责任连模式

2019独角兽企业重金招聘Python工程师标准>>>

package ww.cc.coc;

public abstract class HanderPrice { //使每个子类都能访问到，所以采用protected权限 protected HanderPrice successor; //该方法用于传递请求 public void setSuccessor(HanderPrice successor) { this.successor = successor; }

//该方法用于处理请求
public abstract void pressHander(float discount);

}

package ww.cc.coc;

public class Sales extends HanderPrice{

public void pressHander(float discount) {
	// TODO Auto-generated method stub
	if(discount<=0.05){
		System.out.format("%s批准啦折扣，折扣为%2f\n",this.getClass().getName(),discount);
	}
	else
		successor.pressHander(discount);
}

}

package ww.cc.coc;

public class Manager extends HanderPrice {

public void pressHander(float discount) {
	// TODO Auto-generated method stub
	if(discount<=0.3){
		System.out.format("%s批准啦请求，折扣为%2f\n",this.getClass().getName(),discount);
	}
	else
	{
		successor.pressHander(discount);
	}
}

} 、

package ww.cc.coc;

public class Director extends HanderPrice {

public void pressHander(float discount) {
	if(discount<=0.5){
		System.out.format("%s批准啦请求，折扣为%2f\n",this.getClass().getName(),discount);
	}
	else{
		successor.pressHander(discount);
	}

}

}

package ww.cc.coc;

public class customer { private HanderPrice hander;

public void setHander(HanderPrice hander) {
	this.hander = hander;
}
public void RequestdisCount(float discont){
   hander.pressHander(discont);	
}

}

package ww.cc.coc;

import java.util.Random;

public class Test { public static void main(String args[]){ customer cu=new customer(); cu.setHander(PriceHanderFactory.createHander()); Random rand=new Random();

		for(int i=0;i<100;i++){
			System.out.println(i+":");
			cu.RequestdisCount(rand.nextFloat());
		}
	}

}

package ww.cc.coc;

public class Ceo extends HanderPrice {

public void pressHander(float discount) {
	// TODO Auto-generated method stub
	if(discount<=0.55){
		System.out.format("%s批准啦请求，折扣为%2f\n", this.getClass().getName(),discount);
	}
	else{
		System.out.format("%s拒绝啦请求，折扣为%2f\n",this.getClass().getName(),discount);
	}
}

}

转载于:https://my.oschina.net/u/2511906/blog/823714