good.java

观察者模式

package Observe.good;

import java.util.Observable;

public class Good extends Observable {
	
	private double price;
	private String name;
	private String madefrom;
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
		this.setChanged();
		this.notifyObservers("n:"+name);
	}
	public double getPrice() {
		return price;
	}
	public void setPrice(double price) {
		this.price = price;
		this.setChanged();
		this.notifyObservers(new Double(price));
	}
	public Good(){
		super();
	}
	public String getMadefrom() {
		return madefrom;
	}
	public void setMadefrom(String madefrom) {
		this.madefrom = madefrom;
		this.setChanged();
		this.notifyObservers("m:"+madefrom);
	}

}