Visual Basic Operators

1.        Arithmetic. Operators

2.        String -Concatentate Operators

3.        Comparison Operators

4.        Logical Operators

     

Arithmetic. Operators

Operator       Operation

        ^              Exponentiation

       * /             Multiplication and division

         \               Integer division (truncates)

     Mod           Modulus

       + -             Addition and subutraction

     

Parentheses around expressions can change precedence.

String -Concatentate Operators

   To concatentate two strings, use the & symbol or the + symbol:

     

lblTime.Caption = "The current time is" & Format(Now, “hh:mm”)

txtSample.Text = "Hook this “ + “to this”

·         There are six comparison operators in Visual Basic:

Operator       Comparison

        >              Greater than

        <              Less than

       >=             Greater than or equal to

       <=             Less than or equal to

        =              Equal to

       <>             Not equal to

   The result of a comparison operation is a Boolean value (True or False).

   Three logical operators

     

Operator       Operation

      Not            Logical not

     And           Logical and

       Or             Logical or

     

   The Not operator simply negates an operand.

     

   The And operator returns a True if both operands are True. Else, it returns a False.

   The Or operator returns a True if either of its operands is True, else it returns a False.

     

·         Logical operators follow arithmetic operators in precedence.