factory.java

java编程百例

package ch10.section01;

public class Factory {
  public Window CreateWindow(String type) {
    if (type.equals("Big")) {
      return new WindowBig();
    }
    else if (type.equals("Small")) {
      return new WindowSmall();
    }
    else {
      return new WindowBig();
    }
  }

  public static void main(String[] args) {
    Factory myFactory = new Factory();
    Window myBigWindow = myFactory.CreateWindow("Big");
    myBigWindow.func();

    Window mySmallWindow = myFactory.CreateWindow("Small");
    mySmallWindow.func();
  }
}