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Condition Names in Cobol program Cobol program examples Cobol programs sample
$ SET SOURCEFORMAT"FREE"
IDENTIFICATION DIVISION.
PROGRAM-ID. Conditions.
AUTHOR. Michael Coughlan.
* An example program demonstrating the use of
* condition names (level 88's).
* The EVALUATE and PERFORM verbs are also used.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 Char PIC X.
88 Vowel VALUE "a", "e", "i", "o", "u".
88 Consonant VALUE "b", "c", "d", "f", "g", "h"
"j" THRU "n", "p" THRU "t", "v" THRU "z".
88 Digit VALUE "0" THRU "9".
88 ValidCharacter VALUE "a" THRU "z", "0" THRU "9".
PROCEDURE DIVISION.
Begin.
DISPLAY "Enter lower case character or digit. No data ends.".
ACCEPT Char.
PERFORM UNTIL NOT ValidCharacter
EVALUATE TRUE
WHEN Vowel DISPLAY "The letter " Char " is a vowel."
WHEN Consonant DISPLAY "The letter " Char " is a consonant."
WHEN Digit DISPLAY Char " is a digit."
WHEN OTHER DISPLAY "problems found"
END-EVALUATE
END-PERFORM
STOP RUN.