java设计模式之工厂模式实例详解

package org.test.design.f;
/**
 *
 * @author lushuaiyin
 *
 */
public interface IFactory {
  IProduct createProduct();
}

package org.test.design.f;
public class CarFactory implements IFactory {
  public IProduct createProduct() {
    return new Car();
  }
}

package org.test.design.f;
public class ComputerFactory implements IFactory {
  public IProduct createProduct() {
    return new Computer();
  }
}

package org.test.design.f;
public interface IProduct {
  void work();
}

package org.test.design.f;
public class Car implements IProduct{
  public void work() {
    System.out.println("I am car.");
  }
}

package org.test.design.f;
public class Computer implements IProduct{
  public void work() {
    System.out.println("I am Computer.");
  }
}

package org.test.design.f;
public class TestMain {
  /**
   * @param args
   */
  public static void main(String[] args) {
    IFactory carFactory=new CarFactory();
    IProduct car=(IProduct)carFactory.createProduct();
    car.work();
    IFactory pcFactory=new ComputerFactory();
    IProduct pc=(IProduct)pcFactory.createProduct();
    pc.work();
  }
}
/*打印
I am car.
I am Computer.
*/