JavaÊý×Öת×Ö·û´®Ç°Ãæ×Ô¶¯²¹0µÄʵÏÖ
±¾ÎÄÔÖ·£ºhttp://blogger.org.cn/blog/more.asp?name=hongrui&id=46926
/**
* JavaÀïÊý×Öת×Ö·û´®Ç°Ãæ×Ô¶¯²¹0µÄʵÏÖ¡£
*
*/
public class TestStringFormat {
public static void main(String[] args) {
int youNumber = 19;
// 0 ´ú±íÇ°Ãæ²¹³ä0
// 4 ´ú±í³¤¶ÈΪ4
// d ´ú±í²ÎÊýΪÕýÊýÐÍ
String str = String.format("%02d", youNumber);
System.out.println(str); // 01
}
}
Ïà¹ØÎĵµ£º
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔǰ£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......
/*
* CookieSupport.java
* Copyright (C) 2007-3-19 <JustinLei@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version ......
JavaÓʼþȺ·¢Æ÷
¹¦ÄÜ˵Ã÷£º
1¡¢ÅúÁ¿Ñ»··¢ËÍÓʼþ
2¡¢·¢ËÍHTMLÎļþ£¬´ý·¢Ë͵ÄÓʼþÒÔhtmµÄ¸ñʽ´æ·Å£¬¿ÉÒÔÊÇÍøÂçÉϵÄhtmÎļþ£¬¿ÉÒÔÊDZ¾µØµÄhtmÎļþ
3¡¢¿ÉÒÔÖ¸¶¨·¢Ë͸½¼þµÄĿ¼£¬ÏµÍ³»á¼ÓÔØÖ¸¶¨Ä¿Â¼µÄÈ«²¿¸½¼þÒ»Æð·¢ËÍ
4¡¢·¢ËÍÓʼþÒÔtxtÎļþ±£´æ£¬Ã¿Ðб£´æÒ»¸öÓʼþ ......
ÖÐÎÄÂÒÂë½â¾ö·½°¸£º
Êý¾Ý¿âÂÒÂë:
UTF-8¶ÔÖÐÎÄÓÃ3¸ö×Ö½ÚÀ´±íʾ
String s =”·ÉÏè”;
byte[] utf8 = s.getBytes(“utf-8”);//»ñµÃutf-8±àÂëµÄ×Ö½ÚÖµ
System….(new String(utf8,”gbk”);//ÓÃGBK±àÂë¸ñʽ¶ÔUTF-8±àÂë¸ñʽµÄ×Ö½ÚÊý×é½øÐнâÂ룬½«²úÉúÂÒÂë¡£
²é¿´Êý¾Ý¿âµÄ× ......