Logical Operators

Logical operators are used in conditional statements to test whether one or more expressions are TRUE or FALSE.

The AND Operator

AND is used to test whether two expressions both evaluate to TRUE, as shown below:

Condition1 AND Condition2

This statement equates to TRUE only if both Condition1 AND Condition2 are TRUE. This can be illustrated using the following truth table:

Truth Table for AND Operator
Condition1	Condition2	Condition1 AND Condition2
FALSE	FALSE	FALSE
FALSE	TRUE	FALSE
TRUE	FALSE	FALSE
TRUE	TRUE	TRUE

The OR Operator

OR is used to test whether at least one of two expressions evaluates to TRUE, as shown below:

Condition1 OR Condition2

This statement equates to TRUE if either Condition1 or Condition2 (or both) is TRUE. This can be illustrated using the following truth table:

Truth Table for OR Operator
Condition1	Condition2	Condition1 OR Condition2
FALSE	FALSE	FALSE
FALSE	TRUE	TRUE
TRUE	FALSE	TRUE
TRUE	TRUE	TRUE