Java 之 命令模式

public class Receiver {
    public void action(){
        System.out.println(Receiver.class);
    }
}


public interface Command {

    void execute();
}

public class ConcreteCommand implements Command {
	private Receiver receiver = null;

	public ConcreteCommand(Receiver receiver) {
		this.receiver = receiver;
	}

	@Override
	public void execute() {
		receiver.action();
	}

}

public class Invoker {
	private Command command = null;

	public Invoker(Command command) {
		this.command = command;
	}

	public void action() {

		command.execute();
	}
}


// 將接受者的一個操做 --> 封裝爲一條命令 --> 傳遞給給執行操做人
public class Client {
	
	public static void main(String[] args) {
		Receiver receiver = new Receiver();
		Command command = new ConcreteCommand(receiver);
		Invoker invoker = new Invoker(command);
		invoker.action();
	}
}

學習設計模式強烈推薦的博客：java_my_life

代碼地址：lennon