实验9：桥接模式

本次实验属于模仿型实验，通过本次实验学生将掌握以下内容：

1、理解桥接模式的动机，掌握该模式的结构；

2、能够利用桥接模式解决实际问题。

[实验任务一]：两个维度的桥接模式

用桥接模式实现在路上开车这个问题，其中，车可以是car或bus，路可以是水泥路或沥青路。

实验要求：

1、Vehicle.java

package org.example.shiyanjiu;

public interface Vehicle {
    public void drive();
}

2、Bus.java

package org.example.shiyanjiu;

public class Bus implements Vehicle{
    @Override
    public void drive(){
        System.out.println("公交车行驶在");
    }
}

3、Car.java

package org.example.shiyanjiu;

public class Car implements Vehicle{
    @Override
    public void drive(){
        System.out.println("小轿车行驶在");
    }
}

4、Road.java

package org.example.shiyanjiu;

public abstract  class Road {
    protected Vehicle vehicle;
    public Road(Vehicle vehicle){
        this.vehicle=vehicle;
    }
    public abstract void driveOnRoad();
}

5、CementRoad.java

package org.example.shiyanjiu;

public class CementRoad extends Road{
    public CementRoad(Vehicle vehicle){
        super(vehicle);
    }
    @Override
    public void driveOnRoad(){
        super.vehicle.drive();
        System.out.println("水泥路");
    }
}

6、AsphaltRoad.java

package org.example.shiyanjiu;

public class AsphaltRoad extends Road{
    public AsphaltRoad(Vehicle vehicle){
        super(vehicle);
    }
    @Override
    public void driveOnRoad(){
        super.vehicle.drive();
        System.out.println("沥青路");
    }
}

7、Client.java

package org.example.shiyanjiu;

public class Client {
    public static void main(String[] args) {
        Road road=new AsphaltRoad(new Car());
        road.driveOnRoad();
        System.out.println("*****************************");
        Road road1=new CementRoad(new Bus());
        road1.driveOnRoad();
    }
}