what is an assignment in programming

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Kenneth Leroy Busbee

An assignment statement sets and/or re-sets the value stored in the storage location(s) denoted by a variable name; in other words, it copies a value into the variable. [1]

The assignment operator allows us to change the value of a modifiable data object (for beginning programmers this typically means a variable). It is associated with the concept of moving a value into the storage location (again usually a variable). Within most programming languages the symbol used for assignment is the equal symbol. But bite your tongue, when you see the = symbol you need to start thinking: assignment. The assignment operator has two operands. The one to the left of the operator is usually an identifier name for a variable. The one to the right of the operator is a value.

Simple Assignment

The value 21 is moved to the memory location for the variable named: age. Another way to say it: age is assigned the value 21.

Assignment with an Expression

The item to the right of the assignment operator is an expression. The expression will be evaluated and the answer is 14. The value 14 would be assigned to the variable named: total_cousins.

Assignment with Identifier Names in the Expression

The expression to the right of the assignment operator contains some identifier names. The program would fetch the values stored in those variables; add them together and get a value of 44; then assign the 44 to the total_students variable.

• cnx.org: Programming Fundamentals – A Modular Structured Approach using C++
• Wikipedia: Assignment (computer science) ↵

Programming Fundamentals Copyright © 2018 by Kenneth Leroy Busbee is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License , except where otherwise noted.

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• Table of Contents
• Course Home
• Assignments
• Peer Instruction (Instructor)
• Peer Instruction (Student)
• Change Course
• Instructor's Page
• Progress Page
• Edit Profile
• Change Password
• Scratch ActiveCode
• Scratch Activecode
• Instructors Guide
• About Runestone
• Report A Problem
• 1.1 Preface
• 1.2 Why Programming? Why Java?
• 1.3 Variables and Data Types
• 1.4 Expressions and Assignment Statements
• 1.5 Compound Assignment Operators
• 1.6 Casting and Ranges of Variables
• 1.7 Java Development Environments (optional)
• 1.8 Unit 1 Summary
• 1.9 Unit 1 Mixed Up Code Practice
• 1.10 Unit 1 Coding Practice
• 1.11 Multiple Choice Exercises
• 1.12 Lesson Workspace
• 1.3. Variables and Data Types" data-toggle="tooltip">
• 1.5. Compound Assignment Operators' data-toggle="tooltip" >

1.4. Expressions and Assignment Statements ¶

In this lesson, you will learn about assignment statements and expressions that contain math operators and variables.

1.4.1. Assignment Statements ¶

Remember that a variable holds a value that can change or vary. Assignment statements initialize or change the value stored in a variable using the assignment operator = . An assignment statement always has a single variable on the left hand side of the = sign. The value of the expression on the right hand side of the = sign (which can contain math operators and other variables) is copied into the memory location of the variable on the left hand side.

Figure 1: Assignment Statement (variable = expression) ¶

Instead of saying equals for the = operator in an assignment statement, say “gets” or “is assigned” to remember that the variable on the left hand side gets or is assigned the value on the right. In the figure above, score is assigned the value of 10 times points (which is another variable) plus 5.

The following video by Dr. Colleen Lewis shows how variables can change values in memory using assignment statements.

As we saw in the video, we can set one variable to a copy of the value of another variable like y = x;. This won’t change the value of the variable that you are copying from.

Click on the Show CodeLens button to step through the code and see how the values of the variables change.

The program is supposed to figure out the total money value given the number of dimes, quarters and nickels. There is an error in the calculation of the total. Fix the error to compute the correct amount.

Calculate and print the total pay given the weekly salary and the number of weeks worked. Use string concatenation with the totalPay variable to produce the output Total Pay = $3000 . Don’t hardcode the number 3000 in your print statement.

Assume you have a package with a given height 3 inches and width 5 inches. If the package is rotated 90 degrees, you should swap the values for the height and width. The code below makes an attempt to swap the values stored in two variables h and w, which represent height and width. Variable h should end up with w’s initial value of 5 and w should get h’s initial value of 3. Unfortunately this code has an error and does not work. Use the CodeLens to step through the code to understand why it fails to swap the values in h and w.

1-4-7: Explain in your own words why the ErrorSwap program code does not swap the values stored in h and w.

Swapping two variables requires a third variable. Before assigning h = w , you need to store the original value of h in the temporary variable. In the mixed up programs below, drag the blocks to the right to put them in the right order.

The following has the correct code that uses a third variable named “temp” to swap the values in h and w.

The code is mixed up and contains one extra block which is not needed in a correct solution. Drag the needed blocks from the left into the correct order on the right, then check your solution. You will be told if any of the blocks are in the wrong order or if you need to remove one or more blocks.

After three incorrect attempts you will be able to use the Help Me button to make the problem easier.

Fix the code below to perform a correct swap of h and w. You need to add a new variable named temp to use for the swap.

1.4.2. Incrementing the value of a variable ¶

If you use a variable to keep score you would probably increment it (add one to the current value) whenever score should go up. You can do this by setting the variable to the current value of the variable plus one (score = score + 1) as shown below. The formula looks a little crazy in math class, but it makes sense in coding because the variable on the left is set to the value of the arithmetic expression on the right. So, the score variable is set to the previous value of score + 1.

Click on the Show CodeLens button to step through the code and see how the score value changes.

1-4-11: What is the value of b after the following code executes?

• It sets the value for the variable on the left to the value from evaluating the right side. What is 5 * 2?
• Correct. 5 * 2 is 10.

1-4-12: What are the values of x, y, and z after the following code executes?

• x = 0, y = 1, z = 2
• These are the initial values in the variable, but the values are changed.
• x = 1, y = 2, z = 3
• x changes to y's initial value, y's value is doubled, and z is set to 3
• x = 2, y = 2, z = 3
• Remember that the equal sign doesn't mean that the two sides are equal. It sets the value for the variable on the left to the value from evaluating the right side.
• x = 1, y = 0, z = 3

1.4.3. Operators ¶

Java uses the standard mathematical operators for addition ( + ), subtraction ( - ), multiplication ( * ), and division ( / ). Arithmetic expressions can be of type int or double. An arithmetic operation that uses two int values will evaluate to an int value. An arithmetic operation that uses at least one double value will evaluate to a double value. (You may have noticed that + was also used to put text together in the input program above – more on this when we talk about strings.)

Java uses the operator == to test if the value on the left is equal to the value on the right and != to test if two items are not equal. Don’t get one equal sign = confused with two equal signs == ! They mean different things in Java. One equal sign is used to assign a value to a variable. Two equal signs are used to test a variable to see if it is a certain value and that returns true or false as you’ll see below. Use == and != only with int values and not doubles because double values are an approximation and 3.3333 will not equal 3.3334 even though they are very close.

Run the code below to see all the operators in action. Do all of those operators do what you expected? What about 2 / 3 ? Isn’t surprising that it prints 0 ? See the note below.

When Java sees you doing integer division (or any operation with integers) it assumes you want an integer result so it throws away anything after the decimal point in the answer, essentially rounding down the answer to a whole number. If you need a double answer, you should make at least one of the values in the expression a double like 2.0.

With division, another thing to watch out for is dividing by 0. An attempt to divide an integer by zero will result in an ArithmeticException error message. Try it in one of the active code windows above.

Operators can be used to create compound expressions with more than one operator. You can either use a literal value which is a fixed value like 2, or variables in them. When compound expressions are evaluated, operator precedence rules are used, so that *, /, and % are done before + and -. However, anything in parentheses is done first. It doesn’t hurt to put in extra parentheses if you are unsure as to what will be done first.

In the example below, try to guess what it will print out and then run it to see if you are right. Remember to consider operator precedence .

1-4-15: Consider the following code segment. Be careful about integer division.

What is printed when the code segment is executed?

