Control Structures Questions in C

1.
What will be the output of following program ?

#include
void main()
{
    if(!printf(""))
        printf("Okkk");
    else
        printf("Hiii");
}

A. okkk
B. Hiii
C. Error
D. None

Answer: A
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2.
What will be the output of following program ?

#include
int main()
{
    int a=10;
    if(10L == a)
        printf("10L");
    else if(10==a)
        printf("10");
    else
        printf("0");
    return 0;
}

A. 10
B. 10L
C. 10L10
D. ERROR

Answer: B
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3.
Find the output?

#include
int main()
{
    int pn=100;
    if(pn>20)
        if(pn<20 font="">
            printf("Heyyyyy");
    else
        printf("Hiiiii");
    return 0;
}

A. No output
B. Hiiiii
C. Heyyyyy
D. HeyyyyyHiiiii

Answer: B
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4.
Find the output?

#include
#define TRUE 1
int main()
{
    if(TRUE)
        printf("1");
        printf("2");
    else
        printf("3");
        printf("4");
    return 0;
}

A. ERROR
B. 1
C. 12
D. 2

Answer: A
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5.
Find the output?

#include
int main()
{
    int a=10;
    if(a==10)
    {
        printf("Hello...");
        break;
        printf("Ok");
    }
    else
    {
        printf("Hii");
    }
    return 0;
}

A. Hello...
B. Hello...OK
C. OK
D. ERROR

Answer: D
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6. 

What will be output when you will execute following c code?

#define True 5==5

#include

void main(){

    if(.001-0.1f)

         printf("David Beckham");

    else if(True)

         printf("Ronaldinho");

    else

        printf("Cristiano Ronaldo");

}

Choose an option:

A. David Beckham

B. Ronaldinho

C. Cristiano Ronaldo

D. Warning: Condition is always true

E. Warning: Unreachable code

Answer: A,D,E

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7.

What will be output when you will execute following c code?

#include

void main(){

    int a=100;

    if(a>10)

         printf("M.S. Dhoni");

    else if(a>20)

         printf("M.E.K Hussey");

    else if(a>30)

           printf("A.B. de villiers");

}

Choose all that apply:

A. M.S. Dhoni
B. A.B. de villiers
C. M.S Dhoni

     M.E.K Hussey

     A.B. de Villiers

D. Compilation error: More than one conditions are true
E. None

Answer: A
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8.

What will be output when you will execute following c code?

#include

void main(){

    if(sizeof(void))

         printf("M. Muralilidaran");

    else

         printf("Harbhajan Singh");

}

Choose an option:

A. M. Muralilidaran

B. Harbhajan Singh

C. Warning: Condition is always false

D. Compilation error

E. None

Answer: D

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Simple Array Questions in C
Yes/No Array Questions

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1. 
Predict the output?

public class Main {

    public static void main(String args[]) {

       int arr[] = {10, 20, 30, 40, 50};

       for(int i=0; i < arr.length; i++)

       {

             System.out.print(" " + arr[i]);              

       }

    }

}

A. 10 20 30 40 50

B. Compiler Error

C. 10 20 30 40

D. None

Answer: A

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2. 

class Test {

   public static void main(String args[]) {

     int arr[] = new int[2];  

     System.out.println(arr[0]);

     System.out.println(arr[1]);

   }

}

A. 0

     0

B. Garbage value

    Garbage value

C. Compiler

D.Exception

Answer: A

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3.

public class Main {

    public static void main(String args[]) {

        int arr[][] = new int[4][];

        arr[0] = new int[1];

        arr[1] = new int[2];

        arr[2] = new int[3];

        arr[3] = new int[4];

  

        int i, j, k = 0;

        for (i = 0; i < 4; i++) {

            for (j = 0; j < i + 1; j++) {

                arr[i][j] = k;

                k++;

            }

        }

        for (i = 0; i < 4; i++) {

            for (j = 0; j < i + 1; j++) {

                System.out.print(" " + arr[i][j]);

                k++;

            }

            System.out.println();

        }

    }

} 

A. 0

    1 2

    3 4 5

    6 7 8 9

B. Compiler Error

C. 0

     0 0

     0 0 0

     0 0 0 0

D. 9

     7 8

     4 5 6

     0 1 2 3 

Answer: A

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4.

Output of following Java program?

int main()

{

    static int a[2][2] = {1, 2, 3, 4};

    int i, j;

    static int *p[] = {(int*)a, (int*)a+1, (int*)a+2};

    for(i=0; i<2 font="" i="">

    {

        for(j=0; j<2 font="" j="">

        {

            printf("%d, %d, %d, %d\n", *(*(p+i)+j), *(*(j+p)+i), 

                                    *(*(i+p)+j), *(*(p+j)+i));

        }

    }

    return 0;

}

A. 1, 1, 1, 1

     2, 3, 2, 3
     3, 2, 3, 2
     4, 4, 4, 4

B. 1, 2, 1, 2

     2, 3, 2, 3
     3, 4, 3, 4
     4, 2, 4, 2

C. 1, 1, 1, 1

     2, 2, 2, 2
     2, 2, 2, 2
     3, 3, 3, 3

D. 1, 2, 3, 4

     2, 3, 4, 1
     3, 4, 1, 2
     4, 1, 2, 3

Answer: C

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5.

What will be the output of the program ?

#include

void fun(int **p);

int main()

{

    int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 8, 7, 8, 9, 0};

    int *ptr;

    ptr = &a[0][0];

    fun(&ptr);

    return 0;

}

void fun(int **p)

{

    printf("%d\n", **p);

}

A. 1

B. 2

C. 3

D. 4

Answer: A

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Simple Array Questions

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