"Java Design pattern" Mediator Pattern __java design pattern

Step one: Create an intermediary mediator

Public interface Mediator {
	//create mediator public
    void Createmediator ();
    
    public void Workall ();
}

Step two: Establish a specific intermediary to implement a person

Public class Mymediator implements mediator {

	 private User user1;
	 Private User user2;
	 
	 Public User GetUser1 () {return
		user1;
	}
	 Public User GetUser2 () {return
		user2;
	}
	 
	
	@Override public
	void Createmediator () {
		user1=new User1 (this);
		User2=new User2 (this);
	}

	@Override public
	void Workall () {
     user1.work ();
     User2.work ();
	}

Step three: Create a colleague class interface User

Public abstract class User {
   private mediator mediator;
   
   Public Mediator Getmediator () {return
	mediator;
}
   Public User (mediator mediator) {
	   this.mediator=mediator;
   }
   public abstract void work ();
}

Step four: Build the concrete implementation class of the colleague class

public class User1 extends User {public

	User1 (mediator mediator) {
		super (mediator);
	}

	 public void work () {
      System.out.println ("User1 execute Work");		
	}

public class User2 extends User {public

	User2 (mediator mediator) {
		super (mediator);
	}

	 public void work () {
      System.out.println ("User2 execute Work");		
	}

Step Five: Test

public class Test {public
   static void Main (string[] args) {
	Mediator mediator=new mymediator ();
	Mediator.createmediator ();
	Mediator.workall ();
}