• 0.666666666666667
• Don't forget that division and multiplication will be done first due to operator precedence.
• Yes, this is equivalent to (5 + ((a/b)*c) - 1).
• Don't forget that division and multiplication will be done first due to operator precedence, and that an int/int gives an int result where it is rounded down to the nearest int.

1-4-16: Consider the following code segment.

What is the value of the expression?

• Dividing an integer by an integer results in an integer
• Correct. Dividing an integer by an integer results in an integer
• The value 5.5 will be rounded down to 5

1-4-17: Consider the following code segment.

• Correct. Dividing a double by an integer results in a double
• Dividing a double by an integer results in a double

1-4-18: Consider the following code segment.

• Correct. Dividing an integer by an double results in a double
• Dividing an integer by an double results in a double

1.4.4. The Modulo Operator ¶

The percent sign operator ( % ) is the mod (modulo) or remainder operator. The mod operator ( x % y ) returns the remainder after you divide x (first number) by y (second number) so 5 % 2 will return 1 since 2 goes into 5 two times with a remainder of 1. Remember long division when you had to specify how many times one number went into another evenly and the remainder? That remainder is what is returned by the modulo operator.

Figure 2: Long division showing the whole number result and the remainder ¶

In the example below, try to guess what it will print out and then run it to see if you are right.

The result of x % y when x is smaller than y is always x . The value y can’t go into x at all (goes in 0 times), since x is smaller than y , so the result is just x . So if you see 2 % 3 the result is 2 .

1-4-21: What is the result of 158 % 10?

• This would be the result of 158 divided by 10. modulo gives you the remainder.
• modulo gives you the remainder after the division.
• When you divide 158 by 10 you get a remainder of 8.

1-4-22: What is the result of 3 % 8?

• 8 goes into 3 no times so the remainder is 3. The remainder of a smaller number divided by a larger number is always the smaller number!
• This would be the remainder if the question was 8 % 3 but here we are asking for the reminder after we divide 3 by 8.
• What is the remainder after you divide 3 by 8?

1.4.5. FlowCharting ¶

Assume you have 16 pieces of pizza and 5 people. If everyone gets the same number of slices, how many slices does each person get? Are there any leftover pieces?

In industry, a flowchart is used to describe a process through symbols and text. A flowchart usually does not show variable declarations, but it can show assignment statements (drawn as rectangle) and output statements (drawn as rhomboid).

The flowchart in figure 3 shows a process to compute the fair distribution of pizza slices among a number of people. The process relies on integer division to determine slices per person, and the mod operator to determine remaining slices.

Figure 3: Example Flow Chart ¶

A flowchart shows pseudo-code, which is like Java but not exactly the same. Syntactic details like semi-colons are omitted, and input and output is described in abstract terms.

Complete the program based on the process shown in the Figure 3 flowchart. Note the first line of code declares all 4 variables as type int. Add assignment statements and print statements to compute and print the slices per person and leftover slices. Use System.out.println for output.

1.4.6. Storing User Input in Variables ¶

Variables are a powerful abstraction in programming because the same algorithm can be used with different input values saved in variables.

Figure 4: Program input and output ¶

A Java program can ask the user to type in one or more values. The Java class Scanner is used to read from the keyboard input stream, which is referenced by System.in . Normally the keyboard input is typed into a console window, but since this is running in a browser you will type in a small textbox window displayed below the code. The code below shows an example of prompting the user to enter a name and then printing a greeting. The code String name = scan.nextLine() gets the string value you enter as program input and then stores the value in a variable.

Run the program a few times, typing in a different name. The code works for any name: behold, the power of variables!

Run this program to read in a name from the input stream. You can type a different name in the input window shown below the code.

Try stepping through the code with the CodeLens tool to see how the name variable is assigned to the value read by the scanner. You will have to click “Hide CodeLens” and then “Show in CodeLens” to enter a different name for input.

The Scanner class has several useful methods for reading user input. A token is a sequence of characters separated by white space.

Run this program to read in an integer from the input stream. You can type a different integer value in the input window shown below the code.

A rhomboid (slanted rectangle) is used in a flowchart to depict data flowing into and out of a program. The previous flowchart in Figure 3 used a rhomboid to indicate program output. A rhomboid is also used to denote reading a value from the input stream.

Figure 5: Flow Chart Reading User Input ¶

Figure 5 contains an updated version of the pizza calculator process. The first two steps have been altered to initialize the pizzaSlices and numPeople variables by reading two values from the input stream. In Java this will be done using a Scanner object and reading from System.in.

Complete the program based on the process shown in the Figure 5 flowchart. The program should scan two integer values to initialize pizzaSlices and numPeople. Run the program a few times to experiment with different values for input. What happens if you enter 0 for the number of people? The program will bomb due to division by zero! We will see how to prevent this in a later lesson.

The program below reads two integer values from the input stream and attempts to print the sum. Unfortunately there is a problem with the last line of code that prints the sum.

Run the program and look at the result. When the input is 5 and 7 , the output is Sum is 57 . Both of the + operators in the print statement are performing string concatenation. While the first + operator should perform string concatenation, the second + operator should perform addition. You can force the second + operator to perform addition by putting the arithmetic expression in parentheses ( num1 + num2 ) .

More information on using the Scanner class can be found here https://www.w3schools.com/java/java_user_input.asp

1.4.7. Programming Challenge : Dog Years ¶

In this programming challenge, you will calculate your age, and your pet’s age from your birthdates, and your pet’s age in dog years. In the code below, type in the current year, the year you were born, the year your dog or cat was born (if you don’t have one, make one up!) in the variables below. Then write formulas in assignment statements to calculate how old you are, how old your dog or cat is, and how old they are in dog years which is 7 times a human year. Finally, print it all out.

Calculate your age and your pet’s age from the birthdates, and then your pet’s age in dog years. If you want an extra challenge, try reading the values using a Scanner.

1.4.8. Summary ¶

Arithmetic expressions include expressions of type int and double.

The arithmetic operators consist of +, -, * , /, and % (modulo for the remainder in division).

An arithmetic operation that uses two int values will evaluate to an int value. With integer division, any decimal part in the result will be thrown away, essentially rounding down the answer to a whole number.

An arithmetic operation that uses at least one double value will evaluate to a double value.

Operators can be used to construct compound expressions.

During evaluation, operands are associated with operators according to operator precedence to determine how they are grouped. (*, /, % have precedence over + and -, unless parentheses are used to group those.)

An attempt to divide an integer by zero will result in an ArithmeticException to occur.

The assignment operator (=) allows a program to initialize or change the value stored in a variable. The value of the expression on the right is stored in the variable on the left.

During execution, expressions are evaluated to produce a single value.

The value of an expression has a type based on the evaluation of the expression.

Learning programming languages

Strategies for programming assignments, citing code.

Coding assignments can range from simple programs to full-blown applications. It is important to know how to approach such assignments, so that you can complete them to the best of your ability. Some platforms you may be asked to develop for are:

• Web  — websites and web apps for browsers like Chrome or Firefox
• Mobile  — mobile apps for iOS and Android
• Desktop  — desktop applications or programs for Windows, macOS and Linux.

If you are starting a coding assignment in a programming language that you are not familiar with, there are tutorials you can take to understand the basics in a few hours:

• Learn a range of  programming language training and tutorials  from LinkedIn Learning (UQ login is required)
• Codecademy  has courses on web development, data science and computer science
• w3schools  has tutorials on web development languages — HTML, CSS, JavaScript, Python etc.

Get more information on  tools for web, software and mobile application development .

Universal strategies that can be applied to make your programming assignments easier:

• Start early  — this gives you more time to think about the task and how you might approach it, but also more time to get help, if needed
• Plan your program using pseudocode  —  pseudocode  is a great method for planning what you want to code in way that is easy for people to understand
• Create the HTML, CSS and JavaScript files
• Link the CSS and JavaScript files using the appropriate tags in your HTML file.
• Use comments  — all programming languages allow you to write comments that are lines which are ignored by the program. A great way to use comments is to type out the steps required for coding a piece of functionality. You can then follow these steps to code it line by line
• Take a break  — if you ever get stuck, it’s probably a good time to take a break. Breaks as short as 5 minutes can be enough to clear your mind
• Explain your problems to a rubber duck  —  Rubber duck debugging  is actually a legitimate way of solving programming related problems. It works simply by explaining your problems aloud, which can help you find what’s causing bugs in your code.

