桥接模式

桥接模式是一种结构型模式，它主要应对的是:由于实际的需要，某个类具有两个或以上的维度变化，如果只是使用继承将无法实现这种需要，或者使得设计变得相当臃肿。

package com.fcy.model;
interface Peppery{
	String style();
}
class PepperyStyle implements Peppery{
	public String style(){
		return "辣味很重，很过瘾";
	}
}
class PlainStyle implements Peppery{
	public String style(){
		return "味道清淡，很养胃";
	}
}
abstract class AbstractNoodle{
	protected Peppery style;
	public AbstractNoodle(Peppery style){
		this.style=style;
	}
	public abstract void eat();
}
class ProkyNoodle extends AbstractNoodle{
	public ProkyNoodle(Peppery style){
		super(style);
	}
	public void eat(){
		System.out.println("这是一碗稍油腻的猪肉面条。"+super.style.style());
	}
}
class BeefNoodle extends AbstractNoodle{
	public BeefNoodle(Peppery style){
		super(style);
	}
	public void eat(){
		System.out.println("这是一碗美味的牛肉面条。"+super.style.style());
	}
}
public class BridgeTest {
	public static void main(String[] args) {
		AbstractNoodle noodle1=new BeefNoodle(new PepperyStyle());
		noodle1.eat();
		AbstractNoodle noodle2=new BeefNoodle(new PlainStyle());
		noodle2.eat();
		AbstractNoodle noodle3=new ProkyNoodle(new PepperyStyle());
		noodle3.eat();
		AbstractNoodle noodle4=new ProkyNoodle(new PlainStyle());
		noodle4.eat();
	}
}

运行结果：