Miscellaneous in C Sharp
practice.

What does preprocessor directive #if and #endif explains?

Which string operation does the below-mentioned method define?

public static string Concat(string str0, string str1)

Among the given collections which one is I/O index based?

Choose the class from which the namespace 'System.Type' is derived?

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

class UnsafeCode
{
    struct MyStruct
    {
        public int a;
        public int b;
        public int Sum() 
       { 
           return a / b; 
       }
   }
   unsafe static void Main()
   {
       MyStruct o = new MyStruct();
       MyStruct* p; 
       p = &o;
       p->a = 60; 
       p->b = 15; 
       int c = 30;
       Console.WriteLine("Value is : " + p->Sum()*c);
       Console.ReadLine();
   }
}

What does the following C# code set specify?

public static int Compare(string strA, int indexA, string strB, int indexB, int length, bool ignoreCase)

Which of these is used as default for a member of a class if no access specifier is used for it?

What is the process by which we can control what parts of a program can access the members of a class?

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

static void Main(string[] args)
{
    string s1 = "olleH";
    string s2 = "olleh";
    if (s1 == s2)
    Console.WriteLine("Equal");
    else
    Console.WriteLine("Unequal");
    if (s1.Equals(s2))
    Console.WriteLine("Equal");
    else
    Console.WriteLine("Unequal");
    Console.ReadLine();
}

What kind of exception is being thrown if Wait(), Pulse() or PulseAll() is called from code that is not within synchronized code?

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

class Program
{
    static void Main(string[] args)
    {
        double x = 4.772;
        double y = 4.76;
        double z = Math.Max(x, y);
        Console.WriteLine(z);
        Console.ReadLine();
    }
}

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();
    }
}

Which among the following is a correct statement about namespace used in C#.NET?

Consider an integer pointer . *a.++*a will increment . . . . . . . . while *a++ will increment . . . . . . . .

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

class UnsafeCode
{
    unsafe static void Main()
    {
        int* p ;
        int ch = 13*5;
        p = &(ch);
        Console.WriteLine(Convert.ToChar(*p));
        if (*p == 'A')
        Console.WriteLine(Convert.ToBoolean(1));
        else
        Console.WriteLine(Convert.ToBoolean(0));
        Console.ReadLine();
    }
}

What does the following C# code specify?

object Invoke(object obj, object[] parameters)

What does the following C# code set specifies?

public static int Compare(string strA, string strB)

Which of the following is not a namespace in the .NET Framework Class Library?

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

class Program
{
    static void Main(string[] args)
    {
        float x = 3.14F;
        int y = (int)Math.Abs(x);
        Console.WriteLine(y);
        Console.ReadLine();
    }
}

Which among the following is not the ordered collection class?