Students should confirm what is permitted for a specific assignment prior to commencing. Some assignments do not permit the use of external support and all code must be written by the individual. However, if you are allowed to use externally sourced code it must be referenced if it is not your own original work. Failure to reference externally sourced, non-original work can result in misconduct proceedings. An external source is code, including from anywhere on the internet or from a tutorial, taken or used to write your own code.

References should provide clear and accurate information for each source and should identify where they have been used in your work. A single URL is not a complete or accurate reference. URLs should link directly to the work cited, not just to the website it is hosted on. An example format for referencing online sources:

[where used] : [title of asset], [creator of asset]; retrieved from [website title] ([URL]), Last accessed [DD/MM/YYYY}

For code references, the [where used] should map to the position in the code e.g. in the code itself, create a comment to identify where in your code you have used an external source:

For code with no changes or adaptations

(How to comment) retrieved from Unity Answers : how to comment the lines? (http://answers.unity3d.com/answers/221574/view.html target=”_blank” rel=”noopener noreferrer”) Last accessed 11/9/2017

Ensure you are using syntax specifically for the programming language being used.

For code that you have changed or adapted

You should describe how you adapted it.

(Output Loop) retrieved from Unity Answers : Writing a Loop (http://answers.unity3d.com/answers/221574/view.html target=”_blank” rel=”noopener noreferrer”) Last accessed 9/9/2017

Types of Assignments Copyright © 2023 by The University of Queensland is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License , except where otherwise noted.

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• Assignment Statement

An Assignment statement is a statement that is used to set a value to the variable name in a program .

Assignment statement allows a variable to hold different types of values during its program lifespan. Another way of understanding an assignment statement is, it stores a value in the memory location which is denoted by a variable name.

The symbol used in an assignment statement is called as an operator . The symbol is ‘=’ .

Note: The Assignment Operator should never be used for Equality purpose which is double equal sign ‘==’.

The Basic Syntax of Assignment Statement in a programming language is :

variable = expression ;

variable = variable name

expression = it could be either a direct value or a math expression/formula or a function call

Few programming languages such as Java, C, C++ require data type to be specified for the variable, so that it is easy to allocate memory space and store those values during program execution.

data_type variable_name = value ;

In the above-given examples, Variable ‘a’ is assigned a value in the same statement as per its defined data type. A data type is only declared for Variable ‘b’. In the 3 rd line of code, Variable ‘a’ is reassigned the value 25. The 4 th line of code assigns the value for Variable ‘b’.

Assignment Statement Forms

This is one of the most common forms of Assignment Statements. Here the Variable name is defined, initialized, and assigned a value in the same statement. This form is generally used when we want to use the Variable quite a few times and we do not want to change its value very frequently.

Tuple Assignment

Generally, we use this form when we want to define and assign values for more than 1 variable at the same time. This saves time and is an easy method. Note that here every individual variable has a different value assigned to it.

(Code In Python)

Sequence Assignment

(Code in Python)

Multiple-target Assignment or Chain Assignment

In this format, a single value is assigned to two or more variables.

Augmented Assignment

In this format, we use the combination of mathematical expressions and values for the Variable. Other augmented Assignment forms are: &=, -=, **=, etc.

Browse more Topics Under Data Types, Variables and Constants

• Concept of Data types
• Built-in Data Types
• Constants in Programing Language 
• Access Modifier
• Variables of Built-in-Datatypes
• Declaration/Initialization of Variables
• Type Modifier

Few Rules for Assignment Statement

Few Rules to be followed while writing the Assignment Statements are:

• Variable names must begin with a letter, underscore, non-number character. Each language has its own conventions.
• The Data type defined and the variable value must match.
• A variable name once defined can only be used once in the program. You cannot define it again to store other types of value.
• If you assign a new value to an existing variable, it will overwrite the previous value and assign the new value.

FAQs on Assignment Statement

Q1. Which of the following shows the syntax of an  assignment statement ?

• variablename = expression ;
• expression = variable ;
• datatype = variablename ;
• expression = datatype variable ;

Answer – Option A.

Q2. What is an expression ?

• Same as statement
• List of statements that make up a program
• Combination of literals, operators, variables, math formulas used to calculate a value
• Numbers expressed in digits

Answer – Option C.

Q3. What are the two steps that take place when an  assignment statement  is executed?

• Evaluate the expression, store the value in the variable
• Reserve memory, fill it with value
• Evaluate variable, store the result
• Store the value in the variable, evaluate the expression.

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Computer programming - JavaScript and the web

Course: computer programming - javascript and the web   >   unit 1, planning a programming project.

• Planning with pseudo-code
• What to learn next

1. What do you want to make?

• What's your favorite game - arcade game, board game, sports game? Could you make a simplified, digital version of that? Could you mix it up a bit, like give it a different theme or main characters?
• What are your other favorite academic fields? If you love art, could you make an art-making program? If you love history, how about an interactive timeline? If you love science, how about a scientific simulation? 
• What's your favorite movie or TV show? Could you make a digital version of a scene or character from it? Maybe make a game based on it?
• What's a real-life gadget that you love? Could you make a simulation of it?

Breakout : a game where you control a paddle at the bottom of the screen, and you use it to hit a ball upwards and at angles to break bricks. The goal is to break all the bricks, and not let the ball through the ground too many times.

2. What technology will you use?

3. what features will it include.

• User-controlled paddle
• Multiple colored bricks
• Angled ball movement
• Collision detection
• Life display
• Score display
• Sound effects
• Play button
• Help button
• Back button
• Fireworks animation
• Restart button

4. But what features must  it include?

• If I shared this with a friend, which features would I want to make sure were working?
• Which features am I the most excited about building?
• Which features are the most unique to my program?
• Which features will I learn the most from implementing?
• Are there any features that seem too far beyond my current skill level?
• (P1) User-controlled paddle
• (P1) Multiple colored bricks
• (P1) Angled ball movement
• (P1) Collision detection
• (P2) Life display
• (P2) Score display
• (P3) Sound effects
• (P2) Play button
• (P3) Help button
• (P3) Back button
• (P2) Headline
• (P3) Fireworks animation
• (P3) Restart button
• Start scene w/play button
• Win scene w/headline
• Lose scene w/Restart button

5. How will you implement it?

• Brick ( .isHit() )
• Paddle ( .move() )
• Ball ( .move() )
• Ball-brick collision ( function , use bounding box)
• Paddle-ball angling ( function , invert angle)
• Keyboard-paddle movement ( keyPressed )
• Buttons for scene changes ( mouseClicked )
• Ball deaths ( array)
• Ball hits ( array )

6. What's your timeline?

• Week 1: Design and pseudo-code
• Week 2: Rough visuals
• Week 3: Ball moving/collision mechanics
• Week 4: Scoring mechanics
• Week 5: Scenes (Start/Win/Lose)
• Week 6: Polish, Manual tests (QA), Prep for demo

Are you ready!?

Want to join the conversation.

• Upvote Button navigates to signup page
• Downvote Button navigates to signup page
• Flag Button navigates to signup page

Variable Assignment

To "assign" a variable means to symbolically associate a specific piece of information with a name. Any operations that are applied to this "name" (or variable) must hold true for any possible values. The assignment operator is the equals sign which SHOULD NEVER be used for equality, which is the double equals sign.

The '=' symbol is the assignment operator. Warning, while the assignment operator looks like the traditional mathematical equals sign, this is NOT the case. The equals operator is '=='

Design Pattern

To evaluate an assignment statement:

• Evaluate the "right side" of the expression (to the right of the equal sign).
• Once everything is figured out, place the computed value into the variables bucket.

