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PROGRAM FOR COMPUTE VERB:
We have to write an easy program to elaborate the COMPUTE verb.
Identification division.
Program- id. compverb.
Environment division.
Data division.
Working-storage section.
77 a pic s9(3)v9(2) value 0.
77 b pic s9(3)v9(2) value 0.
77 c pic s9(4)v9(2) value 0.
7 e-c pic +z(4).z(2).
Procedure division.
Para-1.
Display(1 1) erase.
Display(3 5) "Enter first number :".
Accept a.
Display(5 5) "Enter second number :".
Accept b.
Compute c= a+b.
Move c to e-c.
Display(15 5) "Answer = " e-c.
Stop run.
TO WRITE A QUADRATIC EQN ROOTS ARE COMPLEX IN COBOL PROGRAM
Example of If- else statement Illustration: IF QUANTITY IS NUMERIC AND QUANTITY IS POSITIVE MOVE ZERO TO ERROR-CODE. COMPUTE SALES VALUE=QUANTITY*RATE
CLOSE statement: The simplified syntax of the CLOSE statement is as shown below: CLOSE file-name-1 [WITH LOCK ] [ , file-
CLOSE STATEMENT: When the processing of a file is completed, then the file may be closed. This is completed with the help of the CLOSE-verb. The form of the CLOSE statement is
Example of File-control: The assign clause assigns a specific physical peripheral device name to a file. The physical peripheral device are machine-dependent. We use the devic
RULES OF MOVE VERB: The Data movement is managed by the rules which are as shown below: (a) The contents of the identifier - 1 or the value of the literal - 1 is moved to
what does it used
FILE-CONTROL ENTRIES FOR THE SEQUENTIAL FILES: The characteristics of each and every files handled in a program are specified in the ENVIRONMENT DIVISION and DATA DIVISION.
Evaluate is like a case statement & Evaluate stamenet can be used to replace nested Ifs. The difference b/w EVALUATE and case is that there is no 'break' is required for EVALUATE
SIMPLE MERGE VERB: Like sorting, the merging of files is often required in different commercial application. It is likely to merge two or more files with the help of one MERGE
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