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Editorial Team
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Asked: 2026-05-23T11:11:56+00:00

I wonder, what do is wrong with my code because when I compile it

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I wonder, what do is wrong with my code because when I compile it the error in the following lines:

hello.cob: In paragraph ‘DADOS’:
hello.cob:25: Error: syntax error, unexpected ‘(‘, expecting WORD
hello.cob: In paragraph ‘FIM’:
hello.cob:31: Error: syntax error, unexpected ‘(‘

Here the source of my program:

   IDENTIFICATION   DIVISION.
   PROGRAM-ID.      TRIANG.
DATA DIVISION.

WORKING-STORAGE SECTION.
77  BASE    PIC 9(04) VALUE ZEROS.
77  ALTURA PIC 9(04) VALUE ZEROS.
77  HAREA   PIC 9(06) VALUE ZEROS.

SCREEN SECTION.
01  TELA.
02  BLANK SCREEN.
02  LINE 04 COLUMN 21 VALUE
"CALCULO DA AREA DE UM TRIANGULO".
02  LINE 06 COLUMN 15 VALUE
"AUTOR: Alexandre".
02  LINE 10 COLUMN 21 VALUE "ENTRE COM O VALOR DA ALTURA...".
02  LINE 12 COLUMN 21 VALUE "ENTRE COM O VALOR DA BASE...".
02  LINE 14 COLUMN 21 VALUE "ENTRE COM O VALOR DA AREA...".

PROCEDURE DIVISION.
INICIO.
    DISPLAY TELA.
DADOS.
    ACCEPT(10, 51) ALTURA.
    ACCEPT(12, 51) BASE.
CALCULO.
    MULTIPLY BASE BY ALTURA GIVING HAREA.
    DIVIDE 2 INTO HAREA.
FIM.    
    DISPLAY(14, 51) HAREA.
    DISPLAY(24, 31) "FIM DE PROGRAMA".
    STOP RUN.

Thanks for the help.

I put this 2 lines in the code:

   IDENTIFICATION   DIVISION.
   PROGRAM-ID.      TRIANG.
   DATA DIVISION.

   WORKING-STORAGE SECTION.
   77  BASE    PIC 9(04) VALUE ZEROS.
   77  ALTURA  PIC 9(04) VALUE ZEROS.
   77  HAREA   PIC 9(06) VALUE ZEROS.
   77  ESPERA  PIC 9(01) VALUE ZEROS.

   SCREEN SECTION.
   01  TELA.
   02  BLANK SCREEN.
   02  LINE 04 COLUMN 21 VALUE
   "CALCULO DA AREA DE UM TRIANGULO".
   02  LINE 06 COLUMN 15 VALUE
   "AUTOR: Alexandre".
   02  LINE 10 COLUMN 21 VALUE "ENTRE COM O VALOR DA ALTURA... ".
   02  LINE 12 COLUMN 21 VALUE "ENTRE COM O VALOR DA BASE...   ".
   02  LINE 14 COLUMN 21 VALUE "ENTRE COM O VALOR DA AREA...   ".

   PROCEDURE DIVISION.
   INICIO.
       DISPLAY TELA.
   DADOS.
       ACCEPT ALTURA AT LINE 10 COLUMN 51.
       ACCEPT BASE AT LINE 12 COLUMN 51.
   CALCULO.
       MULTIPLY BASE BY ALTURA GIVING HAREA.
       DIVIDE 2 INTO HAREA.
   FIM.
       DISPLAY HAREA LINE 14 COLUMN 51.
       ACCEPT ESPERA AT LINE 0 COLUMN 0.
       DISPLAY "FIM DE PROGRAMA" LINE 24 COLUMN 31.
       STOP RUN.

Added

77  ESPERA  PIC 9(01) VALUE ZEROS.

and 

ACCEPT ESPERA AT LINE 0 COLUMN 0.

but the result is 000000

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1 Answer

  1. Editorial Team

    I got the program to work. Almost. I don’t know how to keep the screen up when the program terminates, so the result is never visible, but at least it is possible to run the program and put in the first two numbers:

           IDENTIFICATION   DIVISION.
       PROGRAM-ID.      TRIANG.
       DATA DIVISION.

       WORKING-STORAGE SECTION.
       77  BASE    PIC 9(04) VALUE ZEROS.
       77  ALTURA PIC 9(04) VALUE ZEROS.
       77  HAREA   PIC 9(06) VALUE ZEROS.
       77  DUMMY  PIC 9(01) VALUE ZEROS.

       SCREEN SECTION.
       01  TELA.
       02  BLANK SCREEN.
       02  LINE 04 COLUMN 21 VALUE
       "CALCULO DA AREA DE UM TRIANGULO".
       02  LINE 06 COLUMN 15 VALUE
       "AUTOR: Alexandre".
       02  LINE 10 COLUMN 21 VALUE "ENTRE COM O VALOR DA ALTURA...".
       02  LINE 12 COLUMN 21 VALUE "ENTRE COM O VALOR DA BASE...".
       02  LINE 14 COLUMN 21 VALUE "ENTRE COM O VALOR DA AREA...".

       PROCEDURE DIVISION.
       INICIO.
           DISPLAY TELA.
       DADOS.
           ACCEPT ALTURA AT LINE 10 COLUMN 51.
           ACCEPT BASE AT LINE 12 COLUMN 51.
       CALCULO.
           MULTIPLY BASE BY ALTURA GIVING HAREA.
           DIVIDE 2 INTO HAREA.
       FIM.
           DISPLAY HAREA LINE 14 COLUMN 51.
           DISPLAY "FIM DE PROGRAMA" LINE 24 COLUMN 31.
           ACCEPT DUMMY AT LINE 1 COLUMN 1.
           STOP RUN.

    A much cleaner better version:

           IDENTIFICATION   DIVISION.
   PROGRAM-ID.      TRIANG.
   DATA DIVISION.

   WORKING-STORAGE SECTION.
   77  BASE    PIC 9(04) VALUE ZEROS.
   77  ALTURA PIC 9(04) VALUE ZEROS.
   77  HAREA   PIC 9(07) VALUE ZEROS.
   77  AGAIN   PIC X VALUE 'N'.

   SCREEN SECTION.
   01  TELA.
   02  BLANK SCREEN.
   02  LINE 04 COLUMN 21 VALUE
   "CALCULO DA AREA DE UM TRIANGULO".
   02  LINE 06 COLUMN 15 VALUE
   "AUTOR: Alexandre".
   02  LINE 10 COLUMN 21 VALUE "ENTRE COM O VALOR DA ALTURA [____]".
   02  LINE 10 COLUMN 50 PIC ZZZ9 Using ALTURA.
   02  LINE 12 COLUMN 21 VALUE "ENTRE COM O VALOR DA BASE...[____]".
   02  LINE 12 COLUMN 50 PIC ZZZ9 Using BASE.
   02  LINE 14 COLUMN 21 VALUE "            VALOR DA AREA..".
   02  LINE 14 COLUMN 48 PIC ZZZZZZ9 From HAREA.
   02  LINE 16 COLUMN 21 VALUE "                    FINIS...[N]".
   02  LINE 16 COLUMN 50 PIC X Using AGAIN.

   PROCEDURE DIVISION.
   INICIO.
       DISPLAY TELA.
       PERFORM SCREENS UNTIL AGAIN  = 'Y'
       STOP RUN.
   SCREENS.
       ACCEPT TELA.
       MULTIPLY BASE BY ALTURA GIVING HAREA.
       DIVIDE 2 INTO HAREA.
       DISPLAY TELA.
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