Listing 9-15 extracted from chapter Fundamental concepts of the language

Listing 9-14<     > Listing 9-16

This listing can be compiled with the command line:
csc.exe /target:exe Example_9_15.cs
Errors: 0 Warnings: 0

using System;
class Program{
   class System { }    
   const int Console = 691; 
   static void Main(){
      global::System.Console.WriteLine("Hello 1");
      global::System.Console.WriteLine("Hello 2");
   }
}