桥接模式8（11）

 桥接是先有桥，才有两端的东西（可以分离某个东西）
 适配是先有两边的东西，才有适配器

 

package structural.pratice;

public class BridatePMain {

    public static void main(String[] args) {
        BridgeP bp = new BridgePRight();
        CrossBridge cross = new CrossBridge(bp);
        cross.goRight();
    }
}
//目的地与桥绑定
interface BridgeP{
    public  void crossBridge();
}

//在桥右边
class BridgePRight implements BridgeP{

    @Override
    public void crossBridge() {
        System.out.println("我到了桥右边");
    }
}


abstract class BridgePLeft{
    
    protected BridgeP bp;
    public BridgePLeft(BridgeP bp){
        this.bp = bp;
    }
    public abstract void goRight();
}

class CrossBridge extends BridgePLeft{

    public CrossBridge(BridgeP bp) {
        super(bp);
    }
    
    @Override
    public void goRight() {
        System.out.println("我要过桥");
        bp.crossBridge();
    }
}