public interface Product{} 

public class Washer implements Product{ 
  public Washer(){ 
    System.out.println("洗衣机被制造了"); 
  } 
} 
 
public class Icebox implements Product{ 
  public Icebox(){ 
    System.out.println("冰箱被制造了"); 
  } 
} 
 
public class AirCondition implements Product{ 
  public Icebox(){ 
    System.out.println("空调被制造了"); 
  } 
} 

public class SimpleFactory { 
   
  public static Product factory(String productName) throws Exception{ 
    if(productName.equals("Washer")){ 
      return new Washer(); 
    }else if(productName.equals("Icebox")){ 
      return new Icebox(); 
    }else if(productName.equals("AirCondition")){ 
      return new AirCondition(); 
    }else{ 
      throw new Exception("没有该产品"); 
    } 
  } 
} 

public static void main(String[] args) { 
  try { 
       SimpleFactory.factory("Washer"); 
       SimpleFactory.factory("Icebox"); 
       SimpleFactory.factory("AirCondition"); 
      } catch (Exception e) { 
    e.printStackTrace(); 
  } 
} 

public interface Factory{ 
 public Product create(); 
} 

public interface Product{} 

public class Washer implements Product{ 
  public Washer(){ 
    System.out.println("洗衣机被制造了"); 
  } 
} 
 
public class Icebox implements Product{ 
  public Icebox(){ 
    System.out.println("冰箱被制造了"); 
  } 
} 
 
public class AirCondition implements Product{ 
  public Icebox(){ 
    System.out.println("空调被制造了"); 
  } 
} 

//创建洗衣机的工厂 
public class CreateWasher implements Factory{ 
  public Product create(){ 
     return new Washer(); 
  } 
} 
 
//创建冰箱的工厂 
public class CreateIcebox implements Factory{ 
  public Product create(){ 
     return new Icebox(); 
  } 
} 
 
//创建空调的工厂 
public class CreateAirCondition implements Factory{ 
  public Product create(){ 
     return new AirCondition(); 
  } 
} 

//洗衣机接口 
public interface Washer{ 
} 
 
//冰箱接口 
public interface Icebox{ 
} 

//洗衣机-A 
public class WasherA implements Washer{ 
  public WasherA(){ 
    System.out.println("洗衣机-A被制造了"); 
  } 
} 
//洗衣机-B 
public class WasherB implements Washer{ 
  public WasherB(){ 
    System.out.println("洗衣机-B被制造了"); 
  } 
} 
//冰箱-A 
public class IceboxA implements Icebox{ 
  public IceboxA(){ 
    System.out.println("冰箱-A被制造了"); 
  } 
} 
//冰箱-B 
public class IceboxB implements Icebox{ 
  public IceboxB(){ 
    System.out.println("冰箱-B被制造了"); 
  } 
} 

public interface Factory{ 
    public Washer createWasher(); 
    public Icebox createIcebox(); 
} 

//创建型号为A的产品工厂 
public class FactoryA implements Factory{ 
    //创建洗衣机-A 
    public Washer createWasher(){ 
      return new WasherA(); 
    } 
    //创建冰箱-A 
    public Icebox createIcebox(){ 
      return new IceboxA(); 
    } 
} 
//创建型号为B的产品工厂 
public class FactoryB implements Factory{ 
    //创建洗衣机-B 
    public Washer createWasher(){ 
      return new WasherB(); 
    } 
    //创建冰箱-B 
    public Icebox createIcebox(){ 
      return new IceboxB(); 
    } 
}