Java代码示范设计模式之工厂模式

Java代码演示设计模式之工厂模式
转自：http://blog.csdn.net/communicate_/article/details/8274227

package com.sun.java.design;
//定义一个接口
interface Computer {
 public void type();
}
class Dell implements Computer {
 @Override
 public void type() {
  System.out.println("戴尔n5110");
 }
}
class Lenovo implements Computer {
 @Override
 public void type() {
  System.out.println("彪悍的小y");
 }
}
class Factory {
 public Computer produceComputer(String name) {
  if (name.equalsIgnoreCase("dell")) {
   return new Dell();
  } else if (name.equalsIgnoreCase("lenovo")) {
   return new Lenovo();
  } else {
   return null;
  }
 }
}
public class FactoryPattern {
 public static void main(String[] args) {
  Factory f = new Factory();
  Computer c1 = f.produceComputer("dell");
  Computer c2 = f.produceComputer("lenovo");
  c1.type();
  c2.type();
 }
}