- package com.org;
- public interface SampleInterface {
- public void print(String s);
- }
定义两个接口的实现类
- package com.org.impl;
- import com.org.SampleInterface;
- public class ImpleOne implements SampleInterface {
- @Override
- public void print(String s) {
- // TODO Auto-generated method stub
- System.out.println(s);
- }
- }
- package com.org.impl;
- import com.org.SampleInterface;
- public class ImpleTwo implements SampleInterface {
- @Override
- public void print(String s) {
- // TODO Auto-generated method stub
- System.out.println(s);
- }
- }
定义一工厂类 实现对象的创建
- package com.org.factory;
- import com.org.SampleInterface;
- import com.org.impl.ImpleOne;
- import com.org.impl.ImpleTwo;
- public class Factory {
- public static SampleInterface getImple(String str){
- if("one".equals(str)){
- return new ImpleOne();
- }
- else{
- return new ImpleTwo();
- }
- }
- }
测试类
- package com.org.test;
- import com.org.SampleInterface;
- import com.org.factory.Factory;
- public class Test {
- /**
- * @param args
- */
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- SampleInterface face = Factory.getImple("one");
- face.print("Hello World");
- face = Factory.getImple("two");
- face.print("wa wa");
- }
- }