Question

Write a line of code that will declare a file variable named data.

Assuming that the variable data was correctly created in the previous problem, write a line of code that will associate the variable with a file named grades.txt that is being opened for reading.

Assuming that grades.txt only contains integers, write a line of code that will use the variable data to read in the first integer and store in a variable named test1 that has already been declared.

ANSWER IN C PLEASE

Answer 1

Hi,

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main(){
   FILE *file;                                   //get the file pointer
   char filename[190],c;          
   printf("Enter the filename to open\n");       //Enter the name of the file with complete path
   scanf("%s",filename);                      
   file = fopen(filename,"r");                   //opening file
   if(file == NULL)
   {
       printf("Can not open file\n");           //if not found or wrong input
       exit(0);
   }
   c = fgetc(file);                           //reding file data
   while(c!=EOF)              
   {  
       printf("%c",c);                           //printing data character by character
       c = fgetc(file);                       //getting next character
   }
   fclose(file);                               //closing file
}

THANKS