java抽象工厂模式

Uml图：

抽象产品：

public abstract class Firearms {
  public abstract String getName();
}
public abstract class Bullet {
      public abstract String getName();
}

 

具体产品：

public class HandGun extends Firearms {
      @Override
      public String getName() {
            return "手x枪";
      }
}
public class Pompom extends Firearms {
      @Override
      public String getName() {
            return "机关枪";
      }
}
public class HandGunBullet extends Bullet {
      @Override
      public String getName() {
            return "手x枪子弹";
      }
}
public class PompomBullet extends Bullet {
      @Override
      public String getName() {
            return "机关枪子弹";
      }
}

 

抽象工厂：

public abstract class ArsenalFactory {
public abstract Firearms createFirearms();
public abstract Bullet createBullet();
}

 

具体工厂：

public class HandGunFactory extends ArsenalFactory{
      @Override
      public Bullet createBullet() {
            return new HandGunBullet();
      }
      @Override
      public Firearms createFirearms() {
            return new HandGun();
      }
}
public class PompomFactory extends ArsenalFactory{
      @Override
      public Bullet createBullet() {
            return new PompomBullet();
      }
      @Override
      public Firearms createFirearms() {
            return new Pompom();
      }
}

 

应用程序：

public class Application {
      public static void main(String[] args) {
            ArsenalFactory arsenalFactory = new PompomFactory();
            arsenalFactory.createBullet();
            arsenalFactory.createFirearms();
            arsenalFactory = new HandGunFactory();
            arsenalFactory.createBullet();
            arsenalFactory.createFirearms();
      }
}