Question

Choose the c methods applicable for reading to a text file from the items given below:

(a) get ()

(b) close ()

(c) getw()

(d) fread()

fill in the missing:

Assume the following program snippet writes to text file:

int main() {
 FILE * ptr;
 int num;
 _____________________= fopen("d:\\writingTo_File.txt", "");_________________

 if (ptr !=___________________) {
 printf("File created successfully!\n");
 }
 else {
 printf("Failed to create the file.\n");
 // exit status that an error occurred
 return -1;
 }

#include <stdio.h>

int main() {

 FILE * fp;
 fp = fopen ("d:\\music.txt", "w");

 fprintf (fp ,"Engineering Programming");
 fclose(____________);
 return______________;
}

Assume the following piece of code reads from a text file

int main() {

int sum =0;
FILE * ptr;
ptr = fopen("d:\\students.________","___________");

if (ptr ==NULL){
 _______________("file does not exist!!");
 exit(0);
}

Answer 1

getw()

int main() {
  FILE * ptr;
  int num;
  ptr = fopen("d:\\writingTo_File.txt", "");
  if (ptr != nullptr) {
    printf("File created successfully!\n");
  } else {
    printf("Failed to create the file.\n");
  }
  // exit status that an error occurred
  return -1;
}

#include <stdio.h>

int main() {

 FILE * fp;
 fp = fopen ("d:\\music.txt", "w");

 fprintf (fp ,"Engineering Programming");
 fclose(fp);
 return 0;
}

int main() {

int sum =0;
FILE * ptr;
ptr = fopen("d:\\students.txt","r");

if (ptr ==NULL){
 printf("file does not exist!!");
 exit(0);
}