JAVA设计模式之抽象工厂模式

抽象工厂模式代码

 产品类： 

//发动机以及型号  public interface Engine {  }  public class EngineA extends Engine{      public EngineA(){          System.out.println("制造-->EngineA");      }  }  public class EngineBextends Engine{      public EngineB(){          System.out.println("制造-->EngineB");      }  }  //空调以及型号  public interface Aircondition {  }  public class AirconditionA extends Aircondition{      public AirconditionA(){          System.out.println("制造-->AirconditionA");      }  }  public class AirconditionB extends Aircondition{      public AirconditionB(){          System.out.println("制造-->AirconditionB");      }  } 

创建工厂类：

//创建工厂的接口  
public interface AbstractFactory {  
    //制造发动机
    public Engine createEngine();
    //制造空调 
    public Aircondition createAircondition(); 
}  


//为宝马320系列生产配件  
public class FactoryBMW320 implements AbstractFactory{  
      
    @Override  
    public Engine createEngine() {    
        return new EngineA();  
    }  
    @Override  
    public Aircondition createAircondition() {  
        return new AirconditionA();  
    }  
}  
//宝马523系列
public class FactoryBMW523 implements AbstractFactory {  
  
     @Override  
    public Engine createEngine() {    
        return new EngineB();  
    }  
    @Override  
    public Aircondition createAircondition() {  
        return new AirconditionB();  
    }  


} 

客户:

public class Customer {  
    public static void main(String[] args){  
        //生产宝马320系列配件
        FactoryBMW320 factoryBMW320 = new FactoryBMW320();  
        factoryBMW320.createEngine();
        factoryBMW320.createAircondition();
          
        //生产宝马523系列配件  
        FactoryBMW523 factoryBMW523 = new FactoryBMW523();  
        factoryBMW320.createEngine();
        factoryBMW320.createAircondition();
    }  
}

关于抽象工厂模式与工厂方法模式的区别，这里就不说了，感觉多看几遍例子就能理解，还有很多提到的产品族、等级结构等概念，说了反而更难理解。