單例模式
		
          
		@import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);
飽漢模式：


          

          

          

          package com.jerry.design.singleton;
          


          

          

          public class FullSingle {
          

          	
          

          	private static FullSingle instance = null;
          

          	
          

          	private FullSingle(){
          

          		
          

          	}
          


          

          

          	public synchronized static FullSingle getIntance(){
          

          		
          

          		if(instance==null){
          

          			
          

          			instance = new FullSingle();
          

          		}
          

          		return instance; 
          

          				
          

          	}
          

          }
          


          

          

          餓漢模式：
          


          

          

          

          

          package com.jerry.design.singleton;
          


          

          

          public class HungrySingle {
          

          	
          

          	private static HungrySingle instance = new HungrySingle();
          

          	
          

          	private HungrySingle(){
          

          		
          

          	}
          


          

          

          	public static HungrySingle getIntance(){
          

          		
          

          		return instance; 
          

          				
          

          	}
          

          }
          


          

          

          測試代碼：
          


          

          

          

          package com.jerry.design.singleton;
          


          

          


          

          

          public class Test {
          

          	
          

          	public static void main(String[] args) {
          

          	
          

          		for(int i=0;i<=10;i++){
          

          			
          

          			System.out.println(FullSingle.getIntance());
          

          			
          

          			System.out.println(HungrySingle.getIntance());
          

          		}
          

          		
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          

          //		com.jerry.design.singleton.FullSingle@3487a5cc
          

          //		com.jerry.design.singleton.HungrySingle@eb42cbf
          


          

          

          		
          

          	}
          


          

          

          }
          


          

          


          

          

          總結: 保持單jvm下的唯一實例。
          

          

           
          

          
		
          
			posted on 2012-02-19 20:55 瘋狂的蝸牛 閱讀(78) 評論(0)  編輯  收藏  
		
          
	
          
	
	


	


          
	    
    




          





          


          

	
          
		
          
				
		
	
		
          
		
		
          只有注冊用戶登錄后才能發表評論。
          
		
          
			
		
          
			
		
          
		
		
          
		


          

		          		
		
          
		
          			
		
		
		
		
          
		
          
		
		
          
		
          
			網站導航:
		
		
          
		
          
			
		
          	
		
          
			 
		
          
		
          
			
		
          
		
          
			
				
		
          		
	
          	

          



          

				
				

			
          
			
          
				
					
          
	
          
		
          <2025年8月>
          
	
          日一二三四五六
          272829303112
          3456789
          10111213141516
          17181920212223
          24252627282930
          31123456
          

          

					

          導航
          

					

          統計
          
	
					

          公告
          
	@import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);

					

          常用鏈接
          


          留言簿
          


		
          隨筆檔案
          
		
				
			
	
		
          文章分類
          
		
				
			
	
		
          文章檔案
          
		
				
			
	



          搜索
          



          最新評論
	
          

          
	

          

				
			
          
			
			
			
			
			 

	

    







          
        
	




主站蜘蛛池模板：
天长市|
嵩明县|
岳西县|
朔州市|
海丰县|
开封县|
兴化市|
乐都县|
宾阳县|
南开区|
玉门市|
闽侯县|
临夏市|
榆中县|
宁河县|
新龙县|
白沙|
兰溪市|
大埔县|
西充县|
左贡县|
蓬安县|
漳平市|
克东县|
辽宁省|
河津市|
黄石市|
日喀则市|
华容县|
中西区|
于田县|
理塘县|
娱乐|
襄汾县|
陆丰市|
米林县|
元朗区|
滨海县|
海宁市|
张家港市|
邹平县|