Cobol Tutorial

 
 
 

Basic Programming

Fahrenheit into temperature - C = (5/9) * (f - 32) Use of Control Break clause Print employee detail Draws an ellipse or a circle Binary search using files Generating date and time Describe Functionality of table by using File

General Programs

Evaluate gender from user and print Display input number is prime or not Display on printer message entered by user Displays message entered by user on printer Merging two files in a single file Generate arithmetic operation - evaluate clause Use of Sign clause Create attendence sheet Displays on printer - divide operation quotient Binary search on student name, print roll number job appl checking candidate is eligible or not Read data from input file and move to output file Print account report Purchase and rebate amount payslip Example of string and unstring Describe Functionality of two dimension table Insert, delete, update, view in index file Display the pattern of square School management system

Mathematical Program

Print bill report Use of move clause for numeric values Use multiple array Inventory transactions Sort records of file Displays alphanumeric char on screen graphic mode Student details using relative file Converting integer to its number of words Calculate Total percentage Classfor each student Edit character Display pattern of numbers in reverse pattern User input data and stores it in to the file Multiplication table Generate sales register

Sorting Programs

Store content in file,record of field - other file Use of Tables with INPUT clause Check student is pass or fail i/p result from user Calculate monthly sales amount -sequential access Sescribes how to use Sort technique Declares data to the compiler Input record into file using extend mode Draw a line Print addition of two nos and sum is third or not Use of perform verbs Bank Report depending upon user choice Create result statement for given semester Search name from file display roll no of student Generating julian date

Clause

Describe Functionality of Relative File Use of evaluate clause Describe use of IF CONDITION and PRINT Calculate Total percentage Class for each student Displays alphanumeric character in graphics mode Reads in states until end of data Read student details from file - read operation Evaluates arithmetic expression - stores result Print presence report based on provided data Use of Inspect clause Check entered date is valid birth date or not Draws rectangle filled with one color Search perticular record Find age from accepted date from user Merge 2 files with students records Check two same condition name is allow or not Arithmetic operations add,sub,div and mul Display on Console a message entered by user Display message entered by user on console Generate student mark sheet using file r/w op Check if a number is a fibonacci or not

File Programs

Use of Redefine clause Create marksheet of student Use of leading and trailing Sequential search Class condition Student detail management using indexed file Print mark sheet of a student with grades Find yearly depreciation Unstring word Find smallest quotation for given item Write records reside in i/p file- show on screen Sum of series 1 + 1/4 + 1/9 Using sign test for numeric value

Search Programs

Enter value is alphabetic,numeric,alphanumeric Use of EVALUATE clause Count number of char Date manipulation Bubble sort DOS standard o/p device Create the index file Draw polygon Gross salary, deduction, net salary of employee Count character for no of times in input string Display triangle of numbers FILE Read Operation Add two numbers Generate sales report item wise

String Programs

Includes external source file in current file IF-ELSE Clause Group wise stock summary Attendence Report of Employees SORTING Operation Add 2 or more operands and stores result Relative file - insertion,deletion,updation, print Divides one or more operands by another
 

PROGRAM OF STUDENT DETAILS USING RELATIVE FILE

 
       IDENTIFICATION DIVISION.
        PROGRAM-ID. PROG1.

       ENVIRONMENT DIVISION.
        INPUT-OUTPUT SECTION.
         FILE-CONTROL.
          SELECT INP ASSIGN TO DISK
          ORGANIZATION IS RELATIVE
          ACCESS MODE IS  SEQUENTIAL.


          SELECT INP1 ASSIGN TO DISK
          ORGANIZATION IS RELATIVE
          ACCESS MODE IS  RANDOM
          RELATIVE KEY IS R-NO.


       DATA DIVISION.
        FILE SECTION.
         FD INP
         LABEL RECORDS ARE STANDARD
         VALUE OF FILE-ID \"INPUT1\".
          01 REC1.
            02 ROLLNO1    PIC 99.
            02 NAME1      PIC X(20).
            02 ADDRESS1   PIC X(20).
         FD INP1
         LABEL RECORDS ARE STANDARD
         VALUE OF FILE-ID \"INPUT1\".
          01 REC2.
            02 ROLLNO2    PIC 99.
            02 NAME2      PIC X(20).
            02 ADDRESS2   PIC X(20).


       WORKING-STORAGE SECTION.
        01 EOF      PIC X VALUE \"Y\".
        01 CHOICE   PIC X.
        01 ANS      PIC X VALUE \"Y\".
        01 R-NO     PIC 99.

       PROCEDURE DIVISION.
        START1.
      *   OPEN I-O INP.

