Answer / srinivasa yadav

CALL BY VALUE: THE MEMORY AREA FOR ACTUAL AND FORMAL
PARAMETERS ARE DIFFERENT.
CALL BY REFERENCE: THE MEMORY AREA FOR ACTUAL AND FORMAL
PARAMETERS ARE SAME. SO WHATEVER VALUES HAS CHANGED IN
FORMAL PARAMETERS WILL BE EFFECTED TO ACTUAL PARAMETERS.

Answer / pradeep reddy

call by reference is a defoult if we change farmal
parameters then actual parameters also get changed..
call by value: its user defined if we change farmal
parameters not effected actual parameters...

Answer / raghunathareddy

call by value means intialize the vatriable..cal by ref means
calling the reference....

I have PS flat file with 14 records. I want to read from 4th to 9th record and want to write those 6 records (4th record to 9th record) to another PS file (output file). there is no key defined in the input file. I just want read a certain Consecutive records. can any one please give me the procedure division Coding for this. I have coded the below coding but the READ-PARA is performing only 1 time even though I have 14 records in my input file (i.e FILE-1): PROCEDURE DIVISION. A000-SECTION. MOVE 0 TO I. OPEN INPUT FILE-1. IF CHECK-KEY1 > 0 DISPLAY "OPEN ERROR FOR FILE-1, CODE IS:" CHECK-KEY1 END-IF. OPEN EXTEND NEWFILE-1 IF CHECK-KEY3 > 0 DISPLAY "OPEN ERROR FOR NEWFILE-1 COD IS" CHECK-KEY3 END-IF. PERFORM READ-PARA THRU EXIT-PARA UNTIL EOF-REC = 'YES'. DISPLAY " FINALLY OUT OF LOOP" CLOSE FILE-1 CLOSE NEWFILE-1 STOP RUN. READ-PARA. ADD 1 TO I READ FILE-1 AT END MOVE 'YES' TO EOF-REC IF I > 3 AND < 10 PERFORM WRITE-PARA ELSE DISPLAY "NOT IN RANGE" END-IF. EXIT-PARA. EXIT. WRITE-PARA. WRITE NEW-REC FROM FILE1-REC.

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