C While Looping MCQ

Q1. What will be the output of the following C code?

#include 
    int main()
    {
        while ()
            printf("In while loop ");
        printf("After loop\n");
    }

1. In while loop after loop
2. After loop
3. Compile time error
4. Infinite loop

View Answer

Q2. What will be the output of the following C code?

#include 
    int main()
    {
        do
            printf("In while loop ");
        while (0);
            printf("After loop\n");
    }}

1. In while loop
2. In while loop)
3. After loop
4. Infinite loop

View Answer

Q3. What will be the output of the following C code?

#include 
    int main()
    {
        int i = 0;
        do {
            i++;
            printf("In while loop\n");
        } while (i < 3);
    }

1. In while loop
2. Depends on the compiler
3. loop
4. Compile time error

View Answer

Q4. How many times i value is checked in the following C code?

#include 
    int main()
    {
        int i = 0;
        do {
            i++;
            printf("in while loop\n");
        } while (i < 3);
    }

1. 2
2. 3
3. 4
4. 1

View Answer

Q5. How many times i value is checked in the following C code?

 #include 
    int main()
    {
        int i = 0;
        while (i < 3)
            i++;
        printf("In while loop\n");
    } 

1. 2
2. 3
3. 4
4. 1

View Answer

Q6. What will be the output of the following C code?

#include 
    void main()
    {
        int i = 2;
        do
        {
            printf("Hi");
        } while (i < 2)
    }

1. Compile time error
2. Hi Hi
3. Hi
4. Varies

View Answer

Q7. What will be the output of the following C code?

#include 
    void main()
    {
        int i = 0;
        while (++i)
        {
            printf("H");
        }
    }

1. H
2. H is printed infinite times
3. Compile time error
4. Varies

View Answer

Q8. What will be the output of the following C code?

#include 
    void main()
    {
        int i = 0;
        do
        {
            printf("Hello");
        } while (i != 0);
    }

1. Nothing
2. H is printed infinite times
3. Hello
4. Run time error

View Answer

Q9. What will be the output of the following C code?

#include 
    void main()
    {
        char *str = "";
        do
        {
            printf("hello");
        } while (str);
    }

1. Nothing
2. Run time error
3. Varies
4. Hello is printed infinite times

View Answer

Q10. What will be the output of the following C code?

#include 
void main()
{
    int i = 0;
    while (i < 10)
    {
        i++;
        printf("hi\n");
        while (i < 8) 
        {
            i++;
            printf("hello\n");
        }
    }
}

1. Hi is printed 8 times, hello 7 times and then hi 2 times
2. Hi is printed 10 times, hello 7 times
3. Hi is printed once, hello 7 times
4. Hi is printed once, hello 7 times and then hi 2 times

View Answer