模板设计模式

abstract  class Action {
	  //操作行为标记
      public static final int EAT=1;
      public static final int SLEEP=3;
      public static final int WORK=5;
      public static final int RUN=7;
      public void order(int flag) {
    	  switch(flag) {
    	  //吃饭
    	  case EAT:
    		  this.eat();
    		  break;
    	  //睡觉
    	  case SLEEP:
    		  this.sleep();
    		  break;
    	  //工作
    	  case WORK:
    		  this.work();
    		  break;
    	  //跑步
    	  case RUN:
    		  this.run();
    		  break;
    	   //狗吃饭睡觉跑步
    	  case EAT+SLEEP+RUN:
    		  this.eat();
    	      this.sleep();
    	      this.run();
    	      break;
    	   //机器人吃饭工作
    	  case EAT+WORK:
    		  this.eat();
    	      this.work();
    	      break;
    	   //人吃饭睡觉跑步工作
    	  case EAT+SLEEP+RUN+WORK:
    		  this.eat();
    	      this.sleep();
    	      this.run();
    	      this.work();
    	      break;
    	  }
      }
      //动作行为
      public abstract void eat();
      public abstract void sleep();
      public abstract void run();
      public abstract void work();
      
}

 class Dog extends Action{
	@Override
	public void eat() {
		System.out.println("小狗在吃");
		}
	@Override
	public void sleep() {
		System.out.println("小狗在睡觉");
	}
	@Override
	public void run() {
		System.out.println("小狗在跑步");
	}
	@Override
	public void work() {
		//小狗没有此行为
	}
    }

class Robot extends Action{
		@Override
		public void eat() {
			System.out.println("机器人加油");	
		}
		@Override
		public void sleep() {
			// TODO Auto-generated method stub	
		}
		@Override
		public void run() {
			// TODO Auto-generated method stub
		}
		@Override
		public void work() {
			System.out.println("机器人在工作");
		}	
	}

class Person extends Action{
		@Override
		public void eat() {
			System.out.println("人在吃饭");	
		}
		@Override
		public void sleep() {
			System.out.println("人在睡觉");
		}
		@Override
		public void run() {
			System.out.println("人在跑步");
		}
		@Override
		public void work() {
			System.out.println("人在工作");
		}
	}

public class 模板设计模式{
	public static void main(String[] args) {
		Action ac1=new Dog();//向上转,体现出抽象编程的好处
		Action ac2=new Robot();
		Action ac3=new Person();
                //利用操作符进行方法调用
		ac1.order(Action.EAT+Action.RUN+Action.SLEEP);
		ac2.order(Action.EAT+Action.WORK);
		ac3.order(Action.EAT+Action.RUN+Action.SLEEP);
	}
}