using System;

public class MainClass
{
    static void Main(string[] args) {
       // Change the console appearance and redisplay.
       Console.Title = "Resized Console";
       Console.ResetColor();
       Console.Clear();
       Console.SetWindowSize(100, 50);
       Console.BufferHeight = 500;
       Console.BufferWidth = 100;
       Console.CursorLeft = 20;
       Console.CursorSize = 50;
       Console.CursorTop = 20;
       Console.CursorVisible = false;
   }
}

    

   


using System;

public class Addition
{
   public static void Main( string[] args )
   {
      int number1; 
      int number2; 
      int sum; 

      Console.Write( "Enter first integer: " ); 
      number1 = Convert.ToInt32( Console.ReadLine() );

      Console.Write( "Enter second integer: " );
      number2 = Convert.ToInt32( Console.ReadLine() );

      sum = number1 + number2;

      Console.WriteLine( "Sum is {0}", sum );
   } 
}


           
          

   




using System;

public class Welcome4
{
   public static void Main( string[] args )
   {
      Console.WriteLine( "{0}
{1}", "Welcome to", "C# Programming!" );
   } 
}

           
          

   



using System;

public class Welcome3
{
   public static void Main( string[] args )
   {
      Console.WriteLine( "Welcome
to
C#
Programming!" );
   } 
}

           
          

   


using System;

public class Welcome2 {
    public static void Main(string[] args) {
        Console.Write("Welcome to ");
        Console.WriteLine("C# Programming!");
    }
}

           
          

   
 


using System;

class ConsoleAdder {
    public static void Main() {
        int a = 15;
        int b = 744;
        int c = a + b;

        Console.Write("The sum of ");
        Console.Write(a);
        Console.Write(" and ");
        Console.Write(b);
        Console.Write(" equals ");
        Console.WriteLine(c);
        Console.WriteLine("The sum of " + a + " and " + b + " equals " + c);
        Console.WriteLine("The sum of {0} and {1} equals {2}", a, b, c);
    }
}

    

using System;

class MainEntryPoint {
static void Main(string[] args) {
Console.WriteLine(“Type in a string”);
string input;
input = Console.ReadLine();
if (input == “”) {
Console.WriteLine(“You typed in an empty string”);
} else if (input.Length < 5) { Console.WriteLine("The string had less than 5 characters"); } else if (input.Length < 10) { Console.WriteLine("The string had at least 5 but less than 10 characters"); } Console.WriteLine("The string was " + input); } } [/csharp]