We've already seen many examples of assignment. Assignment means: "storing a value (of a particular type) under a variable name" . Think of each assignment as copying the value of the righthand side of the expression into a "bucket" associated with the left hand side name!

Read this as, the variable called "name" is "assigned" the value computed by the expression to the right of the assignment operator ('=');

Now that you have seen some variables being assigned, tell me what the following code means?

The answer to above questions: the assignment means that lkjasdlfjlskdfjlksjdflkj is a variable (a really badly named one), but a variable none-the-less. jlkajdsf and lkjsdflkjsdf must also be variables. The sum of the two numbers held in jlkajdsf and lkjsdflkjsdf is stored in the variable lkjasdlfjlskdfjlksjdflkj.

Examples of builtin Data and Variables (and Constants)

For more info, use the "help" command: (e.g., help realmin);

Examples of using Data and Variable

Pattern to memorize, assignment pattern.

The assignment pattern creates a new variable, if this is the first time we have seen the "name", or, updates the variable to a new value!

Read the following code in English as: First, compute the value of the thing to the right of the assignment operator (the =). then store the computed value under the given name, destroying anything that was there before.

Or more concisely: assign the variable "name" the value computed by "right_hand_expression"

• Data Engineering
• Machine Learning
• RESTful API
• React Native
• Elasticsearch
• Ruby on Rails

Some basic tips for Coding Assignments

Step back, and take a high level view to get a good overall approach.

For example, in a first assignment that is an assembler: this is relatively complex software meant to consume human input, and turn it into MIPS machine code

100,000 ft view:

• this is a translator, consuming text and outputing machine code
• parsing input
• output generation
• intermediate data structures likely
• the various lines of the input are all translated (once each, in some way) into output

A complexity:

A missing label is an error

A duplicate label declaration is an error

Using a code label for data operation, e.g.

L1: ...   lw r1,L1(gp)

Using a data label for code operation, e.g.

  .code   beq r0,r1,myGlobal   .data   myGlobal: .word 0

10,000 ft view (one approach of several possible):

• first defines label address, and generates intermediate data structures
• second generates output from intermediate data structures
• labels, instructions

In a second assignment that is an emulator of MIPS cpu/instruction set: since the machine code is meant to be consumed by the machine hardware directly, this is designed to be so easy that the hardware can do it(!), and, it requires virtually no extra storage, no translation, no intermediate data structures, no labels.

• this is decode in a loop
• traversal is in flow of control order
• machine state: registers
• memory: code & data
• there is virtually no memory allocation required during emulation itself — this is necessarily so because hardware doesn't get to allocate memory to help it either before or during its execution. To one way of looking at it, it just fetches, decodes & executes one instruction at time (though some of that may overlap, e.g. in pipelined processors).
• Emuluation is running a program within a program, so that means two programs running in one! The emulator is the first program; the emulator's input is the second program, which is the machine code program to be emulated. We need to deconflict inputs & outputs of the two programs that (because of the nature of emulation) are sharing one process and hence also sharing the same command line to invoke both their execution.

10,000 ft view:

• disassembly is a bit of a red herring here, as it as first blush it might appeared as assembler exercise — just in the other direction (a translator taking machine code and outputting text) — but that is more complexity than needed for this, given the decode that is already needed for execution.
• inappropriate to apply multi-pass algorithm here
• MIPS machine code is already packed for easy execution

For help with the 100,000 ft view:

• A student recently informed me of https://www.interviewcake.com . I had a look at the free sample, and believe this can be useful to help learn problem analysis and decomposition.
• Also use me or another mentor, early to help with 100,000 ft view. Get help early for an approach if you need it, then work alone, instead of the other way around — this so you don't spend a lot of time coding unhelpful or unecessary approaches. And of course, get more help as needed...

Study the inputs & outputs of the assignment, particularly, the output, then the input, so you really know what the program is supposed to do.

Writing Code

Now it is time to translate your approach into code.

When possible use C# or Java, in these languages, the compiler and runtime will help you with better error messages.

Avoid JavaScript and C (and C++), in these you'll spend too much time on trivial problems.

Start with minimal framework for the program, and step thru it with the debugger.

Add small amounts of code, compile and step thru with the debugger.

Always use good indentation, make it a habit. (I like 4 spaces, that's enough to create a good visualization but not enough to push lines to the edge of the screen window. Two spaces for indentation doesn't create a sufficient visualization for me.)

Use blank lines to separate groups of related lines of code, so, especially between functions, though do this inside functions as well.

Always use {} 's as you're writing code, just assume you'll need them. Start with empty {} and insert code inside that is nicely indented, of course. If we are (ever) done writing/editing the code, we can remove them where that is possible, and, at most, sometimes I'll do that in a small function where the code is simple and clear and the extra {} 's actually create more clutter than they help with.

Otherwise, assume the code you are writing will change, and thus, keep the indentation good to help read the code you're changing, and, use {} 's by habit — so as to avoid nesting errors. Automatic formatters are usually really helpful here, so if your development environment offers one, learn how to use it toward the beginning of your class .

Make a habit of initializing local variables.

Write controls structures first, then insert code, just like {} 's, e.g. regarding adding case write

and then introduce code in between the case and the break; lines.

Use lots of local variables. Your favorite statement should be a variable declartion with an initializer.

Don't do too much work in a single line of code. If you see that, break it into one or more variable declarations with initializers . So, use simple statements that inter connect via local variables. Local variables are virtually free as far as execution goes, and, they simplify debugging tremendously.

The more complex the expression, the harder to debug. And you won't have the local variable to printf or view in the debugger. Also, if the program crashes or throws you have less information about why/what/where.

If you see this:

replicate the line, and change the first to instead introduce a local variable, and the second to instead use the local variable.

and then do it again:

and so forth, using your judgement, which you'll learn as you realize what you need to see during debugging. Use meaningful variable names as best you can.

Comment the code you're writing first with lines of brief descriptive human language, then write code in between the comments. Use blank lines to separate sections. (Then, when its working, update the comments that are probably now incorrect!)

To some extent you should already have your basic data structures designed with your overall approach. However, we often iterate, alternating some design with some coding, and hence introducing new data structures as we go.

For basic implementation of methods and functions think in terms of control structuctures

• if-then-else

Be aware of code path both splitting and joining in if-then-else, and switch. These are key places, to do things like adding program logic or debugging printf 's.

Write loops as either iteratative loops, e.g.

or as stepped-for loops, e.g.

or as infinite loops (and only then edit later if you feel it is necessary). Avoid while or do unless you are already sure that's exactly you'll need. (So called "infinite loops" are simple and allow termination conditions to be expressed as separate, independent statements rather than as a single (potentially complex and larger) boolean expression as used in the while and do loops.)

There is no need for this to be a while loop. If it were, some lines in the loop might have to be duplicated (e.g. before the loop), and, duplication is something we try to avoid. Also, the conditions that might cause looping (blank input, or not a number) are complex enough to do separately on their own rather than within the boolean expression of a while or do while .

Think in terms of inputs & outputs: what you have vs. what you need. This is also the basic function abstraction: given this, produce that. Use functions instead of repeating code. One place to fix a bug is better than two.

Think in terms of types (e.g. is it a collection, vs. singleton) then in terms of values/variables.

Check errors. Consider whether a function might detect any errors at all, and if it could and should, provide the structure or control flow for error paths, so that constant checking for errors will be more painless, as you have a reasonable thing to do when you detect them. When you consider error handling, this may alter the function return types and/or values, e.g. it may affect the way you want to declare and invoke the function.

Code rarely works the first time you run it. Simple things are often missing even in languages that help us more.

So, you need to get good at a variety of debugging techniques, and be able to find bugs, fix them, and move on to the next one right away , because this is pretty iterative.

