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

javaÖÐÉú³É32Î»Ëæ»úID

 Ôںܶàʱºò£¬ÎÒÃÇÐèÒª×Ô¶¯Éú³ÉÓÀÔ¶²»»áÖØ¸´µÄID£¬Òò´ËÎÒÃÇ»áÓõ½ÒÔϵĴúÂëÀ´ÊµÏÖ£º
×¢Ò⣺ÐèÒª¼ÓÈëÁ½¸öapacheµÄ°ü,´úÂëºÍ°üÇë´Óhttp://www.blogjava.net/afei0922/articles/129589.html ÏÂÔØ
package cn.com.cinda.rtx.state;
import org.apache.commons.id.Hex;

public class RandomCode {
public RandomCode() {
}
/** *//**
* @return String Éú³É32λµÄËæ»úÊý×÷Ϊid
*/
public String getCode() {
return new String(Hex.encodeHex(org.apache.commons.id.uuid.UUID
.randomUUID().getRawBytes()));
}
}


Ïà¹ØÎĵµ£º

Java ×Ö·û´®µÄ ´¦Àí

 public class StringUtil
{
public static String convertToStringWithTrim(Object object)
{
if(null == object)
{
return null;
}

String returnStr = (String)object;

return Trim(returnStr);
}
public static String Trim(String str)
{
if(IsEmpty(str))
{
r ......

Java NIO APIÏê½â

 
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 ......

ÔÚEclipseºÍNetBeansÖе¼ÈëJava API

 ¹¤ÓûÉÆÆäÊ£¬±ØÏÈÀûÆäÆ÷¡£ÊìϤ¿ª·¢»·¾³¿ÉÒÔÈÃÄã¸ü¿ì¸üºÃ¸üÊæ·þµØ¿ª·¢Èí¼þ¡£¾ÍÈçͬVC/.net¿ª·¢ÈËÔ±Àë²»¿ªmsdn£¬java¿ª·¢ÈËÔ±ÍùÍùÒ²Àë²»¿ªjava API¡£ÏÂÃæ½éÉÜÏÂÈçºÎÔÚEclipseºÍNetBeansÖе¼Èëjava API¡£Ê¹Ö®¿ÉÒÔ·½±ã¿ìËٵزéÕÒ£¬¶¨Î»¡£
¡¡¡¡±¾ÎÄÊʺÏÓë¸Õ¸Õ½Ó´¥Eclipse»òNetBeansµÄjava¿ª·¢ÈËÔ±£¬»òÕßÊÇÓо­ÑéµÄʹÓÃEc ......

JAVA³õѧÕß±ØÖª

 
1.     Java Ô´ÎļþÖÐ×î¶àÖ»ÄÜÓÐÒ»¸öpublicÀà,¶øÇÒÕâ¸öÀàµÄÀàÃûÒªºÍÎļþÃûÒ»ÖÂ.ÆäËûÀàµÄ¸öÊý²»ÏÞ¡£
2.    ÃæÏò¶ÔÏó³ÌÐòÉè¼ÆµÄÌØÕ÷£¨·â×°ÐÔ£©£¨¼Ì³Ð£©£¨¶à̬ÐÔ£©
3.    ½Ó¿ÚÊÇÓÉ£¨³éÏó·½·¨£©ºÍ£¨³£Á¿£©×é³ÉµÄÌØÊâÀà
4.    ÓÃstaticÐÞÊεķ½·¨Ê ......

Java ·ºÐÍÉÏϽçÎÊÌâ

java·ºÐÍÖеÄsuper¹Ø¼ü×Ö²»Ì«³£Óã¬Ò²²»Ì«ºÃÀí½â£¬½ñÌìÓÖ´ÓÍ·¿´ÁË¿´javaµÄ·ºÐÍ»úÖÆ£¬×÷Ò»¼Ç¼¡£
ÉϽç:
ÉϽçÓÃextends¹Ø¼ü×ÖÉùÃ÷£¬±íʾ²ÎÊý»¯µÄÀàÐÍ¿ÉÄÜÊÇËùÖ¸¶¨µÄÀàÐÍ£¬»òÕßÊÇ´ËÀàÐ͵Ä×ÓÀà¡£ÈçÏÂÃæµÄ´úÂ룺
Java´úÂë
public void upperBound(List<? extends Date> list, Date& ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