设计模式-简单工厂

package com.dongl.factorymethod;

/**
 * 定义一个交通工具的总称
 */
public interface Vehicle {
    //交通工具可以行驶
    void go();
}

package com.dongl.factorymethod;

/**
 * 小汽车实现交通工具接口
 */
public class Car implements Vehicle {
    @Override
    public void go() {
        System.out.println("car go wuwuwuwuw-------------");
    }
}

package com.dongl.factorymethod;

/**
 * 公交车实现交通工具接口
 */
public class Bus implements Vehicle {
    @Override
    public void go() {
        System.out.println("bus biubiubiu -------");
    }
}

package com.dongl.factorymethod;

/**
 * 飞机实现交通工具接口
 */
public class Plane implements Vehicle {
    @Override
    public void go() {
        System.out.println("plane flying shushua--------------");
    }
}

package com.dongl.factorymethod;

/**
 * 交通工具工厂
 * 通过 Class.forName(clazz.getName()).newInstance() 返回一个具体的实体类
 */
public class VehicleFactory {
    public static Vehicle createVehicle(Class clazz){
        Vehicle moveable = null;
            try { //定义一个类型的交通工具
                 moveable = (Vehicle)Class.forName(clazz.getName()).newInstance();
            } catch (InstantiationException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                System.out.println("定义错误！");
            } catch (ClassNotFoundException e) {
                System.out.println("指定的交通工具不存在---------");
            }
        return moveable;
    }

}

package com.dongl.factorymethod;


public class Creator {
    public static void main(String[] args) {
        //造小汽车
        Vehicle moveable = VehicleFactory.createVehicle(Car.class);
        moveable.go();

        //造飞机
        Vehicle moveable1 = VehicleFactory.createVehicle(Plane.class);
        moveable1.go();

        //造公交车
        Vehicle moveable2 = VehicleFactory.createVehicle(Bus.class);
        moveable2.go();
    }
}