One approach is to introduce printf 's or WriteLine 's depending on your language and environment. You'll need a lot of them so use numbering or something to keep them straight:

printf ("message 1: %... %...\n", ..., ... ); printf ("message 2: %...\n", ... );

Remember you're using simple statements interconnected by lots of local, right? So, that's what we print in the printf 's — those local variables. Also use printf 's to see your flow of control. Put them at the top of control strutuctes (loops, switch 'es, case statements). Put them in the control structures; put them at the end of control structures where code paths join back together.

Use single stepping in a debugger to watch control flow and to watch variables get values. Remember you're using simple statements connected by variables right?

Always keep the program compiling. Remember you're adding small increments of code, then compiling, running, and debugging that new code . This helps a lot with debugging, since you know what is working vs. what is new.

Before or early on in your coursework:

When you have the flexibility to do so, choose a good language and development environment.

Seek out and learn the automatic code formatting tool in your development environment, if that is availble. For example, you can use control-k, followed by control-d in Visual Studio. In Eclipse, it might automatically reformat as you type.

Seek out and learn the two basics of your debugger: statement single step and variable inspection . (Later, you'll want to be able to set a break point and run to it , so you don't have to single step past code you know is working.)

During assignments:

Get a good approach or overall design before too much coding. Use code coding habits & style. Write simple lines of code connected by variables. Write small increments of code, and compile & run that.

Common problems in C

• uninitialized variables — get in the habit of initializing local variables
• null pointers — if you return null you'll have to check for it; otherwise, try to return something meaningful instead
• memory used after free'd — local arrays disappear after leaving a function
• missing break statement — easy to do in C, lint tools might help
• redirected output is lost / doesn't appear when program crashes — don't redirect to a file, or, pipe to tee to capture the file and see the console output as well. (And an alternative is to flush stdout on signals.)

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Coding assignments can be really challenging. I understood this from my own experience. And when preparing the Programming Assignment , it turned out to be quite difficult to cope on my own. Therefore, I was looking for a source that can do this qualitatively. It’s great that there are professionals in this field, and I can always count on a quality result.

Statement vs Expression – What's the Difference in Programming?

Learning the syntax of a programming language is key if you want to use that language effectively. This is true for both new and experienced developers.

And one of the most important things to pay attention to while learning a programming language is whether the code you're dealing with is a statement or an expression.

It can sometimes be confusing to differentiate between statements and expressions in programming. So this article is meant to simplify the differences so that you can improve your programming skills and become a better developer.

What is an Expression in Programming?

An expression is any word or group of words or symbols that is a value. In programming, an expression is a value, or anything that executes and ends up being a value.

It is necessary to understand that a value is unique. For example, const , let , 2 , 4 , s , a , true , false , and world are values because each of them is unique in meaning or character.

Let's look at some code as an example:

Judging from the code above, const , price , = , and 500 are expressions because each of them has a definite and unique meaning or value. But if we take all of them together const price = 500 - then we have a statement.

Let's look at another example:

Looking at the code above, you can see an anonymous function is assigned to a variable. Oh, wait! You might know that any function is a statement. Can it also be an expression?

Yes! A "function" and a "class" are both statements and expressions because they can perform actions (do or not do tasks) and still execute to a value.

This brings us to statements – so what are they?

What is a Statement in Programming?

A statement is a group of expressions and/or statements that you design to carry out a task or an action.

Statements are two-sided – that is, they either do tasks or don't do them. Any statement that can return a value is automatically qualified to be used as an expression. That is why a function or class is a statement and also an expression in JavaScript.

If you look at the example of the function under the section on expressions, you can see it is assigned and execute to a value passed to a variable. That is why it is an expression in that case.

Examples of Statements in Programming

Inline statements.

The whole of the code above is a statement because it carries out the task of assigning $2000 to amount . It is safe to say a line of code is a statement because most compilers or interpreters don't execute any standalone expression.

Block statements

Look at the below if statement:

The if statement is a statement because it helps us check whether I love you or not. As I have said before, it is two-sided: this code finds out whether "I love you" or not, and that is why it is a statement. Also, it doesn't return any value but it can create side effects.

Here's a loop statement:

In short, any loop is a statement because if it can only do the tasks it is meant to do or not – does loop and doesn't loop. But a loop can't execute to a value in the end. They can only have side effects in JavaScript. Once they can execute to a value in a programming language, then they can also be used as an expression.

For example, you can use forloop and if statement as expressions in Python.

There is also an "IF" expression in Python. That means that something that is a statement in one language can be an expression (or both statement and expression) in another.

Look at the below function statement:

We declare the function add(firstNumber, secondNumber) and it returns a value. The function is called with two arguments as in add(2, 3) by declaration and so it is a statement. If you pay close attention, you will realize that calling the function as a statement is useless since it has no side effect.

Hey, stop! How can we turn it into an expression? Oh yeah, we can do it like this:

Though the function is now an expression the way it is called above, the whole of the code is still a statement.

Check out this class statement:

You can see that we declare the class "Person" and instantiate and assign it to "User" immediately. So, it is used as an expression.

Now, let's use it as a statement:

A class is similar to a function in the sense that it can be declared, assigned, or used as an operand just like a class. So, a class is a statement and/or an expression.

The Main Differences Between an Expression and a Statement in Programming

Expressions can be assigned or used as operands, while statements can only be declared.

Statements create side effects to be useful, while expressions are values or execute to values.

Expressions are unique in meaning, while statements are two-sided in execution. For example, 1 has a certain value while go( ) may be executed or not.

Statements are the whole structure, while expressions are the building blocks. For example, a line or a block of code is a statement.

Why You Should Know the Difference

First of all, understanding the difference between statements and expressions should make learning new programming languages less surprising. If you're used to JavaScript, you may be surprised by Python's ability to assign an if statement as a variable which is not possible in JavaScript.

Second, it makes it easy to use programming paradigms across different programming languages.

For example, a JavaScript "if statement" cannot be used as an expression because it can't execute to a value – it can only create side effects. Yet, you can use the ternary operator if you want to avoid the side effects of using an if statement in JavaScript.

For this reason, you can understand why some programmers avoid if statements by using the ternary operator in JavaScript. It is because they want to avoid side effects .

It also makes your realize why you have to be always careful about the scope of your variables whenever you use a statement. This is true because statements mostly have side effects to be useful, and it is reasonable to understand the scope of your variables and operations. For example,

Hey wait! What would be logged in the console if you ran the code above?

Tell yourself the answer first and then paste the code in the console to confirm. If you you're wrong, you need to learn more about scope and side effects. But if you're right, try to make those functions a bit better to avoid the confusion they may generate.

Knowing the difference also helps you to easily identify non-composable and composable syntaxes (functions, classes, modules, and so on) of a programming language. This makes porting your experience from one programming language to another more interesting and direct.

Wrapping Up

Now that you understand the difference between expressions and statements in programming, and you know why understanding the differences is important, you can identify pieces of code as expressions or statements while coding.

Next time, we'll go even further and help make learning a second programming language easier.

Go and get things done now! See you soon.

I am planning to share a lot about programming tips and tutorials in 2023. If you're struggling to build projects or you want to stay connected with my write-ups and videos, please join my list at YouTooCanCode or subscribe to my YouTube channel at You Too Can Code on YouTube .

Ayobami loves writing history with JavaScript(React) and PHP(Laravel). He has been making programming fun to learn for learners. Check him out on YouTube: https://bit.ly/3usOu3s

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What Is An Assignment In Computer Science

Table of Contents:

Assignment – This definition explains the meaning of Assignment and why it matters.

An assignment is a statement in computer programming that is used to set a value to a variable name. The operator used to do assignment is denoted with an equal sign (=). This operand works by assigning the value on the right-hand side of the operand to the operand on the left-hand side.

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Assignment (computer science)

Certain use patterns are very common, and thus often have special syntax to support them. These are primarily syntactic sugar to reduce redundancy in the source code, but also assists readers of the code in understanding the programmer’s intent, and provides the compiler with a clue to possible optimization.

