C# Programming Mock Test 10

1. What will be the output of the following C# code snippet?

 class Program
 {
     static void Main(string[] args)
     {
         String s1 = "CSHARP";
         String s2 = s1.Replace('H','L');
         Console.WriteLine(s2);
         Console.ReadLine();
     }
 }

2. What will be the output of the following C# code snippet?

 static void Main(string[] args)
 {
     string s = " i love you";
     Console.WriteLine(s.IndexOf('l') + "  " + s.lastIndexOf('o') + "  " + s.IndexOf('e'));
     Console.ReadLine();
 }

3. What will be the output of the following C# code snippet?

class UnsafeCode
{
    unsafe static void Main()
    {
        int a = 2;
        int b = 4;
        int *a1 = &a;
        int *b1 = &b;
        Console.WriteLine(*a1 + *b1);
    }
}

4. What will be the output of the following C# code snippet?

class UnsafeCode
{
    unsafe static void Main()
    {
        int* ptrs = stackalloc int[3];
        ptrs[0] = 1;
        ptrs[1] = 2;
        ptrs[2] = 3;
        for (int i = 2; i >=0; i--)
        Console.WriteLine(ptrs[i]);
        Console.ReadLine();
    }
}

5. After incrementing a float pointer ptr by 1 it would be incremented by __________

6. Which of these type parameters is used for generic methods to return and accept any type of object?

7. Which operator is commonly used to find the size of the type of C#?

8. Which of these base class are accessible to the derived class members?

9. What will be the output of the following C# code snippet?

 class sum   
 {
     public int x;
     public int y;
     public  int add (int a, int b)
    {
        x = a + b;
        y = x + b;
        return 0;
    }
}    
class Program
{
    static void Main(string[] args)
    {
        sum obj1 = new sum();
        sum obj2 = new sum();   
        int a = 2;
        obj1.add(a, a + 1);
        obj2.add(5, a);
        Console.WriteLine(obj1.x + "  " + obj2.y);     
        Console.ReadLine();
    }
}

10. Select the type argument of open constructed type?