Tutorial 9_桥接模式

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.画出对应的类图；

 

2.提交源代码；

3.注意编程规范。

package ruanjiansheji.shiyan9;

public class Bus implements Vehicle{
    @Override
    public void drive() {
        System.out.print("大巴");
    }
}
package ruanjiansheji.shiyan9;

public class Car implements Vehicle{
    @Override
    public void drive()
    {
        System.out.print("小轿车");
    }
}
package ruanjiansheji.shiyan9;

public class CementRoad extends Road{
    public CementRoad(Vehicle vehicle)
    {
        super(vehicle);
    }

    @Override
    public void driveOnRoad()
    {
        super.vehicle.drive();
        System.out.println("行驶在水泥路");
    }
}
package ruanjiansheji.shiyan9;

public class Main {
    public static void main(String[] args) {
        Road unpavedRoad = new UnpavedRoad(new Bus());
        unpavedRoad.driveOnRoad();
        System.out.println("-------------------");
        Road cementRoad = new CementRoad(new Car());
        cementRoad.driveOnRoad();
    }
}
package ruanjiansheji.shiyan9;

public abstract class Road {
    protected Vehicle vehicle;

    public Road(Vehicle vehicle) {
        this.vehicle = vehicle;
    }

    public abstract void driveOnRoad();
}
package ruanjiansheji.shiyan9;

public class UnpavedRoad extends Road{
    public UnpavedRoad(Vehicle vehicle)
    {
        super(vehicle);
    }

    @Override
    public void driveOnRoad()
    {
        super.vehicle.drive();
        System.out.println("行驶在石子路");
    }
}
package ruanjiansheji.shiyan9;

public interface Vehicle {
    public void drive();
}