Explore topic-wise MCQs in Technical MCQs.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

Explore topic-wise MCQs in Technical MCQs.

In fopen(), the open mode "wx" is sometimes preferred "w" because. 1) Use of wx is more efficient. 2) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.

which Is data type of file pointer is?

#include <stdio.h>int main(){ int i=3; printf("i=%*d", i, i); return 0;}28.stderr, stdin, stdout are FILE pointers

Select text file in which data is stored in

Select a function which is used to write a string to a file?

#include <stdio.h>int main(){ char c; FILE *fp; fp=fopen("demo.txt","a+"); // demo.txt : hello you are reading a file fprintf(fp," demo"); fclose(fp); fp=fopen("myfile.txt","r"); while((c=fgetc(fp))!=EOF) printf("%c",c); fclose(fp); return 0;}22.A data of the file is stored in?

#include <stdio.h>int main(){ int i=3; printf("i=%*d", i, i); return 0;}
28.stderr, stdin, stdout are FILE pointers

#include <stdio.h>int main(){ char c; FILE *fp; fp=fopen("demo.txt","a+"); // demo.txt : hello you are reading a file fprintf(fp," demo"); fclose(fp); fp=fopen("myfile.txt","r"); while((c=fgetc(fp))!=EOF) printf("%c",c); fclose(fp); return 0;}
22.A data of the file is stored in?