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OUTPUT (after running):
Enter name, age and
salary: Rajiv
41
82000.00
Enter name, age and
salary: Ajay
52
52000.00
More records (y/n)? y  
 
Solution 3(b):
            #include
            #include
            void main( )
            {
      FILE *fp;
      char name[30];
      int age;
      float salary;
      clrscr( );
      if ((fp = fopen(“test4.dat”, “r”)) = =NULL)
       {
                  printf(“\n Cannot open file”);
                  exit(1);
      }
      while ( fscanf(fp, “%s%d%f”, name, &age, &salary)!= EOF)
                  printf(“%s\t%d\t%f \n”, name, age, salary);
      fclose(fp);
      getch( );
      }
OUTPUT (after running):
Rajiv
41
82000.00
Ajay
52
52000.00
Example
 
4: Write a C program to
(a)  
Write an array of 8 elements to a file.
(b)  
Write a structure to a file.
(c)  
Read a structure from a file.
Solution 4(a):
        #include
        #include
        void main( )
        {
            FILE *fp;
            int a[8], i;
            clrscr( );
        if ((fp = fopen(“test.dat”, “wb”)) = =NULL)
         {

---

                printf(“\n Cannot open file”);
                exit(1);
         }
        printf(“\n Enter 8 numbers:”);
        for (i=0; i<8; i++)
            scanf(“%d”, &a[i]);
         fwrite(a, sizeof(a), 1, fp);
         fclose(fp);
        }