By R. Hutty (auth.)
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Extra resources for Mastering COBOL Programming
Sample text
COMPOUND-CALC. DISPLAY "COMPOUND INTEREST PROGRAM". DISPLAY "TYPE IN INITIAL AMOUNT". ACCEP'T AMOUNT. DISPLAY "TYPE IN INTEREST RATE". ACCEPT RATE-OF-INTEREST. DISPLAY "TYPE IN NUMBER OF YEARS". ACCEP·r YEARS. * * COMPUTE AMOUNT-AT-END ROUNDED = AMOUNT * (1 + RATE-OF-INTEREST / 100) ** YEARS. DISPLAY "FINAL AMOUNT " AMOUNT-AT-END. s·roP RUN. 2 when zero suppression is applied. Zero suppression is specified by replacing the leading 9s in a picture by Zs. 9. 4 and when output would appear with two spaces before the 7.
A computer's collating sequence is determined by the character code used by the computer. @A-Z a-z where those to the left are 'less than' those to the right. So +is less than e 52 and M is greater than 3. When two character data-items with more than one character are compared the comparison is performed character by character from left to right. Hence, I A is less than AI and A/A is greater than A-A. 3. The program inputs two words and outputs them in order, the 'lower' first followed by the 'higher'.
5 which uses a slight variation on one of the ADD statement variations we have already looked at. However, a MOVE statement is required. 5 a program to add two numbers, using MOVE * IDENTIFICATION DIVISION. PROGRAM-ID. MOVE AND ADD. ENVIRONMENT DIVISION. DATA DIVISION. WORKING-STORAGE SEC·riON. 77 N0-1 PIC 99. 77 N0-2 PIC 99. 77 N0-3 PIC 999. PROCEDURE DIVISION. MOVE-ADD. ACCEPT N0-1. ACCEPT N0-2. MOVE 0 TO N0-3. ADD N0-1 N0-2 TO N0-3. DISPLAY N0-1 " + " N0-2 " STOP RUN. 40 23 40 + 23 " N0-3. 063 Until a number is input or moved to a data-item, its contents cannot be predicted.