If the file 'source.txt' contains a line "Be my friend" which of the following will be the output of below program?

#include<stdio.h>

int main()
{
    FILE *fs, *ft;
    char c[10];
    fs = fopen("source.txt", "r");
    c[= getc(fs);
    fseek(fs,SEEK_END);
    fseek(fs, -3L, SEEK_CUR);
    fgets(c,fs);
    puts(c);
    return}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    FILE *fp;
    char ch, str[7];
    fp=fopen("try.c", "r"); /* file 'try.c' contains "This is Nagpur" */
    fseek(fp, 9L, SEEK_CUR);
    fgets(str,fp);
    puts(str);
    return}

Point out the error in the program?

#include<stdio.h>

/* Assume there is a file called 'file.c' in c:\tc directory. */
int main()
{
    FILE *fp;
    fp=fopen("c:\tc\file.c", "r");    
    if(!fp) 
      printf("Unable to open file.");        

    fclose(fp);
    return}

We should not read after a write to a file without an intervening call to fflush(), fseek() or rewind()

What will be the output of the program ?

#include<stdio.h>

int main()
{
    char *p;
    p="%d\n";
    p++;
    p++;
    printf(p-23);
    return}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    float a=3.
    printf("%2.1f\n", a);
    return
}

What will be the output of the program if value 25 given to scanf()?

#include<stdio.h>

int main()
{
    int i;
    printf("%d\n", scanf("%d", &i));
    return}

Point out the error/warning in the program?

#include<stdio.h>

int main()
{
    unsigned char ch;
    FILE *fp;
    fp=fopen("trial", "r");
    while((ch = getc(fp))!=EOF)
        printf("%c", ch);
    fclose(fp);
    return}

In a call to printf() function the format specifier %b can be used to print binary equivalent of an integer.

What will be the output of the program ?

#include<stdio.h>

int main()
{
    FILE *ptr;
    char i;
    ptr = fopen("myfile.c", "r");
    while((i=fgetc(ptr))!=NULL)
        printf("%c", i);
    return}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    printf("%%%%\n");
    return}

In a file contains the line "I am a boy\r\n" then on reading this line into the array str using fgets(). What will str contain?

What is the purpose of "rb" in fopen() function used below in the code?

FILE *fp;
fp = fopen("source.txt", "rb");

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}

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[= "source.txt", target[20]="target.txt", t;
    FILE *fs, *ft;
    fs = fopen(source, "r");
    ft = fopen(target, "w");
    while(    {
        ch=getc(fs);
        if(ch==EOF)
            break;
        else
        {
            fseek(fs, 4L, SEEK_CUR);
            fputc(ch, ft);
        }
    }
    return}

Which of the following operations can be performed on the file "NOTES.TXT" using the below code?

FILE *fp;
fp = fopen("NOTES.TXT", "r+");

To scan a and b given below, which of the following scanf() statement will you use?

#include<stdio.h>

float a;
double b;

To print out a and b given below, which of the following printf() statement will you use?

#include<stdio.h>

float a=3.double b=3.

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

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}