Listing 9-8 extracted from chapter Fundamental concepts of the language

Listing 9-7<     > Listing 9-9

This listing can be compiled with the command line:
csc.exe /target:exe Example_9_8.cs
Errors: 0 Warnings: 0

//Define the alias 'C' toward the 'System.Console' type.
using C = System.Console;
class Program{
   static void Main(){
      C.WriteLine("Hello 1");
   }
}