Today, probably the most generally used notation with this operation is x = expr (initially Superplan 1949–51, popularized by Fortran 1957 and C). The 2nd most generally used notation is(1) x := expr (initially ALGOL 1958, popularised by Pascal). A number of other notations will also be being used. In certain languages, the symbol used is considered being an operator (and therefore a job statement in general returns something). Other languages define assignment like a statement (and therefore it can’t be utilized within an expression).

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In computer programming, an assignment statement sets or re sets the value stored in the storage location(s) denoted by a variable name. In most imperative computer programming languages, assignment statements are one of the basic statements.…

In computer programming, an assignment statement sets or re-sets the value stored in the storage location(s) denoted by a variable name. In most imperative computer programming languages, assignment statements are one of the basic statements. Common notations for the assignment operator are = and :=.

Any assignment that changes an existing value (e. g. x := x + 1) is disallowed in purely functional languages. In functional programming, assignment is discouraged in favor of single assignment, also called name binding or initialization. Single assignment differs from assignment as described in this article in that it can only be made once, usually when the variable is created; no subsequent re-assignment is allowed. Once created by single assignment, named values are not variables but immutable objects.

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Adding Responsible CS to a Programming Assignment

The Proactive CARE template and the Evaluation Rubric were developed by Marty J. Wolf and Colleen Greer as part of the Mozilla Foundation Responsible Computer Science Challenge. These works are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4. 0 International License.

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Overview – The assignment operator allows us to change the value of a modifiable data object (for beginning programmers this typically means a variable). It is associated with the concept of moving a value into the storage location (again usually a variable). Within most programming languages the symbol used for assignment is the equal symbol. But bite your tongue, when you see the = symbol you need to start thinking: assignment. The assignment operator has two operands. The one to the left of the operator is usually an identifier name for a variable. The one to the right of the operator is a value.

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In computer programming, an assignment statement sets and/or re-sets the value stored in the storage location(s) denoted by a variable name; in other words, it copies a value into the variable. In most imperative programming languages, the assignment statement (or expression) is a fundamental construct. (en)

In computer programming, an assignment statement sets and/or re-sets the value stored in the storage location(s) denoted by a variable name; in other words, it copies a value into the variable. In most imperative programming languages, the assignment statement (or expression) is a fundamental construct. Today, the most commonly used notation for this operation is x = expr (originally Superplan 1949–51, popularized by Fortran 1957 and C). The second most commonly used notation is x := expr (originally ALGOL 1958, popularised by Pascal),. Many other notations are also in use. In some languages, the symbol used is regarded as an operator (meaning that the assignment statement as a whole returns a value). Other languages define assignment as a statement (meaning that it cannot be used in an expression). Assignments typically allow a variable to hold different values at different times during its life-span and scope. However, some languages (primarily strictly functional languages) do not allow that kind of “destructive” reassignment, as it might imply changes of non-local state.

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COMPUTER PROGRAMMING ASSIGNMENT 1 1ST YEARS

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1 QUESTION 1 Computer-programming. Computer-programming is definitely an science and art, of giving a mechanism or computer, the directions or instructions to follow along with to resolve an issue or accomplish an activity. QUESTION 2 Variations BETWEEN EVENT-DRIVEN AND OBJECT-ORIENTED AND PROCEDURAL PROGRAMMING LANGUAGES. To say the least, in the event-Driven the flow of Control is dependent upon occasions triggered through the user, (click of the mouse), although Object-Oriented Programming necessitates the programmer to pay attention to the objects the program may use to complete its goal. Finally, in Procedural Oriented Programming, the programmer only focuses on the main tasks the program must perform step-by-step. The flow of control for that program is dependent upon occasions mostly triggered by users. That’s, execution is decided for instance with a user action for example click, keypress, or perhaps a message in the Operating-system (OS) or any other user. Visual Basics and Visual C++ are specifically made to facilitate event-driven programming and supply a built-in development atmosphere (IDE) that partly automates producing code.

Encyclopedia article about Assignment (computer science) by The Free Dictionary.

assignment statement – assignment statement(ə′sīn·mənt ‚stāt·mənt) (computer science) A statement in a computer program that assigns a value to a variable. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. assignment statementIn programming, a compiler directive that places a value into a variable. For example, counter=0 creates a variable named counter and fills it with zeros. The VARIABLE=VALUE syntax is common among programming languages. Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

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Programming Assignments – Computer Science; Rutgers, The State University of New Jersey.

Please remember that the person whose work is copied is also considered responsible for violating academic integrity principles. Take special care to protect your files, directories, and systems appropriately, and be sure to discard printouts so they cannot be retrieved by others (e. g., do not discard printouts in public recycling or garbage bins until after the assignment due date is passed).

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The “+=” and the “-=” functions add or subtract integers together before assigning them to the variable. Therefore, exampleVariableTwo += 5; is actually the same as the statement exampleVariableTwo = exampleVariableTwo + 5;. exampleVariableTwo increases by a value of 3 as a result of the program because it adds 5 and subtracts 2 before printing.

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What is an assignment in computer science example?

An assignment is a statement in computer programming that is used to set a value to a variable name . The operator used to do assignment is denoted with an equal sign (=). This operand works by assigning the value on the right-hand side of the operand to the operand on the left-hand side.

What does assignment mean in programming?

In order to change the data value stored in a variable , you use an operation called assignment. This causes the value to be copied into a memory location, overwriting what was in there before. Different values may be assigned to a variable at different times during the execution of a program.

What is assignment in Python?

An assignment statement evaluates the expression list (remember that this can be a single expression or a comma-separated list, the latter yielding a tuple) and assigns the single resulting object to each of the target lists, from left to right.

What is an assignment statement explain with an example?

An assignment statement gives a value to a variable . For example, x = 5; ... the variable may be a simple name, or an indexed location in an array, or a field (instance variable) of an object, or a static field of a class; and. the expression must result in a value that is compatible with the type of the variable .

What is an assignment in Java?

Assignment in Java is the process of giving a value to a primitive-type variable or giving an object reference to an object-type variable . The equals sign acts as assignment operator in Java, followed by the value to assign.

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Unv youth advocates programme: applications now open, the talent programme by unicef and unv aims at empowering young people, including youth with disabilities, to become agents of change.

UNICEF has launched the UNV Youth Advocates programme , an initiative to recruit talent in partnership with United Nations Volunteers  (UNV) . We aim at empowering young people , including youth with disabilities, to become agents of change and champion children's rights.

Click here to go to the video | Click here to go to the assignments

The UNV Youth Advocates

After the success of the first initiative in 2018 - 2019, which mobilized 42 Youth Advocates (18-24 years old) in 27 countries, UNICEF, in partnership with UNV, is now looking for the second cohort.  We are searching for 20 young, passionate, and skilled advocates to join us and become agents of change advocating for the protection of children’s rights.

The UNV Youth Advocates Programme offers young people the chance to gain one-year professional experience through a National UN Volunteer (UNV) assignment with UNICEF , while also imparting their valuable insights into the organization's work for children and young people.

The recruited UNV Youth Advocates will have access to learning and professional development opportunities, including a suite of online learning programmes.

Young professionals with disabilities and from under-represented groups are especially encouraged to apply.

If you are 18-35 years of age and passionate about children´s rights, check out the assignment opportunities listed below.

Click here to go to the assignments

Listen to what Joyranig, Jean Junior, and Rediet,

UN Youth Volunteers at UNICEF have to say about their experience

and why they think you should join too.

Youth Advocates Assignments

Take note of the closing date for applications. Assignments are removed on the application closing date. Click on the country you are interested in to go to the assignment.

