Reads a string and an integer from the keyboard and writes them to a disk file. Then reads the file and displays the information on the screen. - C String

C examples for String:String Console Input

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Description

Reads a string and an integer from the keyboard and writes them to a disk file. Then reads the file and displays the information on the screen.

Demo Code

#include <stdio.h>
#include <io.h>
#include <stdlib.h>

int main(void)
{
   FILE *fp;/*from   www .j av  a  2  s  .c  o  m*/
   char s[80];
   int t;

   if ((fp = fopen("test", "w")) == NULL) {
      printf("Cannot open file.\n");
      exit(1);
   }

   printf("Enter a string and a number: ");
   fscanf(stdin, "%s%d", s, &t); /* read from keyboard */

   fprintf(fp, "%s %d", s, t); /* write to file */
   fclose(fp);

   if ((fp = fopen("test", "r")) == NULL) {
      printf("Cannot open file.\n");
      exit(1);
   }

   fscanf(fp, "%s%d", s, &t); /* read from file */
   fprintf(stdout, "%s %d", s, t); /* print on screen */

   return 0;
}

Result


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