C Programming Questions and Answers on Goto & Labels for Freshers

1. What is the output of the code given below?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         goto l1;

6.         printf("%d ", 2);

7.         l1:goto l2;

8.         printf("%d ", 3);

9.         l2:printf("%d ", 4);

10.    }

a) 1 4
b) Compilation error
c) 1 2 4
d) 1 3 4

Answer: a

2. What is the output of code given below?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         l1:l2:

6.         printf("%d ", 2);

7.         printf("%d\n", 3);

8.     }

a) Compilation error
b) 1 2 3
c) 1 2
d) 1 3

Answer: b

3. What is the output of code given below?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         goto l1;

6.         printf("%d ", 2);

7.     }

8.     void foo()

9.     {

10.         l1 : printf("3 ", 3);

11.     }

a) 1 2 3
b) 1 3
c) 1 3 2
d) Compilation error

Answer: d

4. What is output of code given below?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         while (i < 2)

6.         {

7.             l1 : i++;

8.             while (j < 3)

9.             {

10.                 printf("Loop\n");

11.                 goto l1;

12.             }

13.         }

14.     }

a) Loop Loop
b) Compilation error
c) Loop Loop Loop Loop
d) Infinite Loop

Answer: d

5. What is the output of code given below?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         while (l1: i < 2)

6.         {

7.             i++;

8.             while (j < 3)

9.             {

10.                 printf("loop\n");

11.                 goto l1;

12.             }

13.         }

14.     }

a) loop loop
b) Compilation error
c) loop loop loop loop
d) Infinite loop

Answer: b

6. What is the output of the code given below?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         l1: while (i < 2)

6.         {

7.             i++;

8.             while (j < 3)

9.             {

10.                 printf("loop\n");

11.                 goto l1;

12.             }

13.         }

14.     }

a) loop loop
b) compilation error
c) oop loop loop loop
d) infinite loop

Answer: a

7. The output of the code below is

1.     #include 

2.     void main()

3.     {

4.         int i = 0;

5.         if (i == 0)

6.         {

7.             goto label;

8.         }

9.         label: printf("Hello");

10.     }

a) Nothing
b) Error
c) Infinite Hello
d) Hello

Answer: d

8. The output of the code below is

1.     #include 

2.     void main()

3.     {

4.         int i = 0, k;

5.         if (i == 0)

6.             goto label;

7.             for (k = 0;k < 3; k++)

8.             {

9.                 printf("hi\n");

10.                 label: k = printf("%03d", i);

11.             }

12.     }

a) 0
b) hi hi hi 0 0 0
c) 0 hi hi hi 0 0 0
d) 0 0 0

Answer: a

9. The output of the code below is

1.     #include 

2.     void main()

3.     {

4.         int i = 0, k;

5.         label: printf("%d", i);

6.         if (i == 0)

7.             goto label;

8.     }

a) 0
b) Infinite 0
c) Nothing
d) Error

Answer: b

10. What is the output of this C code?

1.     #include 

2.     void main()

3.     {

4.         int i = 5, k;

5.         if (i == 0)

6.             goto label;

7.             label: printf("%d", i);

8.             printf("Hey");

9.     }

a) 5
b) Hey
c) 5 Hey
d) Nothing

Answer: c

11. goto can be used to jump from main to within a function

a) true
b) false
c) depends
d) varies

Answer: b

12. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         goto l1;

6.         printf("%d ", 2);

7.         l1:goto l2;

8.         printf("%d ", 3);

9.         l2:printf("%d ", 4);

10.    }

a) 1 4
b) Compile time error
c) 1 2 4
d) 1 3 4

Answer: a

13. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         l1:l2:

6.         printf("%d ", 2);

7.         printf("%d\n", 3);

8.     }

a) Compile time error
b) 1 2 3
c) 1 2
d) 1 3

Answer: b

14. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         printf("%d ", 1);

5.         goto l1;

6.         printf("%d ", 2);

7.     }

8.     void foo()

9.     {

10.         l1: printf("3 ", 3);

11.     }

a) 1 2 3
b) 1 3
c) 1 3 2
d) Compile time error

Answer: d

15. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         while (i < 2)

6.         {

7.             l1: i++;

8.             while (j < 3)

9.             {

10.                 printf("loop\n");

11.                 goto l1;

12.             }

13.         }

14.    }

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer: d

16. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         while (l1: i < 2)

6.         {

7.             i++;

8.             while (j < 3)

9.             {

10.                 printf("loop\n");

11.                 goto l1;

12.             }

13.         }

14.    }

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer: b

17. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = 0, j = 0;

5.         l1: while (i < 2)

6.             {

7.                 i++;

8.                 while (j < 3)

9.                 {

10.                     printf("loop\n");

11.                     goto l1;

12.                 }

13.             }

14.    }

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer: a