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VB.Net - Assignment Operators
There are following assignment operators supported by VB.Net −
Try the following example to understand all the assignment operators available in VB.Net −
When the above code is compiled and executed, it produces the following result −
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Compound-Assignment Operators
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Compound-assignment operators provide a shorter syntax for assigning the result of an arithmetic or bitwise operator. They perform the operation on the two operands before assigning the result to the first operand.
Compound-Assignment Operators in Java
Java supports 11 compound-assignment operators:
Example Usage
To assign the result of an addition operation to a variable using the standard syntax:
But use a compound-assignment operator to effect the same outcome with the simpler syntax:
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&= Operator (Visual Basic)
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Concatenates a String expression to a String variable or property and assigns the result to the variable or property.
variableorproperty Required. Any String variable or property.
expression Required. Any String expression.
The element on the left side of the &= operator can be a simple scalar variable, a property, or an element of an array. The variable or property cannot be ReadOnly . The &= operator concatenates the String expression on its right to the String variable or property on its left, and assigns the result to the variable or property on its left.
Overloading
The & Operator can be overloaded , which means that a class or structure can redefine its behavior when an operand has the type of that class or structure. Overloading the & operator affects the behavior of the &= operator. If your code uses &= on a class or structure that overloads & , be sure you understand its redefined behavior. For more information, see Operator Procedures .
The following example uses the &= operator to concatenate two String variables and assign the result to the first variable.
- & Operator
- += Operator
- Assignment Operators
- Concatenation Operators
- Operator Precedence in Visual Basic
- Operators Listed by Functionality
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IDE0054 "Use compound assignment" false positive in object initializer #33382
dgrunwald commented Feb 14, 2019
jnm2 commented Mar 9, 2019
Sorry, something went wrong.
mavasani commented Mar 9, 2019
CyrusNajmabadi commented Mar 9, 2019
Jnm2 commented mar 9, 2019 • edited.
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Write a statement using a compound assignment operator to add 5 to val (an integer variable that has already been declared and initialized).
LANGUAGE: Visual Basic
Microsoft Visual C# 2013 Step by Step by John Sharp
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Chapter 5. Using compound assignment and iteration statements
After completing this chapter, you will be able to:
Using compound assignment operators
Writing while statements
Writing do statements
Chapter 4 demonstrates how to use the if and switch constructs to run statements selectively. In this chapter, you’ll see how to use a variety of iteration (or looping ) statements to run one or more statements repeatedly.
When you write iteration statements, you usually need to control the number of iterations that you perform. You can achieve this by using a variable, updating its value as each iteration is performed, and stopping the process when the variable reaches a particular value. To help simplify this process, you’ll start by learning about the special ...
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Use compound assignment: Category: Style: Subcategory: Language rules (expression-level preferences) Applicable languages: C# and Visual Basic: Options: dotnet_style_prefer_compound_assignment: Property Value; Rule ID: IDE0074: Title: Use coalesce compound assignment: Category: Style: Subcategory: Language rules (expression-level preferences)
Re: (newbie question) "Use compound assignment" in a simple program. Originally Posted by David Anton. It both compiles and runs for me. The issue about compound assignment is just a suggestion by Visual Studio - you can rewrite that statement as "n /= 2", but your version is still correct. I just compiled it again, and I am getting a different ...
Try the following example to understand all the assignment operators available in VB.Net −. Module assignment. Sub Main() Dim a As Integer = 21 Dim pow As Integer = 2 Dim str1 As String = "Hello! " Dim str2 As String = "VB Programmers" Dim c As Integer. c = a. Console.WriteLine("Line 1 - = Operator Example, _.
To assign the result of an addition operation to a variable using the standard syntax: But use a compound-assignment operator to effect the same outcome with the simpler syntax: Compound assignment operators provide a shorter syntax to assign the results of the arithmetic and bitwise operators.
Use compound assignment: Category: Style: Subcategory: Language rules (expression-level preferences) Applicable languages: C# and Visual Basic: Options: dotnet_style_prefer_compound_assignment: Property Value; Rule ID: IDE0074: Title: Use coalesce compound assignment: Category: Style: Subcategory: Language rules (expression-level preferences)
The first = is an assignment. So we assign the right part to the dictionary. Now for the right part: Me.demandas2.Item(label3 = label) = (dictionary.Item(label3) - 1) The = between the two expressions is a comparison, so it returns a Boolean. So the supposed "dictionary" is assigned a boolean value.
Demonstrating the ^= Compound Assignment Operator. Figure 4.9 calculates a power of 2 using the exponentiation assignment operator. In line 8, we take advantage of a Visual Basic feature that allows variable initialization to be incorporated into a declaration. In this case, we initialize variable exponent to the value of exponentTextBox's Text ...
A variety of compound assignment operations can be performed using operators of this type. For a list of these operators and more information about them, see Assignment Operators (Visual Basic). The concatenation assignment operator (&=) is useful for adding a string to the end of already existing strings, as the following example illustrates.
This style rule concerns with the use of compound assignments. The option value specifies whether or not they are desired. IDE0074 is reported for coalesce compound assignments and IDE0054 for other compound assignments. \n dotnet_style_prefer_compound_assignment \n
Remarks. The element on the left side of the &= operator can be a simple scalar variable, a property, or an element of an array. The variable or property cannot be ReadOnly. The &= operator concatenates the String expression on its right to the String variable or property on its left, and assigns the result to the variable or property on its left.
There is an IDE0054 "Use compound assignment" hint for level = level - 1, but this doesn't make sense in an object initializer. The text was updated successfully, but these errors were encountered: All reactions. ...
Let d be an int-array and f(int) some function. In the first assignment below, f is called twice. In the second assignment, it is called only once. So the use of the compound operator is more efficient. d[f(5)]= d[f(5)] + 1; d[f(5)] += 1; There is even more of a difference between using += instead of = if one considers side effects. Evaluation of
SOLUTION: val += 5. Posted in Learn To Code, Solution Maps, Visual Basic. ← Write a statement using a compound assignment operator to subtract 10 from minutes_left (an integer variable that has already been declared and initialized). Write a statement that increments the value of the int variable total by the value of the int variable amount ...
Update the value of a variable by using compound assignment operators. Write while, for, and do iteration statements. Step through a do statement and watch as the values of variables change. Chapter 4, "Using decision statements," demonstrated how to use the if and switch constructs to run statements selectively. In this chapter, you'll ...
CHAPTER 5 Using compound assignment and iteration statements After completing this chapter, you will be able to: Update the value of a variable by using compound assignment operators. Write while, … - Selection from Microsoft Visual C# Step by Step, Ninth Edition [Book]
Using compound assignment and iteration statements After completing this chapter, you will be able to: Using compound assignment operators Writing while statements Writing do statements Chapter 4 demonstrates … - Selection from Microsoft Visual C# 2013 Step by Step [Book] ... Get Microsoft Visual C# 2013 Step by Step now with the O'Reilly ...