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
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£ ......
Ê×ÏÈ¿´Çå³þ¼¸ÖÖ³£ÓõÄ×Ö·û¼¯±àÂë(javaÓïÑÔÊDzÉÓÃunicode×Ö·û¼¯±àÂëÀ´±íʾ×Ö·ûÓë×Ö·û´®µÄ)£º
¡¡¡¡ASCII(American Standard Code for Information Interchange£¬ÃÀ¹úÐÅÏ¢»¥»»±ê×¼´úÂë)£¬ÊÇ»ùÓÚ³£ÓõÄÓ¢ÎÄ×Ö·ûµÄÒ»Ì×µçÄÔ±àÂëϵͳ¡£ÎÒÃÇÖªµÀÓ¢ÎÄÖо³£Ê¹ÓõÄ×Ö·û¡¢Êý×Ö·ûºÅ±»¼ÆËã»ú´¦Àíʱ¶¼ÊÇÒÔ¶þ½øÖÆÂëµÄÐÎʽ³öÏֵġ£ÕâÖÖ¶þ½ø ......
ʲôÊÇ·´Éä
java³ÌÐò¿ÉÒÔÔÚÔËÐÐÆÚ¼ä¶¯Ì¬µÄ¼ÓÔØ¡¢½âÎöºÍʹÓÃһЩÔÚ±àÒë½×¶Î²¢²»È·¶¨µÄÀàÐÍ£¬ÕâÒ»»úÖÆ±»³ÆÎª“·´É䣨reflection£©”»òÕß“ÄÚÊ¡£¨introspection£©”.
·´Éä»úÖÆÌṩµÄ¹¦ÄÜ
1£¬¼ÓÔØÔËÐÐʱ²ÅÄÜÈ·¶¨µÄÀàÐÍ
  ......
Java NIOÀà¿âSelector»úÖÆ½âÎö£¨ÉÏ£©
ÕÔï¿¡¡¡¡ ³Âð©
http://blog.csdn.net/haoel
Ò»¡¢ ǰÑÔ
×Ô´ÓJ2SE 1.4°æ±¾ÒÔÀ´£¬JDK·¢²¼ÁËȫеÄI/OÀà¿â£¬¼ò³ÆNIO£¬Æä²»µ«ÒýÈëÁËȫеĸßЧµÄI/O»úÖÆ£¬Í¬Ê±£¬Ò²ÒýÈëÁ˶à·¸´ÓõÄÒ첽ģʽ¡£NIOµÄ°üÖÐÖ÷Òª°üº¬ÁËÕâÑù¼¸ÖÖ³éÏóÊý¾ÝÀàÐÍ£º
......
java¼ÆËãʱ¼ä²î
ÎÄÕ·ÖÀà:Java±à³Ì
±ÈÈ磺ÏÖÔÚÊÇ2004-03-26 13£º31£º40
¹ýÈ¥ÊÇ£º2004-01-02 11£º30£º24
ÎÒÏÖÔÚÒª»ñµÃÁ½¸öÈÕÆÚ²î£¬²îµÄÐÎʽΪ£ºXXÌìXXСʱXX·ÖXXÃë
·½·¨Ò»£º
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try
{
Date d1 = df.parse("2004-03-26 13:31:40");
......