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VB.NET TUTORIALS - VB.Net - Operators

VB.Net - Operators

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Arithmetic Operators

OperatorDescriptionExample
^Raises one operand to the power of another B^A will give 49
+Adds two operandsA + B will give 9
-Subtracts second operand from the firstA - B will give -5
*Multiplies both operands A * B will give 14
/Divides one operand by another and returns a floating point result B / A will give 3.5
\Divides one operand by another and returns an integer result B \ A will give 3
MODModulus Operator and remainder of after an integer division B MOD A will give 1

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Comparison Operators

OperatorDescriptionExample
== Checks if the values of two operands are equal or not; if yes, then condition becomes true. (A == B) is not true.
<> Checks if the values of two operands are equal or not; if values are not equal, then condition becomes true. (A <> B) is true.
> Checks if the value of left operand is greater than the value of right operand; if yes, then condition becomes true. (A > B) is not true.
< Checks if the value of left operand is less than the value of right operand; if yes, then condition becomes true. (A < B) is true.
>= Checks if the value of left operand is greater than or equal to the value of right operand; if yes, then condition becomes true. (A >= B) is not true.
<= Checks if the value of left operand is less than or equal to the value of right operand; if yes, then condition becomes true. (A <= B) is true.

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Logical/Bitwise Operators

OperatorDescriptionExample
And It is the logical as well as bitwise AND operator. If both the operands are true, then condition becomes true. This operator does not perform short-circuiting, i.e., it evaluates both the expressions. (A And B) is False.
OrIt is the logical as well as bitwise OR operator. If any of the two operands is true, then condition becomes true. This operator does not perform short-circuiting, i.e., it evaluates both the expressions. (A Or B) is True.
NotIt is the logical as well as bitwise NOT operator. Use to reverses the logical state of its operand. If a condition is true, then Logical NOT operator will make false. Not(A And B) is True.
XorIt is the logical as well as bitwise Logical Exclusive OR operator. It returns True if both expressions are True or both expressions are False; otherwise it returns False. This operator does not perform short-circuiting, it always evaluates both expressions and there is no short-circuiting counterpart of this operator. A Xor B is True.
AndAlsoIt is the logical AND operator. It works only on Boolean data. It performs short-circuiting. (A AndAlso B) is False.
OrElseIt is the logical OR operator. It works only on Boolean data. It performs short-circuiting. (A OrElse B) is True.
IsFalseIt determines whether an expression is False.
IsTrueIt determines whether an expression is True.

Bit Shift Operators

pqp & qp | qp ^ q
00000
01011
11110
10011

OperatorDescriptionExample
And Bitwise AND Operator copies a bit to the result if it exists in both operands. (A AND B) will give 12, which is 0000 1100
Or Binary OR Operator copies a bit if it exists in either operand. (A Or B) will give 61, which is 0011 1101
Xor Binary XOR Operator copies the bit if it is set in one operand but not both. (A Xor B) will give 49, which is 0011 0001
Not Binary Ones Complement Operator is unary and has the effect of 'flipping' bits. (Not A ) will give -61, which is 1100 0011 in 2's complement form due to a signed binary number.
<< Binary Left Shift Operator. The left operands value is moved left by the number of bits specified by the right operand. A << 2 will give 240, which is 1111 0000
>> Binary Right Shift Operator. The left operands value is moved right by the number of bits specified by the right operand. A >> 2 will give 15, which is 0000 1111

Assignment Operators

OperatorDescriptionExample
=Simple assignment operator, Assigns values from right side operands to left side operand C = A + B will assign value of A + B into C
+=Add AND assignment operator, It adds right operand to the left operand and assigns the result to left operand C += A is equivalent to C = C + A
-=Subtract AND assignment operator, It subtracts right operand from the left operand and assigns the result to left operand C -= A is equivalent to C = C - A
*=Multiply AND assignment operator, It multiplies right operand with the left operand and assigns the result to left operand C *= A is equivalent to C = C * A
/=Divide AND assignment operator, It divides left operand with the right operand and assigns the result to left operand (floating point division) C /= A is equivalent to C = C / A
\=Divide AND assignment operator, It divides left operand with the right operand and assigns the result to left operand (Integer division) C \= A is equivalent to C = C \A
^=Exponentiation and assignment operator. It raises the left operand to the power of the right operand and assigns the result to left operand. C^=A is equivalent to C = C ^ A
<<=Left shift AND assignment operator C <<= 2 is same as C = C << 2
>>=Right shift AND assignment operator C >>= 2 is same as C = C >> 2
&=Concatenates a String expression to a String variable or property and assigns the result to the variable or property. Str1 &= Str2 is same as
Str1 = Str1 & Str2

Miscellaneous Operators

OperatorDescriptionExample
AddressOfReturns the address of a procedure.
AddHandler Button1.Click,
AddressOf Button1_Click
AwaitIt is applied to an operand in an asynchronous method or lambda expression to suspend execution of the method until the awaited task completes.
 Dim result As res
= Await AsyncMethodThatReturnsResult()
Await AsyncMethod()
GetTypeIt returns a Type object for the specified type. The Type object provides information about the type such as its properties, methods, and events.
MsgBox(GetType(Integer).ToString())
Function ExpressionIt declares the parameters and code that define a function lambda expression. 
Dim add5 = Function(num As
 Integer) num + 5
'prints 10
Console.WriteLine(add5(5))
IfIt uses short-circuit evaluation to conditionally return one of two values. The If operator can be called with three arguments or with two arguments. 
Dim num = 5
Console.WriteLine(If(num >= 0,
"Positive", "Negative"))

Operators Precedence in VB.Net

OperatorPrecedence
AwaitHighest
Exponentiation (^)
Unary identity and negation (+, -)
Multiplication and floating-point division (*, /)
Integer division (\)
Modulus arithmetic (Mod)
Addition and subtraction (+, -)
Arithmetic bit shift (<<, >>)
All comparison operators (=, <>, <, <=, >, >=, Is, IsNot, Like, TypeOf...Is)
Negation (Not)
Conjunction (And, AndAlso)
Inclusive disjunction (Or, OrElse)
Exclusive disjunction (Xor)Lowest