IDENTIFICATION DIVISION. PROGRAM-ID. HW15RG. AUTHOR. RACHEL GRAHAM. DATE-WRITTEN. 03-09-2019. DATA DIVISION. WORKING-STORAGE SECTION. 01 CURRENT-DATE. 05 CURRENT-YEAR PIC 99. 05 CURRENT-MONTH PIC 99. 05 CURRENT-DAY PIC 99. 01 WS-FORMATTED-DATE. 05 WS-FORMATTED-DATE-MM PIC X(02). 05 FILLER PIC X(01) VALUE '/'. 05 WS-FORMATTED-DATE-DD PIC X(02). 05 FILLER PIC X(01) VALUE '/'. 05 WS-FORMATTED-DATE-YY PIC X(02). 01 ALPHABET-TABLE-DATA. 05 FILLER PIC X(02) VALUE 'Aa'. 05 FILLER PIC X(02) VALUE 'Bb'. 05 FILLER PIC X(02) VALUE 'Cc'. 05 FILLER PIC X(02) VALUE 'Dd'. 05 FILLER PIC X(02) VALUE 'Ee'. 05 FILLER PIC X(02) VALUE 'Ff'. 05 FILLER PIC X(02) VALUE 'Gg'. 05 FILLER PIC X(02) VALUE 'Hh'. 05 FILLER PIC X(02) VALUE 'Ii'. 05 FILLER PIC X(02) VALUE 'Jj'. 05 FILLER PIC X(02) VALUE 'Kk'. 05 FILLER PIC X(02) VALUE 'Ll'. 05 FILLER PIC X(02) VALUE 'Mm'. 05 FILLER PIC X(02) VALUE 'Nn'. 05 FILLER PIC X(02) VALUE 'Oo'. 05 FILLER PIC X(02) VALUE 'Pp'. 05 FILLER PIC X(02) VALUE 'Qq'. 05 FILLER PIC X(02) VALUE 'Rr'. 05 FILLER PIC X(02) VALUE 'Ss'. 05 FILLER PIC X(02) VALUE 'Tt'. 05 FILLER PIC X(02) VALUE 'Uu'. 05 FILLER PIC X(02) VALUE 'Vv'. 05 FILLER PIC X(02) VALUE 'Ww'. 05 FILLER PIC X(02) VALUE 'Xx'. 05 FILLER PIC X(02) VALUE 'Yy'. 05 FILLER PIC X(02) VALUE 'Zz'. 01 FILLER REDEFINES ALPHABET-TABLE-DATA. 05 ALPHABET-TABLE OCCURS 26 TIMES INDEXED BY C. 10 UPPER-CHAR PIC X(01). 10 LOWER-CHAR PIC X(01). 01 ALPHABET-NUM PIC 99 VALUE ZEROS. 01 ALPHABET-CHAR PIC X. 01 WS-MONTH-TABLE-DATA. 05 FILLER PIC X(11) VALUE '01JANUARY '. 05 FILLER PIC X(11) VALUE '02FEBRUARY '. 05 FILLER PIC X(11) VALUE '03MARCH '. 05 FILLER PIC X(11) VALUE '04APRIL '. 05 FILLER PIC X(11) VALUE '05MAY '. 05 FILLER PIC X(11) VALUE '06JUNE '. 05 FILLER PIC X(11) VALUE '07JULY '. 05 FILLER PIC X(11) VALUE '08AUGUST '. 05 FILLER PIC X(11) VALUE '09SEPTEMBER'. 05 FILLER PIC X(11) VALUE '10OCTOBER '. 05 FILLER PIC X(11) VALUE '11NOVEMBER '. 05 FILLER PIC X(11) VALUE '12DECEMBER '. 01 FILLER REDEFINES WS-MONTH-TABLE-DATA. 05 MONTH-TABLE OCCURS 12 TIMES INDEXED BY M. 10 MONTH-NUM PIC X(02). 10 MONTH-NAME PIC X(09). 01 MONTH-SUB PIC 99. 01 CHAR PIC XX. 88 VALIDCHAR VALUE "A" THRU "Z", "a" THRU "z". 01 SWITCH PIC X(03). 01 Y2KDATE. 05 Y2KYEAR PIC 9(04). 05 Y2KMONTH PIC 99. 05 Y2KDAY PIC 99. 01 FORMAT-Y2K. 05 FORMAT-MONTH PIC X(09). 05 FORMAT-DAY PIC X(02). 05 FILLER PIC X(02) VALUE ' ,'. 05 FORMAT-YEAR PIC X(04). PROCEDURE DIVISION. 0000-DRIVER. PERFORM 0100-INITIALIZE. PERFORM 1000-CHAR-TEST. PERFORM 1600-MONTH-DATE. PERFORM 9000-CLOSE. GOBACK. 0100-INITIALIZE. ACCEPT CURRENT-DATE FROM DATE. MOVE CURRENT-YEAR TO WS-FORMATTED-DATE-YY. MOVE CURRENT-MONTH TO WS-FORMATTED-DATE-MM. MOVE CURRENT-DAY TO WS-FORMATTED-DATE-DD. DISPLAY 'HW15 RACHEL GRAHAM ' WS-FORMATTED-DATE. PERFORM VARYING C FROM 1 BY 1 UNTIL C > 26 DISPLAY UPPER-CHAR(C) LOWER-CHAR(C) END-PERFORM. DISPLAY "--". PERFORM 1500-ACCEPT. 1000-CHAR-TEST. IF CHAR = ' ' THEN PERFORM 1300-NO-CHAR ELSE IF VALIDCHAR PERFORM 1200-VALID-CHAR ELSE PERFORM 1100-INVALID-CHAR END-IF END-IF. 1100-INVALID-CHAR. DISPLAY 'CHARACTER IN: ' CHAR. DISPLAY 'NOT A LETTER IN THE ALPHABET'. DISPLAY "--". 1200-VALID-CHAR. SET C TO 1. SEARCH ALPHABET-TABLE WHEN UPPER-CHAR(C) = CHAR OR LOWER-CHAR(C) = CHAR SET ALPHABET-NUM TO C DISPLAY 'CHARACTER IN: ' CHAR DISPLAY 'LETTER ' CHAR 'IS LETTER NUMBER ' ALPHABET-NUM ' IN THE ALPHABET' DISPLAY '--' END-SEARCH. 1300-NO-CHAR. DISPLAY 'CHARACTER IN: " "' CHAR. DISPLAY 'NO CHARACTER ENTERED'. DISPLAY "--". 1500-ACCEPT. ACCEPT CHAR. 1600-MONTH-DATE. ACCEPT Y2KDATE FROM DATE YYYYMMDD. MOVE Y2KDAY TO FORMAT-DAY. MOVE Y2KYEAR TO FORMAT-YEAR. SET M TO 1. SEARCH MONTH-TABLE WHEN MONTH-NUM(M) = Y2KMONTH MOVE MONTH-NAME(M) TO FORMAT-MONTH END-SEARCH. DISPLAY 'RACHEL GRAHAM' DISPLAY 'TEST RUN ON: 'FORMAT-Y2K. 9000-CLOSE. GOBACK. STOP RUN.
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