flyweight1.java

郭克华j2ee高级框架实战教学视频源代码 这个是比较值得一看的 由郭克华博士在总结多年Java培训的基础上

import java.util.*;

class Word{//编写享元类
	public String content;
	public String key;
	public Word(String content,String key){
		System.out.println("构造函数");
		this.content = content;
		this.key = key;
		}
	}

//管理享元,用池，可以将享元用HashMap存储
class WordPool{
	private static HashMap pool = new HashMap();
	public static Word getWord(String key,String content){
		Word word = (Word)pool.get(key);		
		if(word==null){
			word = new Word(content,key);
			pool.put(key,word);
			}
		return word;
		}
	}

public class Flyweight1{
	public static void main(String args[]){
		Word w1 = WordPool.getWord("刘德华","001");
		Word w2 = WordPool.getWord("张学友","002");
		Word w3 = WordPool.getWord("刘德华","001");
		Word w4 = WordPool.getWord("刘德华","001");
		
		}
	}