Answer Posted / bala

FILE SECTION.
FD OLD-MASTER
LABEL RECORDS ARE STANDARD.
01 OLD-MASTER-REC.
05 M-ACCT-NO PIC X(5).
05 AMOUNT-DUE PIC 9(4)V99.
05 PIC X(89).
FD TRANS-FILE
LABEL RECORDS ARE STANDARD.
01 TRANS-REC.
05 T-ACCT-NO PIC X(5).
05 AMT-TRANS-IN-CURRENT-PER PIC 9(4)V99.
05 PIC X(89).
FD NEW-MASTER
LABEL RECORDS ARE STANDARD.
01 NEW-MASTER-REC.
05 ACCT-NO-OUT PIC X(5).
05 AMOUNT-DUE-OUT PIC 9(4)V99.
05 PIC X(89).
WORKING-STORAGE SECTION.
PROCEDURE DIVISION.
100-MAIN-MODULE.
PERFORM 800-INITIALIZATION-RTN.
PERFORM 600-READ-MASTER.
PERFORM 700-READ-TRANS.
PERFORM 200-COMP-RTN
UNTIL M-ACCT-NO = HIGH-VALUES
AND
T-ACCT-NO = HIGH-VALUES
PERFORM 900-END-OF-JOB-RTN.
STOP RUN.
200-COMP-RTN.
EVALUATE TRUE
WHEN T-ACCT-NO = M-ACCT-NO
PERFORM 300-REGULAR-UPDATE
WHEN T-ACCT-NO < M-ACCT-NO
PERFORM 400-NEW-ACCOUNT
WHEN OTHER
PERFORM 500-NO-UPDATE
END-EVALUATE.
300-REGULAR-UPDATE.
MOVE OLD-MASTER-REC TO NEW-MASTER-REC
COMPUTE AMOUNT-DUE-OUT = AMT-TRANS-IN-CURRENT-PER
+ AMOUNT-DUE
WRITE NEW-MASTER-REC
PERFORM 600-READ-MASTER
PERFORM 700-READ-TRANS.
400-NEW-ACCOUNT.
MOVE SPACES TO NEW-MASTER-REC.
MOVE T-ACCT-NO TO ACCT-NO-OUT.
MOVE AMT-TRANS-IN-CURRENT-PER TO AMOUNT-DUE-OUT.
WRITE NEW-MASTER-REC.
PERFORM 700-READ-TRANS.
500-NO-UPDATE.
WRITE NEW-MASTER-REC FROM OLD-MASTER-REC.
PERFORM 600-READ-MASTER.
600-READ-MASTER.
READ OLD-MASTER
AT END
MOVE HIGH-VALUES TO M-ACCT-NO
END-READ.
700-READ-TRANS.
READ TRANS-FILE
AT END
MOVE HIGH-VALUES TO T-ACCT-NO
END-READ.
800-INITIALIZATION-RTN.
OPEN INPUT OLD-MASTER
TRANS-FILE.
OPEN OUTPUT NEW-MASTER.
900-END-OF-JOB-RTN.
CLOSE OLD-MASTER
TRANS-FILE
NEW-MASTER.

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