C# Aliasing Types and Namespaces

using System;//from www .  ja  va2 s  .  com
using MyAlias = A;
namespace A{
   class ClassA{
   
   }
   namespace B{
      class classB : ClassA{
      
      }
   }

}

class Program
{
    static void Main(string[] args)
    {
        new MyAlias.ClassA();
    }
}

using ThatConsoleClass = System.Console;
/*from w w  w  . j  a  v a2 s.co m*/
class MainClass
{
    public static void Main()
    {
        ThatConsoleClass.WriteLine("Hello");
    }
}

using System;  /*from  ww  w . j  a va2 s. c  o m*/
  
using Counter; 
using AnotherCounter; 
 
// Give Counter an alias called Ctr. 
using Ctr = Counter;  
  
namespace Counter {  
  class MyClass { 
  }  
}  
 
namespace AnotherCounter {  
  class MyClass { 
  } 
} 
 
class MainClass {  
  public static void Main() {  
 
    Ctr::MyClass m = new Ctr::MyClass();  
  }  
}