Even Odd Separation File Creation

Q : Write a ‘C’ Program to create a file of numbers and copy odd number into second file and even number into third file.

Solution :

#include<stdio.h>

#include<conio.h>

void main()

{

     FILE *source,*even_file,*odd_file;

     char ch;

     clrscr();

     source=fopen("test.txt","r");

     even_file=fopen("even.txt","w");

     odd_file=fopen("o

dd.txt","w");

     if(source==NULL)

          printf("\n\tUnable to open source file");

     else if(even_file==NULL)

          printf("\n\tEven file creation error");

     else if(odd_file==NULL)

          printf("\n\tOdd file creation error");

     else

     {

          while(1)

          {

              ch=fgetc(source);

              if(ch==EOF)

                   break;

              if(ch%2==0)

                   fputc(ch,even_file);

              else

                   fputc(ch,odd_file);

          }

     }

     printf("\n\tSource file content\n");

     fseek(source,0,SEEK_SET);

     while(1)

     {

          ch=fgetc(source);

          if(ch==EOF)

              break;

          printf("%c",ch);

     }

     printf("\n\tEven file content\n");

     fclose(source);

     fclose(even_file);

     fclose(odd_file);

     even_file=fopen("even.txt","r");

     odd_file=fopen("odd.txt","r");

     while(1)

     {

          ch=fgetc(even_file);

          if(ch==EOF)

              break;

          printf("%c",ch);

     }

     fclose(even_file);

     printf("\n\tODD file content\n");

     while(1)

     {

          ch=fgetc(odd_file);

          if(ch==EOF)

              break;

          printf("%c",ch);

     }

     fclose(odd_file);

     getch();

}

Download Source Code

Next Question