What will be the output of the program? #include<stdio.h> int main() { char

CuriousTab

Home Aptitude

Discussion

Home ‣ C Programming ‣ Strings See What Others Are Saying!

Question

Options
A. Hello
B. HelloHello
C. No output
D. ello

Correct Answer

Hello

More questions

1. Point out the error in the program.

#include<stdio.h>
const char *fun();

int main()
{
    *fun() = 'A';
    return 0;
}
const char *fun()
{
    return "Hello";
}

Options
A. Error: RValue required
B. Error: Lvalue required
C. Error: fun() returns a pointer const character which cannot be modified
D. No error

Discuss

2. Which statement will you add to the following program to ensure that the program outputs "CuriousTab" on execution?

#include<stdio.h>

int main()
{
    char s[] = "CuriousTab";
    char t[25];
    char *ps, *pt;
    ps = s;
    pt = t;
    while(*ps)
        *pt++ = *ps++;

    /* Add a statement here */
    printf("%s\n", t);
    return 0;
}

Options
A. *pt='';
B. pt='\0';
C. pt='\n';
D. *pt='\0';

Discuss

3. A float occupies 4 bytes. If the hexadecimal equivalent of these 4 bytes are A, B, C and D, then when this float is stored in memory in which of the following order do these bytes gets stored?
Options
A. ABCD
B. DCBA
C. 0xABCD
D. Depends on big endian or little endian architecture

Discuss

4. To print out a and b given below, which of the following printf() statement will you use?
```
#include<stdio.h>

float a=3.14;
double b=3.14;
```
Options
A. printf("%f %lf", a, b);
B. printf("%Lf %f", a, b);
C. printf("%Lf %Lf", a, b);
D. printf("%f %Lf", a, b);

Discuss

5. Which of the following function is more appropriate for reading in a multi-word string?
Options
A. printf();
B. scanf();
C. gets();
D. puts();

Discuss

Correct Answer: gets();

Explanation:

gets(); collects a string of characters terminated by a new line from the standard input stream stdin

#include <stdio.h>

int main(void)
{
   char string[80];

   printf("Enter a string:");
   gets(string);
   printf("The string input was: %s\n", string);
   return 0;
}

Output:

Enter a string: CuriousTab

The string input was: CuriousTab

6. What will be the output of the program if the array begins at address 65486?

#include<stdio.h>

int main()
{
    int arr[] = {12, 14, 15, 23, 45};
    printf("%u, %u\n", arr, &arr);
    return 0;
}

Options
A. 65486, 65488
B. 65486, 65486
C. 65486, 65490
D. 65486, 65487

Discuss

7. What will be the output of the program in Turbo C (under DOS)?

#include<stdio.h>

int main()
{
    struct emp
    {
        char *n;
        int age;
    };
    struct emp e1 = {"Dravid", 23};
    struct emp e2 = e1;
    strupr(e2.n);
    printf("%s\n", e1.n);
    return 0;
}

Options
A. Error: Invalid structure assignment
B. DRAVID
C. Dravid
D. No output

Discuss

8. Does there any function exist to convert the int or float to a string?
Options
A. Yes
B. No

Discuss

Correct Answer: Yes

Explanation:

1. itoa() converts an integer to a string.
2. ltoa() converts a long to a string.
3. ultoa() converts an unsigned long to a string.
4. sprintf() sends formatted output to a string, so it can be used to convert any type of values to string type.

#include<stdio.h>
#include<stdlib.h>

int main(void)
{
   int   num1 = 12345;
   float num2 = 5.12;
   char str1[20];
   char str2[20];

   itoa(num1, str1, 10); /* 10 radix value */
   printf("integer = %d string = %s \n", num1, str1);

   sprintf(str2, "%f", num2);
   printf("float = %f string = %s", num2, str2);

   return 0;
}

// Output:
// integer = 12345 string = 12345
// float = 5.120000 string = 5.120000

9. Which of the following special symbol allowed in a variable name?
Options
A. * (asterisk)
B. | (pipeline)
C. - (hyphen)
D. _ (underscore)

Discuss

10. What will be the output of the program?

#include<stdio.h>
typedef unsigned long int uli;
typedef uli u;

int main()
{
    uli a;
    u b = -1;
    a = -1;
    printf("%lu, %lu", a, b);
    return 0;
}

Options
A. 4343445454, 4343445454
B. 4545455434, 4545455434
C. 4294967295, 4294967295
D. Garbage values

Discuss

Comments

CuriousTab

CuriousTab

Discussion

What will be the output of the program?
#include<stdio.h> int main() { char str1[] = "Hello"; char str2[10]; char t, s; s = str1; t = str2; while(t=s) t++ = s++; printf("%s\n", str2); return 0; }

More questions

More in C Programming:

Aptitude

Engineering

Programming

Reasoning

Links

CuriousTab

CuriousTab

Discussion

What will be the output of the program? #include<stdio.h> int main() { char str1[] = "Hello"; char str2[10]; char *t, *s; s = str1; t = str2; while(*t=*s) *t++ = *s++; printf("%s\n", str2); return 0; }

More questions

More in C Programming:

Aptitude

Engineering

Programming

Reasoning

Links

Social

What will be the output of the program?
#include<stdio.h> int main() { char str1[] = "Hello"; char str2[10]; char t, s; s = str1; t = str2; while(t=s) t++ = s++; printf("%s\n", str2); return 0; }