装饰模式

装饰模式，动态地给一个对象添加一些额外的职责，就增加功能来说，装饰模式比生成子类更为灵活。

package com.jshx.finery;

public class Person {
	private String name;
	
	public void show(){
		System.out.print("装饰的"+name);
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
}

package com.jshx.finery;

/**
 * 抽象服饰类
 * @author duanpf
 *
 */
public class Finery extends Person{
	private Person ps;
	
	//打扮
	public void Decorate(Person ps){
		this.ps = ps;
	}
	
         @Override
	public void show(){
		if(ps != null){
			ps.show();
		}
	}
}

package com.jshx.finery;

public class TShirts extends Finery {

	@Override
	public void show() {
		System.out.print("大T恤 ");
		super.show();
	}

}

package com.jshx.finery;

public class BigTrouser extends Finery {

	@Override
	public void show() {
		System.out.print("垮裤 ");
		super.show();
	}

}

package com.jshx.finery;

public class FineryTest {
	
	public static void main(String[] args) {
		Person per = new Person();
		per.setName("段飞");
		System.out.println("第一种打扮：");
		TShirts ts = new TShirts();
		BigTrouser bt = new BigTrouser();
		
		bt.Decorate(per);
		ts.Decorate(bt);
		ts.show();
		
		System.out.println("");
		System.out.println("第二种打扮：");
		ts.Decorate(per);
		bt.Decorate(ts);
		bt.show();
	}
}