设计模式--工厂模式(三)

来源：互联网发布：mmd制作软件手机编辑：程序博客网时间：2024/06/05 06:04

package com.lrq.factory;

public abstract class AbstractFactory {
 
    public  static AbstractFactory createFactory(String type){
          if(type.equals("BMW")){
                     return new BMWFactory();
            }else if(type.equals("Benz")){
                      return new BenzFactory();
           }else{
                      throw new RuntimeException(type+"工厂不存在");
         }
   }
   
    public abstract Car createCar();
    
    public abstract Bus createBus();
    
}

package com.lrq.factory;

public class BenzFactory extends AbstractFactory {

   @Override
   public Car createCar() {
            return new BenzCar();
       }

       @Override
   public Bus createBus() {
            return new BenzBus();
       }

}

package com.lrq.factory;

public class BMWFactory extends AbstractFactory {

       @Override
   public Car createCar() {
            return new BMWCar();
        }

       @Override
   public Bus createBus() {
            return new BMWBus();
        }

}

抽象的产品类:


package com.lrq.factory;

public abstract class Bus {
   public abstract void run();
}


package com.itheima.factory;

public abstract class Car {
   public abstract void run();
}

抽象产品的实现类:


package com.lrq.factory;

public class BMWBus extends Bus {

     @Override
   public void run() {
         System.out.println("宝马卡车在跑呢");
        }

}


package com.lrq.factory;

public class BMWCar extends Car {

   @Override
   public void run() {
         System.out.println("奔驰轿车在跑呢");
        }

}
package com.lrq.factory;

public class BenzBus extends Bus{

 @Override
   public void run() {
         System.out.println("奔驰卡车在跑呢");
        }

}


package com.lrq.factory;

public class BenzCar extends Car {

  @Override
   public void run() {
         System.out.println("奔驰轿车在跑呢");
        }

}

测试类:


package com.lrq.factory;

import org.junit.Test;

public class FactoryTest {
       @Test
       public void test() {
                AbstractFactory factory = AbstractFactory.createFactory("BMW");
             Bus bus = factory.createBus();
              Car car = factory.createCar();
              bus.run();
          car.run();

      }
}

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