Java设计模式-模板模式

abstract class Action{
  public static final int EAT = 1;
  public static final int SLEEP = 5;
  public static final int RUN = 20;
  public static final int WORK = 30;
  public abstract void eat();
  public abstract void sleep();
  public abstract void run();
  public abstract void work();
  public void order(int flag){
    switch(flag){
      case EAT:
        this.eat();
        break;
      case SLEEP:
        this.sleep();
        break;
      case RUN:
        this.run();
        break;
      case WORK:
        this.work();
        break;
      case EAT+WORK:
        this.eat();
        this.work();
        break;
      case EAT+WORK+RUN+SLEEP:
        this.eat();
        this.sleep();
        this.run();
        this.work();
        break;
      case EAT+RUN+SLEEP:
        this.eat();
        this.sleep();
        this.run();
        break;
    }
  }
}
class Person extends Action{
  public void eat(){
    System.out.print("人吃，");
  }
  public void sleep(){
    System.out.print("人睡，");
  }
  public void run(){
    System.out.print("人跑，");
  }
  public void work(){
    System.out.print("人工作，");
  }
}
class Pig extends Action{
  public void eat(){
    System.out.print("猪吃，");
  }
  public void sleep(){
    System.out.print("猪睡，");
  }
  public void run(){
    System.out.print("猪跑，");
  }
  public void work(){}
}
class Robet extends Action{
  public void eat(){
    System.out.print("机器人吃，");
  }
  public void sleep(){}
  public void run(){}
  public void work(){
    System.out.print("机器人工作，");
  }
}
public class MoBan{
  public static void main(String args[]){
  /*  
人吃，人睡，人跑，人工作，
猪吃，猪睡，猪跑，
机器人吃，机器人工作，
  */
    Action ren = new Person();
    ren.order(Action.EAT+Action.SLEEP+Action.RUN+Action.WORK);
    System.out.println();
    Action pig = new Pig();
    pig.order(Action.EAT+Action.SLEEP+Action.RUN);
    System.out.println();
    Action robet = new Robet();
    robet.order(Action.EAT+Action.WORK);
  }
}