Navigate Condition in COBOL

This condition is stated by using the NOT keyword.
If NOT is given in front of condition and condition is true, then the output of the condition will be false.

Navigate condition syntax is:

IF NOT [CONDITION]
COBOL Statements
END-IF.

Example : Program to demonstrate navigate condition

IDENTIFICATION DIVISION.
PROGRAM-ID. NC.

DATA DIVISION.
   WORKING-STORAGE SECTION.
   01 N1 PIC 9(2) VALUE 65.
   01 N2 PIC 9(3) VALUE 89.

PROCEDURE DIVISION.
   A000-FIRST-PARA.

   IF NOT N1 IS GREATER THAN N2 THEN
      DISPLAY 'IF-BLOCK'
   ELSE
      DISPLAY 'ELSE-BLOCK'
   END-IF.

STOP RUN.

Output:
IF-BLOCK

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Navigate Condition

Example : Program to demonstrate navigate condition