Classes and Objects in C Sharp MCQ question and answer with solution | C# Program MCQs

When we call a constructor method among different given constructors. We match the suitable constructor by matching the name of constructor first, then the number and then the type of parameters to decide which constructor is to be overloaded. The process is also known as?

Which method has the same name as that of its class?

Wrong statement about run time polymorphism is?

What will be the output of the following C# code?

class recursion 
{
    int fact(int n) 
    {
        int result;
        if (n == 1)
        return 1;
        result = fact(n - 1) * n;
        return result;
    }
} 
class Program 
{
    public static void main(String args[]) 
    {
        recursion obj = new recursion() ;
        Console.WriteLine(obj.fact(4));
    }
}

Which of the following statements are correct?

Correct statement about constructors in C#.NET is?

Which of the following modifiers is used when an abstract method is redefined by a derived class?

What will be the output of the following C# code?

static void Main(string[] args)
{
    int[] arr = new int[] {1, 2, 3, 4, 5};
    fun1(ref arr);
    Console.ReadLine();
 }
static void fun1(ref int[] array)
{
    for (int i = 0; i < array.Length; i++)
    {
        array[i] = array[i] + 5;
        Console.WriteLine(array[i] + " ");
    }
}

Choose the correct statement among the below mentioned statements.

What will be the output of the following C# code?

static void Main(string[] args)
{
   int a = 5;
   fun1 (ref a);
   Console.WriteLine(a);
   Console.ReadLine();
}
static void fun1(ref int a)
{
    a = a * a;
}