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Any Questions!. Test Coming Up! Agenda Printing with Externally Described Printer Files Arrays.

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Presentation on theme: "Any Questions!. Test Coming Up! Agenda Printing with Externally Described Printer Files Arrays."— Presentation transcript:

1 Any Questions!

2 Test Coming Up!

3 Agenda Printing with Externally Described Printer Files Arrays

4 Printing with Externally Described Printer Files New addition to the select statement – FORMATFILE! select report-file assign to formatfile-filename.

5 Writing to an Externally Described Printer File Write record-name format is ‘RECORD’ eop perform print-heading End-write. (eop means end of page)

6 What is an array?

7 Example January February March April May June July August September October November December

8 Example 2 1January 3March 5May 7July 9September 11November 2February 4April 6June 8August 10October 12December

9 Example 1 January February March April May June July August September October November December

10 Coding Example 01 Month-Names. 05 Month1 PIC X(15) VALUE ‘January’. 05 Month2 PIC X(15) VALUE ‘February’. ….. 05 Month12 PIC X(15) VALUE ‘December’.

11 Coding Example - Arrays 01 Month-Names-Array. 05 Month-Names OCCURS 12 TIMES PIC X(15). Use Subscripts (position) to access information in arrays.

12 Example 2 1January 3March 5May 7July 9September 11November 2February 4April 6June 8August 10October 12December

13 Coding Example 01 Month-Names. 05 Month1. 10 Month1-Number PIC 9(2) VALUE 1. 10 Month1-Name PIC X(15) VALUE ‘January’. 05 Month2. 10 Month2-Number PIC 9(2) VALUE 2. 10 Month2-Name PIC X(15) VALUE ‘February’ ….. 05 Month12. 10 Month12-Number PIC 9(2) VALUE 12. 05 Month12-Number PIC X(15) VALUE ‘December’.

14 Coding Example - Arrays 01 Month-Names-Array. 05 Month-Entries OCCURS 12 TIMES. 10 Month-Number PIC 9(2). 10 Month-Name PIC X(15). Use Subscripts (position) to access information in arrays.

15 Loading Arrays - Redefines 01 Month-Names. 05 Month-String PIC X(36) VALUE ‘JanFebMarAprMayJunJul… 05 Month-Entries REDEFINES Month-String OCCURS 12 TIMES PIC X(3).

16 Loading Arrays - Redefines MOVE ‘January’ TO Month-Entries (1). MOVE ‘February’ TO Month-Entries (2). MOVE ‘March’ TO Month-Entries (3). MOVE ‘April’ TO Month-Entries (4). MOVE ‘May’ TO Month-Entries (5). MOVE ‘June’ TO Month-Entries (6). MOVE ‘July’ TO Month-Entries (7).

17 Loading Arrays – Read from a File Create a physical file (Month-File) with the fields: –Month Number –Month Name Create an array as follows 01 Month-Table. 05 Month-Entries occurs 12 times. 10 Month-Number PIC 9(2). 10 Month-Name PIC X(15).

18 Loading Arrays – Read from a File PERFORM 120-Read-Table-Rtn VARYING Sub FROM 1 by 1 UNTIL Sub > 12. 120-Read-Table-Rtn. READ Month-File into Month-Entries (sub) AT END DISPLAY ‘Not enough table records’ END-READ.

19 Searching Arrays January February March April May June July August September October November December

20 Searching Arrays 01 Sub PIC 9(2). 01 Month-Names-Array. 05 Month-Names OCCURS 12 TIMES PIC X(15). MOVE 11 TO Sub. MOVE Month-Names (sub) to Month-Name-Out.

21 Searching Arrays 1January 3March 5May 7July 9September 11November 2February 4April 6June 8August 10October 12December

22 Searching Arrays – Using Sub- Scripts 01 Sub PIC 9(2). 01 Month-Names-Array. 05 Month-Entries OCCURS 12 TIMES. 10 Month-Number PIC 9(2). 10 Month-Name PIC X(15). PERFORM 120-Get-Month-Name Until Month-Number (Sub) = 11. MOVE Month-Name (SUB) to Month-Name-Out. 120-Get-Month-Name. Add 1 to Sub.

