C# Programming - Functions and Subroutines

Exercise :: Functions and Subroutines - General Questions

  • Functions and Subroutines - General Questions
16. 

What will be the output of the C#.NET code snippet given below?

namespace IndiabixConsoleApplication
{
    class SampleProgram
    {
        static void Main(string[ ] args)
        {
            int i;
            int res = fun(out i);
            Console.WriteLine(res);
        }
        static int fun (out int i)
        {
            int s = 1;
            i = 7;
            for(int j = 1; j <= i; j++)
            {
                s = s * j;
            }
            return s;
        } 
    } 
}

A. 1
B. 7
C. 8
D. 720
E. 5040

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

17. 

If a function fun() is to sometimes receive an int and sometimes a double then which of the following is the correct way of defining this function?

A.
static void fun(object i)
{ ... }
B.
static void fun(int i)
{ ... }
C.
static void fun(double i, int j)
{ ... }
D.
static void fun(int i, double j)
{ ... }
E.
static void fun(int i, double j, )
{ ... }

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

18. 

Which of the following statements are correct about subroutines used in C#.NET?

  1. If we do not return a value from a subroutine then a value -1 gets returned.
  2. Subroutine definitions cannot be nested.
  3. Subroutine can be called recursively.
  4. To return the control from middle of a subroutine exit subroutine should be used.
  5. Subroutine calls can be nested.

A. 1, 2, 3
B. 2, 3, 5
C. 3, 5
D. 3, 4
E. None of these

Answer: Option B

Explanation:

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19. 

A function can be used in an expression, whereas a subroutine cannot be.

A. True
B. False

Answer: Option A

Explanation:

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20. 

Which of the following statements are correct about the C#.NET program given below?

namespace IndiabixConsoleApplication
{ 
    class SampleProgram
    { 
        static void Main(string[ ] args)
        { 
            int a = 5;
            int s = 0, c = 0; 
            s, c = fun(a); 
            Console.WriteLine(s +" " + c) ;
        }
        static int fun(int x)
        {
            int ss, cc;
            ss = x * x; cc = x * x * x; 
            return ss, cc;
        } 
    } 
}
  1. An error will be reported in the statement s, c = fun(a); since multiple values returned from a function cannot be collected in this manner.
  2. It will output 25 125.
  3. It will output 25 0.
  4. It will output 0 125.
  5. An error will be reported in the statement return ss, cc; since a function cannot return multiple values.

A. 1, 3
B. 2, 4
C. 4, 5
D. 1, 5
E. None of these

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.