Conditional Statement in COBOL

Introduction

• The result of conditional statements are always true or false.
• These statements change the flow of execution depending on the certain conditions defined by the programmer.

Types of conditional statements

Following are the various types of conditional statements:
1) IF condition statement
2) Relation condition
3) Sign condition
4) Class condition
5) Condition-name condition
6) Navigate condition
7) Combined condition

IF condition statement

• This statement checks the condition. If the condition is true, then IF block is executed. If the condition is false, then the ELSE block is executed.
• To end the IF block END-IF is used. Instead of END-IF a period can be used.
• The use of END-IF is always preferable for the multiple IF blocks.
• If the IF block is occurring inside another IF block, then it is known as nested IF.

Syntax:


Output:
IF BLOCK OF LOOP 1
ELSE BLOCK OF IN LOOP 2