An If...Else alternative form of the statement permits action on both False and True conditions. The format is given below:

Here, depending on the results of the condition test,the script takes alternative courses of action. If the expression is evaluated as True, then the immediately following set of statements is executed and if the expression is evaluated as False, the set of statements following the Else is executed. Thus, one of two different processing actions take place at the same time.

The script below is an example of the If...Else form of condition testing.

Two or more than two If statements can be nested and that is, an If statement can appear inside an If statement, which can appear inside an If statement, and so forth. In a general form these nested If statements appear as below.