Disability Inclusion Assistant - UNICEF Iran

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On International Women's Day, we celebrate our UNICEF Volunteers who are empowering girls in their communities and around the world

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UNICEF and UNV partnered to launch Career Development Webinars for UN Volunteers serving at UNICEF

7 Best Java Homework Help Websites: How to Choose Your Perfect Match?

J ava programming is not a field that could be comprehended that easily; thus, it is no surprise that young learners are in search of programming experts to get help with Java homework and handle their assignments. But how to choose the best alternative when the number of proposals is enormous? 

In this article, we are going to talk about the top ‘do my Java assignment’ services that offer Java assignment assistance and dwell upon their features. In the end, based on the results, you will be able to choose the one that meets your demands to the fullest and answer your needs. Here is the list of services that are available today, as well as those that are on everyone's lips:

TOP Java Assignment Help Services: What Makes Them Special?

No need to say that every person is an individual and the thing that suits a particular person could not meet the requirements of another. So, how can we name the best Java assignment help services on the web? - We have collected the top issues students face when searching for Java homework help and found the companies that promise to meet these requirements. 

What are these issues, though?

• Pricing . Students are always pressed for budget, and finding services that suit their pockets is vital. Thus, we tried to provide services that are relatively affordable on the market. Of course, professional services can’t be offered too cheaply, so we have chosen the ones that balance professionalism and affordability.
• Programming languages . Not all companies have experts in all possible programming languages. Thus, we tried to choose the ones that offer as many different languages as possible. 
• Expert staff . In most cases, students come to a company when they need to place their ‘do my Java homework’ orders ASAP. Thus, a large expert staff is a real benefit for young learners. They want to come to a service, place their order and get a professional to start working on their project in no time. 
• Reviews . Of course, everyone wants to get professional help with Java homework from a reputable company that has already completed hundreds of Java assignments for their clients. Thus, we have mentioned only those companies that have earned enough positive feedback from their clients.
• Deadline options. Flexible deadline options are also a benefit for those who are placing their last-minute Java homework help assignments. Well, we also provide services with the most extended deadlines for those who want to save some money and place their projects beforehand.
• Guarantees . This is the must-feature if you want to get quality assistance and stay assured you are totally safe with the company you have chosen. In our list, we have only named companies that provide client-oriented guarantees and always keep their word, as well as offer only professional Java assignment experts.
• Customization . Every service from the list offers Java assistance tailored to clients’ personal needs. There, you won’t find companies that offer pre-completed projects and sell them at half-price.

So, let’s have a closer look at each option so you can choose the one that totally meets your needs.

DoMyAssignments.com

At company service, you can get assistance with academic writing as well as STEM projects. The languages you can get help with are C#, C++, Computer science, Java, Javascript, HTML, PHP, Python, Ruby, and SQL.

The company’s prices start at $30/page for a project that needs to be done in 14+ days.

Guarantees and extra services

The company offers a list of guarantees to make your cooperation as comfortable as possible. So, what can you expect from the service?

• Free revisions . When you get your order, you can ask your expert for revisions if needed. It means that if you see that any of your demands were missed, you can get revisions absolutely for free. 
• Money-back guarantee. The company offers professional help, and they are sure about their experts and the quality of their assistance. Still, if you receive a project that does not meet your needs, you can ask for a full refund. 
• Confidentiality guarantee . Stay assured that all your personal information is safe and secure, as the company scripts all the information you share with them.
• 100% customized assistance . At this service, you won’t find pre-written codes, all the projects are completed from scratch.

Expert staff

If you want to hire one of the top Java homework experts at DoMyAssignments , you can have a look at their profile, see the latest orders they have completed, and make sure they are the best match for your needs. Also, you can have a look at the samples presented on their website and see how professional their experts are. If you want to hire a professional who completed a particular sample project, you can also turn to a support team and ask if you can fire this expert.

CodingHomeworkHelp.org

CodingHomeworkHelp is rated at 9.61/10 and has 10+ years of experience in the programming assisting field. Here, you can get help with the following coding assignments: MatLab, Computer Science, Java, HTML, C++, Python, R Studio, PHP, JavaScript, and C#.

Free options all clients get

Ordering your project with CodingHomeworkHelp.org, you are to enjoy some other options that will definitely satisfy you.

• Partial payments . If you order a large project, you can pay for it in two parts. Order the first one, get it done, and only then pay for the second one.
• Revisions . As soon as you get your order, you can ask for endless revisions unless your project meets your initial requirements.
• Chat with your expert . When you place your order, you get an opportunity to chat directly with your coding helper. If you have any questions or demands, there is no need to first contact the support team and ask them to contact you to your assistant. 
• Code comments . If you have questions concerning your code, you can ask your helper to provide you with the comments that will help you better understand it and be ready to discuss your project with your professor.

The prices start at $20/page if you set a 10+ days deadline. But, with CodingHomeworkHelp.org, you can get a special discount; you can take 20% off your project when registering on the website. That is a really beneficial option that everyone can use.

CWAssignments.com

CWAssignments.com is an assignment helper where you can get professional help with programming and calculations starting at $30/page. Moreover, you can get 20% off your first order.

Working with the company, you are in the right hands and can stay assured that the final draft will definitely be tailored to your needs. How do CWAssignments guarantee their proficiency?

• Money-back guarantee . If you are not satisfied with the final work, if it does not meet your expectations, you can request a refund. 
• Privacy policy . The service collects only the data essential to complete your order to make your cooperation effective and legal. 
• Security payment system . All the transactions are safe and encrypted to make your personal information secure. 
• No AI-generated content . The company does not use any AI tools to complete their orders. When you get your order, you can even ask for the AI detection report to see that your assignment is pure. 

With CWAssignments , you can regulate the final cost of your project. As it was mentioned earlier, the prices start at $30/page, but if you set a long-term deadline or ask for help with a Java assignment or with a part of your task, you can save a tidy sum.

DoMyCoding.com

This company has been offering its services on the market for 18+ years and provides assistance with 30+ programming languages, among which are Python, Java, C / C++ / C#, JavaScript, HTML, SQL, etc. Moreover, here, you can get assistance not only with programming but also with calculations. 

Pricing and deadlines

With DoMyCoding , you can get help with Java assignments in 8 hours, and their prices start at $30/page with a 14-day deadline.

Guarantees and extra benefits

The service offers a number of guarantees that protect you from getting assistance that does not meet your requirements. Among the guarantees, you can find:

• The money-back guarantee . If your order does not meet your requirements, you will get a full refund of your order.
• Free edits within 7 days . After you get your project, you can request any changes within the 7-day term. 
• Payments in parts . If you have a large order, you can pay for it in installments. In this case, you get a part of your order, check if it suits your needs, and then pay for the other part. 
• 24/7 support . The service operates 24/7 to answer your questions as well as start working on your projects. Do not hesitate to use this option if you need to place an ASAP order.
• Confidentiality guarantee . The company uses the most secure means to get your payments and protects the personal information you share on the website to the fullest.

More benefits

Here, we also want to pay your attention to the ‘Samples’ section on the website. If you are wondering if a company can handle your assignment or you simply want to make sure they are professionals, have a look at their samples and get answers to your questions. 

AssignCode.com

AssignCode is one of the best Java assignment help services that you can entrust with programming, mathematics, biology, engineering, physics, and chemistry. A large professional staff makes this service available to everyone who needs help with one of these disciplines. As with some of the previous companies, AssignCode.com has reviews on different platforms (Reviews.io and Sitejabber) that can help you make your choice. 

As with all the reputed services, AssignCode offers guarantees that make their cooperation with clients trustworthy and comfortable. Thus, the company guarantees your satisfaction, confidentiality, client-oriented attitude, and authenticity.

Special offers

Although the company does not offer special prices on an ongoing basis, regular clients can benefit from coupons the service sends them via email. Thus, if you have already worked with the company, make sure to check your email before placing a new one; maybe you have received a special offer that will help you save some cash.

AssignmentShark.com

Reviews about this company you can see on different platforms. Among them are Reviews.io (4.9 out of 5), Sitejabber (4.5 points), and, of course, their own website (9.6 out of 10). The rate of the website speaks for itself.