         PERFORM UNTIL ANS=\"N\"

         DISPLAY \" ENTER YOUR CHOICE \"
         DISPLAY \"1) ENTER NEW STUDENT RECORD\"
         DISPLAY \"2) SHOW ALL STUDENT RECORDS\"
         DISPLAY \"3) UPDATE STUDENT RECORD\"
         DISPLAY \"4) DELETE STUDENT RECORD\"
         ACCEPT CHOICE 
               EVALUATE CHOICE 
                    WHEN 1 PERFORM INSERTION
                    WHEN 2 PERFORM READ-PARA
                    WHEN 3 PERFORM UPDATE-PARA
                    WHEN 4 PERFORM DELETE-PARA
               END-EVALUATE
               DISPLAY \"DO YOU WANT TO CONTINUE (Y/N):\"
               ACCEPT  ANS
         END-PERFORM.
         CLOSE INP.
         STOP RUN.

         INSERTION.
           OPEN OUTPUT INP .
           MOVE \"Y\" TO EOF.
           PERFORM UNTIL EOF=\"N\"
            DISPLAY \"ENTER ROLL NO :\" WITH NO ADVANCING
            ACCEPT ROLLNO1
            DISPLAY \"ENTER NAME :\" WITH NO ADVANCING
            ACCEPT NAME1
            DISPLAY \"ENTER ADDRESS :\" WITH NO ADVANCING
            ACCEPT ADDRESS1
            WRITE REC1
            DISPLAY \"ENTER MORE RECORD (Y/N):\" WITH NO ADVANCING
            ACCEPT EOF

           END-PERFORM.
           CLOSE INP.

         READ-PARA.
           OPEN INPUT INP.
           MOVE \"Y\" TO EOF.
           PERFORM UNTIL EOF=\"N\"
            READ REC1
               AT END MOVE \"Y\" TO EOF
               NOT AT AND PERFORM READ-PARA1
            END-READ
           END-PERFORM.
           CLOSE INP.
         READ-PARA1.  

          DISPLAY \"ROLL NO IS :\"ROLLNO1.
          DISPLAY \"NAME IS :\"NAME1.
          DISPLAY \"ADDRESS IS :\"ADDRESS1.


         UPDATE-PARA.
          OPEN I-O INP1.
          DISPLAY \"ENTER THE ROLL-NO : \" WITH NO ADVANCING
          ACCEPT R-NO.

         READ INP
           INVALID KEY 
               DISPLAY \"INVALID KEY !\"
           NOT INVALID KEY PERFORM UPDATE-PARA1
         END-READ.
         CLOSE INP1.

           UPDATE-PARA1.
           DISPLAY \"NAME : \" WITH NO ADVANCING
           ACCEPT NAME2
           DISPLAY \"ADDRESS : \" WITH NO ADVANCING
           ACCEPT ADDRESS2.
           REWRITE REC2.

        DELETE-PARA.
          OPEN INPUT INP1.
          DISPLAY \"ENTER ROLL-NO U WANT TO DELETE : \" WITH NO ADVANCING
          ACCEPT R-NO.
          READ INP
           INVALID KEY 
               DISPLAY \"INVALID KEY !\"
           NOT INVALID KEY 
           DELETE INP REC2
           END-READ.
           CLOSE INP1.

INPUT FILE :-
***********************
121234567890123456789012345678901234567890

11SHASHANK DESAI      NARANPURA AHMEDABAD
17HARSHAD GEDIYA      NIRNAYNAGAR CHAND.
29RAJIV MODH          NARNPURA AHMEDABAD
55HEMAL SHETH         ANKUR AHMEDABAD

OUTPUT
*************************

1 ENTER NEW STUDENT RECORD
2 SHOW ALL STUDENT RECORDS
3 UPDATE STUDENT RECORD
4 DELETE STUDENT RECORD

ENTER YOUR CHOICE
1
ENTER ROLL NO : 18
ENTER NAME:HARSHAD
ENTER ADDRESS : AHMEDABAD
ENTER MORE RECORDS (Y/N) : N

1 ENTER NEW STUDENT RECORD
2 SHOW ALL STUDENT RECORDS
3 UPDATE STUDENT RECORD
4 DELETE STUDENT RECORD

ENTER YOUR CHOICE : 2

 17 HARSHAD  CHANDLODIYA
 55 HEMAL    NARNPURA
 29 RAJIV    NAVRANGPURA
 11 SHASHANK ANKUR
 18 HARASHAD GEDIYA AHMEDABAD

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  3. Program to describe the FILE Read Operation
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  8. Divides one or more operands by another and stores the result in one or more data
  9. Program to check entered date is valid birth date or not
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  11. PROGRAM TO READ THE STUDENT DETAILS FROM THE STUDENT INFORMATION FILE USING FILE READ OPERATION
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  13. PROGRAM WHICH SEARCH THE NAME FROM THE FILE AND DISPLAY THE CORRESPONDING ROLL NO OF THE STUDENT
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  15. PROGRAM FOR GENERATING JULIAN DATE
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  18. Program to SEARCH PERTICULAR record
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