Input / Output - General Questions | Multiple Questions and Answers

Join Us :: Register Login

Home Classes GK Engineering Past Papers Current Affairs Technical GAT Subject Programming Medical Papers

Input / Output - General Questions Multiple Questions and Answers.

6.	Which files will get closed through the fclose() in the following program?
	`#include<stdio.h> int main() { FILE fs, ft, *fp; fp = fopen("A.C", "r"); fs = fopen("B.C", "r"); ft = fopen("C.C", "r"); fclose(fp, fs, ft); return 0; }`
	A.	"A.C" "B.C" "C.C"
	B.	"B.C" "C.C"
	C.	"A.C"
	D.	Error in fclose()

7.	On executing the below program what will be the contents of 'target.txt' file if the source file contains a line "To err is human"?
	`#include<stdio.h> int main() { int i, fss; char ch, source[20] = "source.txt", target[20]="target.txt", t; FILE fs, ft; fs = fopen(source, "r"); ft = fopen(target, "w"); while(1) { ch=getc(fs); if(ch==EOF) break; else { fseek(fs, 4L, SEEK_CUR); fputc(ch, ft); } } return 0; }`
	A.	r n
	B.	Trh
	C.	err
	D.	None of above

8.	To scan a and b given below, which of the following scanf() statement will you use?
	`#include<stdio.h> float a; double b;`
	A.	scanf("%f %f", &a, &b);
	B.	scanf("%Lf %Lf", &a, &b);
	C.	scanf("%f %Lf", &a, &b);
	D.	scanf("%f %lf", &a, &b);

9.	Out of fgets() and gets() which function is safe to use?

	A.	gets()
	B.	fgets()
	C.	gets() and fgets()
	D.	None of above

10.	Consider the following program and what will be content of t?
	`#include<stdio.h> int main() { FILE *fp; int t; fp = fopen("DUMMY.C", "w"); t = fileno(fp); printf("%d\n", t); return 0; }`
	A.	size of "DUMMY.C" file
	B.	Garbage value
	C.	Error in fileno()
	D.	The handle associated with "DUMMY.C" file

Read More :

» Input / Output - General Questions

» Input / Output - Find Output of Program

» Input / Output - Point Out Errors

» Input / Output - Point Out Correct Statements

Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject

Computer Science English Mcqs Agriculture

Engineering

Computer Science Civil Engineering

Technical

Networking Electronics Database

Past Papers

Model Papers FPSC Papers