Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

java ÈÕÆÚ²î ʵÏÖ(×·ÖÖÓǰ)¹¦ÄÜ

½ñÌì¾­ÀíÈÃдһ¸ö£¬¸ù¾ÝÐÅÏ¢ÉÏ´«Ê±¼ä£¬ÏÔʾ£¬£¿·ÖÖÓǰ£¬£¿Ð¡Ê±Ç°£¬£¿Ììǰ£¬ÀàËÆqq¿Õ¼ä·¢±íµÄÐÄÇéÈÕÆÚ£»
ÓÃÁËÒ»¸ö×ÔÎҸоõ±¿µÄ·½·¨£¬²»¹ý»¹ÊÇʵÏÖÁË£¬ºÇºÇºÇ
    public static String getCompareTime(String filetime){
     //·µ»ØµÄ×Ö·û´®
    String retStr ="";
    //´«ÈëµÄÈÕÆÚÊÇ2008-9-12µÈ£¬²»×÷´¦Àí
    if(filetime.indexOf("-")>0){
     retStr =filetime;
    }
    else{
     try{
      DateFormat day = new SimpleDateFormat("dd");
      DateFormat hour = new SimpleDateFormat("HH");
      DateFormat minute = new SimpleDateFormat("mm");
         Date today = new Date();
         //µÃµ½µ±Ç°Ê±¼äµÄÈÕ£¬Ð¡Ê±£¬·ÖÖÓ
         int nowDay =Integer.parseInt(day.format(today));
         int nowHour =Integer.parseInt(hour.format(today));
         int nowMinute =Integer.parseInt(minute.format(today));
//         System.out.println("nowDay:"+nowDay);
//         System.out.println("nowDay:"+nowHour);
//         System.out.println("nowDay:"+nowMinute);
         //¸ñʽ»¯´«ÈëµÄ×Ö·û´®
      DateFormat df = new SimpleDateFormat("yy/MM/dd HH:mm:ss");
         Date dataTime = df.parse(filetime);  
         //µÃµ½´«Èëʱ¼äµÄÈÕ£¬Ð¡Ê±£¬·ÖÖÓ
         int dataDay =Integer.parseInt(day.format(dataTime));
         int dataHour =Integer.parseInt(hour.format(dataTime));
 &n


Ïà¹ØÎĵµ£º

javaµÄÏß³Ìͬ²½»úÖÆsynchronized¹Ø¼ü×ÖµÄÀí½â

ÓÉÓÚͬһ½ø³ÌµÄ¶à¸öÏ̹߳²ÏíͬһƬ´æ´¢¿Õ¼ä£¬ÔÚ´øÀ´·½±ãµÄͬʱ£¬Ò²´øÀ´ÁË·ÃÎʳåÍ»Õâ¸öÑÏÖØµÄÎÊÌâ¡£JavaÓïÑÔÌṩÁËרÃÅ»úÖÆÒÔ½â¾öÕâÖÖ³åÍ»£¬ÓÐЧ±ÜÃâÁËͬһ¸öÊý¾Ý¶ÔÏó±»¶à¸öÏß³Ìͬʱ·ÃÎÊ¡£
ÐèÒªÃ÷È·µÄ¼¸¸öÎÊÌ⣺
       1)synchronized¹Ø¼ü×Ö¿ÉÒÔ×÷Ϊº¯ÊýµÄÐÞÊηû£¬Ò²¿É×÷Ϊº¯ÊýÄÚµÄÓï¾ä£ ......

JavaÉè¼ÆÄ£Ê½Ö®Flyweightģʽ


GOF£ºÔËÓù²Ïí¼¼ÊõÓÐЧµØÖ§³Ö´óÁ¿Ï¸Á£¶ÈµÄ¶ÔÏó¡£
 
½âÊÍһϸÅÄҲ¾ÍÊÇ˵ÔÚÒ»¸öϵͳÖÐÈç¹ûÓжà¸öÏàͬµÄ¶ÔÏó£¬ÄÇôֻ¹²ÏíÒ»·Ý¾Í¿ÉÒÔ
ÁË£¬²»±ØÃ¿¸ö¶¼È¥ÊµÀý»¯Ò»¸ö¶ÔÏó¡£±ÈÈç˵£¨ÕâÀïÒýÓÃGOFÊéÖеÄÀý×Ó£©Ò»¸öÎı¾ÏµÍ³£¬Ã¿¸ö×Öĸ¶¨Ò»¸ö¶ÔÏó£¬ÄÇô´óСд×Öĸһ¹²¾ÍÊÇ52¸ö£¬ÄÇô¾ÍÒª¶¨Òå
52¸ö¶ÔÏó¡£Èç¹ûÓÐÒ»¸ö1MµÄÎ ......

javaµÄdoubleµÄ¾«¶ÈÎÊÌâ

ÔÚjavaÖУ¬Ê¹ÓÃdouble½øÐÐÔËË㣬ÓÐʱ»á³öÏÖ¾«¶È¶ªÊ§µÄÎÊÌ⣬ֵ»áÓÐÄÇô0.00000***1Æ«²îµÄÆ«²î£¬µ¼ÖÂÆ¥ÅäУÑé³£³£³öÏÖÎÊÌâ
½â¾ö·½°¸ÈçÏÂ:
  /** 
     * ¶ÔdoubleÊý¾Ý½øÐÐÈ¡¾«¶È. 
     * @param value  doubleÊý¾Ý. 
     * ......

Java NIOÀà¿âSelector»úÖÆ½âÎö£¨Ï£©

 
Java NIOÀà¿âSelector»úÖÆ½âÎö£¨Ï£©
 
ÕÔï¿¡¡¡¡ ³Âð©
http://blog.csdn.net/haoel
 
<<<<µã´Ë²é¿´±¾ÎÄÉÏÆª
Îå¡¢  ÃÔ»ó²»½â : ΪʲôҪ×Ô¼ºÏûºÄ×ÊÔ´£¿
 
ÁîÈ˲»½âµÄÊÇΪʲôÎÒÃǵÄJavaµÄNew I/OÒªÉè¼Æ³ÉÕâ¸öÑù×Ó£¿Èç¹û˵ÀϵÄI/O²»Äܶà·¸´Óã¬ÈçÏÂͼËùʾ£¬Òª¿ªN¶àµÄÏß³ÌÈ¥ ......

JAVAÏß³ÌÖ®Áù£ºÏ̵߳ÄͨÐÅ

      ËäÈ»¾­³£´´½¨¶à¸ö²»ÏàͬµÄÏß³ÌÀ´Íê³É²»Ïà¹ØµÄÈÎÎñ£¬È»¶øÓÐʱִÐеÄÈÎÎñ¿ÉÄÜÓÐÒ»¶¨ÁªÏµ£¬ÕâÑù¾ÍÐèҪʹÕâЩÏ߳̽øÐн»»¥¡£±ÈÈçÓÐÒ»¸öË®ÌÁ£¬ÆäÖжÔË®ÌÁ²Ù×÷Î޷ǰüÀ¨“½øË®”ºÍ“ÅÅË®”£¬ÕâÁ½¸öÐÐΪ¸÷×Ô´ú±íÒ»¸öỊ̈߳¬µ±Ë®ÌÁÖÐûÓÐˮʱ£¬“ÅÅË®”ÐÐΪ²»ÄÜÔÙ½øÐУ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