Learn Visual Basic 6.0

2. The Visual Basic Language

Visual Basic Operators

1. The simplest operators carry out arithmetic operations. These operators in their order of precedence are:
   
   

   Operator	Operation
   ^	Exponentiation
   * /	Multiplication and division
   \	Integer division (truncates)
   Mod	Modulus
   + -	Addition and subutraction

   
   
2. Parentheses around expressions can change precedence.
   
   
3. 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"
   
   
4. 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

   
   
5. The result of a comparison operation is a Boolean value (True or False).
   
   
6. We will use three logical operators
   
   

   Operator	Operation
   Not	Logical not
   And	Logical and
   Or	Logical or

   
   
7. The Not operator simply negates an operand.
   
   
8. The And operator returns a True if both operands are True. Else, it returns a False.
   
   
9. The Or operator returns a True if either of its operands is True, else it returns a False.
   
   
10. Logical operators follow arithmetic operators in precedence.

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