23 Searching Arrays – Using Indexes and the Search Verb 01 Month-Names-Array. 05 Month-Entries OCCURS 12 TIMES INDEXED BY Sub. 10 Month-Number PIC 9(2). 10 Month-Name PIC X(15). SET Sub to 1. SEARCH Month-Entries AT END MOVE ‘Error’ to Month-Name-out WHEN Month-Number (Sub) = 11 MOVE Month-Name (Sub) to Month-Name-Out END-SEARCH.

24 Searching Arrays – Sorted Arrays 1January 2February 3March 4April 5May 6June 7July 8August 9September 10October 11November 12December

25 Searching Arrays – Sorted Arrays (Binary Sort) 01 Month-Names-Array. 05 Month-Entries OCCURS 12 TIMES INDEXED BY Sub ASCENDING KEY IS MONTH-NUMBER. 10 Month-Number PIC 9(2). 10 Month-Name PIC X(15). SEARCH ALL Month-Entries AT END MOVE ‘Error’ to Month-Name-out WHEN Month-Number (Sub) = 11 MOVE Month-Name (Sub) to Month-Name-Out END-SEARCH.

26 26 Review of some Basics

27 27 Moving Data Basics The MOVE

28 28 MOVE ident1 TO ident2 It copies the contents of a field, variable, or literal into another field or variable The fields and variables must be defined in the data division accordingly Ident1 = any variable defined in the data division or any literal Literal: Numeric constant such as -1.25 and 350.456 Alphanumeric constant such as ‘JOHN’ and ’OFFICE’

29 29 MOVE ident1 TO ident2 Ident2= any variable defined in the data division or any literal Ident1is called the sending variable Ident2 is called the receiving variable Ident1 and Ident2 are expected to be of the same type (both alphanumeric or both numeric) Size can be different but programmer should be aware of abnormal results

30 30 MOVE Examples WORKING-STORAGE SECTION. ==== 01 WORKING-VARIABLES. 05 PLANT1-DEPART PIC X(4). 05 PLANT2-DEPART PIC X(6). 05 PLANT1-STAFF PIC 999. 05 PLANT1-SALARY PIC 9999V99. 05 PLANT2-STAFF PIC 999. 05 PLANT2-SALARY PIC 9999V99. PROCEDURE DIVISION. === MOVE ‘OFFI’ TO PLANT1-DEPART MOVE ‘PRODUC’ TO PLANT2-DEPART MOVE PLANT2-STAFF TO PLANT1-STAFF === MOVE 257.89 TO PLANT1-SALARY MOVE 340 TO PLANT2-STAFF MOVE PLANT1-SALARY TO PLANT2-SALARY

31 31 MOVE SENDING-FIELD TO RECEIVING-FIELD Content of the Receiving field after MOVE execution

32 32 MOVE SENDING-FIELD TO RECEIVING-FIELD Contents of Receiving fields after MOVE execution

33 33 NUMERIC EDITED FIELDS Variable used as a MASK that present the contents of a variable in a meaningful way to the user Used as output variables: sent to a printer, monitor, etc. Basic editing: $ decimal point sign suppression of leading zeros

34 34 NUMERIC EDITED FIELDS 01 DETAIL-LINE. 05 FILLER PIC X(8) VALUE SPACES. 05 DET-NAME PIC X(25). 05 FILLER PIC XX VALUE SPACES. 05 DET-HOURS PIC ZZZ. 05 FILLER PIC XX VALUE SPACES. 05 DET-PAY PIC $Z,ZZZ.99. 05 FILLER PIC X(92) VALUE SPACES. PROCEDURE DIVISION. === ==== PIC ZZZ Any leading zero is replaced by blanks after the MOVE PIC ZZZ Any leading zero is replaced by blanks after the MOVE 3 2 MOVE 032 TO DET-HOURS DET-HOURS

35 35 NUMERIC EDITED FIELDS AND THE MOVE STATEMENT 01 DETAIL-LINE. 05 FILLER PIC X(8) VALUE SPACES. 05 DET-NAME PIC X(25). 05 FILLER PIC XX VALUE SPACES. 05 DET-HOURS PIC ZZZ. 05 FILLER PIC XX VALUE SPACES. 05 DET-PAY PIC $Z,ZZZ.99. 05 FILLER PIC X(92) VALUE SPACES. PROCEDURE DIVISION. === ==== PIC $Z,ZZZ.99 Any leading zero is replaced by blanks and $ inserted to the left after the MOVE PIC $Z,ZZZ.99 Any leading zero is replaced by blanks and $ inserted to the left after the MOVE $ 985.27 MOVE 098527 TO DET-PAY MOVE 198527 TO DET-PAY $1,985.27 DET-PAY