Pricing 

When you place your ‘do my Java homework’ request with AssignmentShark , you are to pay $20/page for the project that needs to be done in at least ten days. Of course, if the due date is closer, the cost will differ. All the prices are presented on the website so that you can come, input all the needed information, and get an approximate calculation.

Professional staff

On the ‘Our experts’ page, you can see the full list of experts. Or, you can use filters to see the professional in the required field. 

The company has a quick form on its website for those who want to join their professional staff, which means that they are always in search of new experts to make sure they can provide clients with assistance as soon as the need arises.

Moreover, if one wants to make sure the company offers professional assistance, one can have a look at the latest orders and see how experts provide solutions to clients’ orders.

What do clients get?

Placing orders with the company, one gets a list of inclusive services:

• Free revisions. You can ask for endless revisions until your order fully meets your demands.
• Code comments . Ask your professional to provide comments on the codes in order to understand your project perfectly. 
• Source files . If you need the list of references and source files your helper turned to, just ask them to add these to the project.
• Chat with the professional. All the issues can be solved directly with your coding assistant.
• Payment in parts. Large projects can be paid for in parts. When placing your order, let your manager know that you want to pay in parts.

ProgrammingDoer.com

ProgrammingDoer is one more service that offers Java programming help to young learners and has earned a good reputation among previous clients. 

The company cherishes its reputation and does its best to let everyone know about their proficiency. Thus, you, as a client, can read what people think about the company on several platforms - on their website as well as at Reviews.io.

What do you get with the company?

Let’s have a look at the list of services the company offers in order to make your cooperation with them as comfortable as possible. 

• Free revisions . If you have any comments concerning the final draft, you can ask your professional to revise it for free as many times as needed unless it meets your requirements to the fullest.
• 24/7 assistance . No matter when you realize that you have a programming assignment that should be done in a few days. With ProgrammingDoer, you can place your order 24/7 and get a professional helper as soon as there is an available one.
• Chat with the experts . When you place your order with the company, you get an opportunity to communicate with your coding helper directly to solve all the problems ASAP.

Extra benefits

If you are not sure if the company can handle your assignment the right way, if they have already worked on similar tasks, or if they have an expert in the needed field, you can check this information on your own. First, you can browse the latest orders and see if there is something close to the issue you have. Then, you can have a look at experts’ profiles and see if there is anyone capable of solving similar issues.

Can I hire someone to do my Java homework?

If you are not sure about your Java programming skills, you can always ask a professional coder to help you out. All you need is to find the service that meets your expectations and place your ‘do my Java assignment’ order with them.  

What is the typical turnaround time for completing a Java homework assignment?

It depends on the service that offers such assistance as well as on your requirements. Some companies can deliver your project in a few hours, but some may need more time. But, you should mind that fast delivery is more likely to cost you some extra money. 

What is the average pricing structure for Java assignment help?

The cost of the help with Java homework basically depends on the following factors: the deadline you set, the complexity level of the assignment, the expert you choose, and the requirements you provide.

How will we communicate and collaborate on my Java homework?

Nowadays, Java assignment help companies provide several ways of communication. In most cases, you can contact your expert via live chat on a company’s website, via email, or a messenger. To see the options, just visit the chosen company’s website and see what they offer.

Regarding the Author:

Nayeli Ellen, a dynamic editor at AcademicHelp, combines her zeal for writing with keen analytical skills. In her comprehensive review titled " Programming Assignment Help: 41 Coding Homework Help Websites ," Nayeli offers an in-depth analysis of numerous online coding homework assistance platforms.

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Dynamic Host Configuration Protocol (DHCP)

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• How DHCP server dynamically assigns IP address to a host?
• Which Protocol Is Used to Automatically Assign IP Addresses to Hosts?
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Dynamic Host Configuration Protocol (DHCP) vs Static IP Assignment

The two different approaches of network configuration to manage IP addresses for devices are DHCP (Dynamic Host Configuration Protocol) and Static IP Assignment which you can use to configure computer networks and to assign IP addresses to devices on a network are the focus. A distinctive feature of DHCP is the automated assignment of IP addresses dynamically, while Static IPs do it the other way around, which means they do not assign fixed IP addresses manually. Being knowledgeable about the dissimilarities in methodologies is just like proficiency in network administration as meeting the unique needs of networking infrastructure.

Primary Terminologies

• Dynamic Host Configuration Protocol (DHCP): A network protocol that automates the allocation of IP address(es) to devices in a network and improves the IP address management processes.
• Static IP Assignment: Static IP addressing for gadgets and deployment of such addresses all over the network to avoid dynamic addressing sometimes.
• IP Address: It is a unique numeric code assigned to any device that is connected to a network which is used to communicate between the devices and to identify themselves.
• Network Management: The activity of controlling and maintaining IP address allocation and configuration.
• Configuration Complexity: The complexity and amount of labor that are involved in the task of IP address assignment within a network.
• Resource Usage: It is used to implement better IP address utilization, and IPv4 wasting is a possibility if not handled appropriately.
• Device Identification: To specifically characterize the devices according to their IP addresses allows effective network administration and resolving problems.
• IP Address Ownership: The system of IP addresses being either assigned temporarily by a DHCP (Dynamic Host Configuration Protocol) server or permanently assigned on the basis of the ownership of the separate devices.

Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables automatic assignment of IP addresses (and other network configuring information) to devices being accessed on the network. The function of DHCP is to simplify IP address management processes as it allows the automatic allocation of addresses to devices when they connect to the network. In this merging of the IP address allocation makes the process more efficient and relieves you from the pain of assigning addresses manually to all devices.

Example: An office network provided with a DHCP server allot an IP address automatically to the new laptop joining the network. This intelligent allocation mechanism, the last device recognizes new onboarding process is easier.

Step-by-Step Process: DHCP

• The device communicated through the network.
• DHCP client transmits a data packet that is broadcast to receive an IP address.
• The DHCP server is subsequently given the address request and it gives an available IP address.
• The client signs off on the terms and inputs the IP address.
• DHCP server assigns IP to the client in addition to other config network information (subnet mask, default gateway, DNS servers, etc.)
• The client will be provided with the network prefix so that he can use it for network communication until the lease expires or the device disconnects from the network.

Static IP Assignment

DHCP is used to temporarily assign IP addresses while the static IP assignment is about the manual configuration of a dedicated IP for each device on the network. In contrast to the DHCP in which IP addresses change over time or sometimes differently, the static IP assignments make it possible to always use the same IP address for one device. Such a technique is employed in instances of network elements such as servers, printers, and other network infrastructure devices that require wire addresses.

Example: A network printer is assigned a static IP address just to ensure that its address does not change which it happens to be a very critical component because that is what enables other devices to communicate and collaborate with ease.

Step-by-Step Process: Static IP Assignment

• In network administration, a particular IP address is assigned by hand to a device.
• The device can now use this single fixed IP address to communicate with the network every time, providing reliability and predictability.

Dynamic Host Configuration Protocol (DHCP) vs Static IP Assignment – FAQs

What is the main difference between dhcp and static ip assignment.

DHCP provides dynamic IP address assignment, although Static IP Assignment requires implementing hard-coded static IP addresses for devices.

Which method offers more flexibility in IP address management?

DHCP provides simplicity and reliability in IP management while in case with the static IP address each machine gets the fixed and predictive IP address.

Is DHCP or Static IP Assignment better for large networks?

DHCP is common among larger networks since it can easily scale and has less complicated configuration.

Can DHCP and Static IP Assignment coexist in the same network?

Definitely, a network is always a collection of DHCP-assigned addresses and statically assigned addresses which are needed for particular devices on the network.

Do Static IP Assignments pose security risks?

Static IP Assignments is capable of affording more access to IP addresses usage and control, however, if not handled cautiously, it can expose machines to foreign IP addresses and other vulnerabilities.

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