不懂的请看注解，有故事背景的
package dao;
/**
* 定义一个人类的统称
* @author Mr.Zhang
*
*/
public interface Human {
/**
* 首先定义什么事人类
*/
//会笑的
public void laugh();
//会哭的
public void cry();
//会说话的
public void talk();
//性别
public void sex();
}
package abstractBase;
import dao.Human;
/**
* 黑人
* @author Mr.Zhang
*
*/
public abstract class AbstractBlackHuman implements Human {
@Override
public void laugh() {
System.out.println("黑人会笑");
}
@Override
public void cry() {
System.out.println("黑人会哭");
}
@Override
public void talk() {
System.out.println("黑人会说话");
}
}
package abstractBase;
import dao.Human;
/**
* 白人
* @author Mr.Zhang
*
*/
public abstract class AbstractWhiteHuman implements Human {
@Override
public void laugh() {
System.out.println("白人会笑");
}
@Override
public void cry() {
System.out.println("白人会哭");
}
@Override
public void talk() {
System.out.println("白人会说话");
}
}
package abstractBase;
import dao.Human;
/**
* 黄种人
* @author Mr.Zhang
*
*/
public abstract class AbstractYellowHuman implements Human {
@Override
public void laugh() {
System.out.println("黄种人会笑");
}
@Override
public void cry() {
System.out.println("黄种人会哭");
}
@Override
public void talk() {
System.out.println("黄种人会说话");
}
}
package daoimpl;
import abstractBase.AbstractBlackHuman;
public class BlackFemaleHuman extends AbstractBlackHuman {
@Override
public void sex() {
System.out.println("该黑人性别为女！");
}
}
package daoimpl;
import abstractBase.AbstractBlackHuman;
public class BlackMaleHuman extends AbstractBlackHuman {
@Override
public void sex() {
System.out.println("该黑人性别为男！");
}
}
package daoimpl;
import abstractBase.AbstractWhiteHuman;
public class WhiteFemaleHuman extends AbstractWhiteHuman {
@Override
public void sex() {
System.out.println("该白人性别为女！");
}
}
package daoimpl;
import abstractBase.AbstractWhiteHuman;
public class WhiteMaleHuman extends AbstractWhiteHuman {
@Override
public void sex() {
System.out.println("该白人性别为男！");
}
}
package daoimpl;
import abstractBase.AbstractYellowHuman;
public class YellowFemaleHuman extends AbstractYellowHuman {
@Override
public void sex() {
System.out.println("该黄种人的性别为女！");
}
}
package daoimpl;
import abstractBase.AbstractYellowHuman;
public class YellowMaleHuman extends AbstractYellowHuman {
@Override
public void sex() {
System.out.println("该黄种人的性别为男！");
}
}
package Factory;
import dao.Human;
/**
* 编写一个抽象类，根据enum创建一个人类出来
* @author Mr.Zhang
*
*/
public abstract class AbstractHumanFactory implements HumanFactory {
protected Human createHuman(HumanEnum humanEnum){
Human human = null;
if(!humanEnum.getValue().equals("")){
try {
//直接产生一个实例
human=(Human) Class.forName
(humanEnum.getValue()).newInstance();
} catch (Exception e) {
//因为使用了enum，这个种异常情况不会产
生了，除非你的enum有问题；
e.printStackTrace();
}
}
return human;
}
}
package Factory;
import dao.Human;
/**
* 女性创建工厂，只创建女性
* @author Mr.Zhang
*
*/
public class FemaleHumanFactory extends AbstractHumanFactory {
/**
* 创建一个女性黄种人
*/
@Override
public Human createYellowHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.YellowFemaleHuman);
}
/**
* 创建一个女性黑人
*/
@Override
public Human createBlackHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.BlackFemaleHuman);
}
/**
* 创建一个女性白人
*/
@Override
public Human createWhiteHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.WhiteFemaleHuman);
}
}
package Factory;
/**
* 世界上有哪些类型的人，列出来
* @author Mr.Zhang
*（jdk1.5↑才开始引入的类型）
*/
public enum HumanEnum {
BlackFemaleHuman("daoimpl.BlackFemaleHuman"),
BlackMaleHuman("daoimpl.BlackMaleHuman"),
WhiteFemaleHuman("daoimpl.WhiteFemaleHuman"),
WhiteMaleHuman("daoimpl.WhiteMaleHuman"),
YellowFemaleHuman("daoimpl.YellowFemaleHuman"),
YellowMaleHuman("daoimpl.YellowMaleHuman");
private String value="";
private HumanEnum(String value){
this.value=value;
}
public String getValue(){
return value;
}
}
package Factory;
import dao.Human;
/**
* 工厂接口
* 这次定一个接口，应该要造不同性别的人，需要不同的生产线
* 那这个八卦炉必须可以制造男人和女人
* @author Mr.Zhang
* 八卦炉
*/
public interface HumanFactory {
//造黄种人
public Human createYellowHuman();
//造黑人
public Human createBlackHuman();
//造白人
public Human createWhiteHuman();
}
package Factory;
import dao.Human;
/**
* 男性创建工厂,只创建男性
* @author Mr.Zhang
*
*/
public class MaleHumanFactory extends AbstractHumanFactory {
/**
* 创建一个男性黄种人
*/
@Override
public Human createYellowHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.YellowMaleHuman);
}
/**
* 创建一个男性黑人
*/
@Override
public Human createBlackHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.BlackMaleHuman);
}
/**
* 创建一个男性白人
*/
@Override
public Human createWhiteHuman() {
// TODO Auto-generated method stub
return super.createHuman(HumanEnum.WhiteMaleHuman);
}
}
package test;
import Factory.FemaleHumanFactory;
import Factory.HumanFactory;
import Factory.MaleHumanFactory;
import dao.Human;
/**
* 测试类（NvWa）
* @author Mr.Zhang
*女娲建立起了两条生产线，分别是：
*男性生产线
*女性生产线
*/
public class NvWa {
public static void main(String[] args) {
//第一条生产线，男性生产线
HumanFactory maleFoctory=new MaleHumanFactory();
//第二条生产线，女性生产线
HumanFactory femaleFactory = new FemaleHumanFactory();
//生产线建立完毕，开始生产男性黄种人了
Human maleYellowHuman=maleFoctory.createYellowHuman();
//开始生产女性黄种人了
Human femaleYellowHuman = femaleFactory.createYellowHuman();
maleYellowHuman.cry();
maleYellowHuman.laugh();
maleYellowHuman.sex();
System.out.println("-------------------");
femaleYellowHuman.cry();
femaleYellowHuman.laugh();
femaleYellowHuman.sex();
}
}原文地址：http://zhangzhipeng.blog.51cto.com/9115459/1581084