36 36 Moving Record To Record 01 PRINT-LINE PIC X(132). WORKING-STORAGE SECTION. 01 HEADING-LINE. 05 FILLER PIC X(12) VALUE 'EMPLOYEE... '. 05 FILLER PIC X(110) VALUE SPACES. PROCEDURE DIVISION. MOVE HEADING-LINE TO PRINT-LINE The entire content of PRINT-LINE is moved to HEADING-LINE Size of both records should be the same; otherwise, truncation occurs The content is moved as ALPHANUMERIC: from left to right

37 37 PERFORM Basics The PERFORM…UNTIL

38 38 The PERFORM UNTIL Executes a paragraph (group of statements) until a condition is met The condition must be changed within the paragraph in order to allow the loop end Format: PERFORM paragraph-name UNTIL condition

39 39 PERFORM….UNTIL is equivalent to DO…WHILE MOVE ‘Y’ TO FLAG PERFORM UPDATE-FILE UNTIL FLAG = ‘N’ ==== UPDATE-FILE. COMPUTE SALES-TOTAL = SALES-WEEK + PREVIOUS-YEAR IF SALES-TOTAL MOVE ‘N’ TO FLAG. = ===

40 40 PROCESS APOST. IDENTIFICATION DIVISION. PROGRAM-ID. PAYREP. AUTHOR. ANDRE BERNS. DATE-WRITTEN. JAN/13. DATE-COMPILED. ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL. SELECT PAYROLL-FILE ASSIGN TO DATABASE-PT001F ORGANIZATION IS SEQUENTIAL. SELECT PRINT-FILE ASSIGN TO PRINTER. DATA DIVISION. FILE SECTION. FD PAYROLL-FILE RECORD CONTAINS 45 CHARACTERS DATA RECORD IS EMPLOYEE-IN. 01 EMPLOYEE-IN. 05 EMP-NAME PIC X(25). 05 EMP-HOURS PIC 9(03). 05 EMP-RATE PIC 99V9 USAGE COMP-3. 05 EMP-DEP PIC X(15). FD PRINT-FILE RECORD CONTAINS 132 CHARACTERS DATA RECORD IS PRINT-LINE. 01 PRINT-LINE PIC X(132). WORKING-STORAGE SECTION. 01 HEADING-LINE. 05 FILLER PIC X(12) VALUE 'EMPLOYEE... '. 05 FILLER PIC X(110) VALUE SPACES. 01 DETAIL-LINE. 05 FILLER PIC X(8) VALUE SPACES. 05 DET-NAME PIC X(25). 05 FILLER PIC XX VALUE SPACES. 05 DET-HOURS PIC ZZZ. 05 FILLER PIC XX VALUE SPACES. 05 DET-PAY PIC $Z,ZZZ.99. 05 FILLER PIC X(92) VALUE SPACES. 77 EOF-FLAG PIC X VALUE SPACES.

41 41 PROCEDURE DIVISION. 00-MAIN. OPEN INPUT PAYROLL-FILE OUTPUT PRINT-FILE. READ PAYROLL-FILE AT END MOVE 'N' TO EOF-FLAG END-READ. PERFORM HEADER-LINE PERFORM PROCESS-RECORDS UNTIL EOF-FLAG = 'N'. CLOSE PAYROLL-FILE PRINT-FILE. STOP RUN. HEADER-LINE. MOVE HEADING-LINE TO PRINT-LINE. WRITE PRINT-LINE. PROCESS-RECORDS. MOVE EMP-NAME TO DET-NAME MOVE EMP-HOURS TO DET-HOURS COMPUTE DET-PAY = EMP-HOURS * EMP-RATE MOVE DETAIL-LINE TO PRINT-LINE WRITE PRINT-LINE READ PAYROLL-FILE AT END MOVE 'N' TO EOF-FLAG END-READ. Putting the pieces together

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