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

java½âÎö×Ö·û´®

ÏÖÔÚÓиö¡°E:\imag\001.gif¡±ÐÎʽ×Ö·û´®£¬½«ÆäͼƬÃû×Ö½âÎö³öÀ´£¬Ôõô×ö°¡£¿
Java code:

String str = "E:\\imag\\001.gif";
str = str.substring(str.lastIndexOf("\\")+1);
System.out.println(str);



Ðֵܣ¬ÄãÕâ¸ö ͼƬ»¹ÓÐÆäËû¸ñʽµÄ°É¡£¡£¡£±ÈÈç jpg£¿png£¿

Java code:
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class SimRex {

/**
* @param args
*/
public static void main(String[] args) {
String str="E:\\imag\\001.gif";
Pattern p = Pattern.compile("\\w+?\\.\\w{3}");
Matcher m = p.matcher(str);
if(m.find())
{
System.out.println("Æ¥ÅäÄÚÈÝ£º"+m.group());
}
}

}

²âÊÔ½á¹û£ºÆ¥ÅäÄÚÈÝ£º001.gif

¸ÄÒ»ÏÂÉÏÃæµÄÕýÔò£¬Ð´µÄ²»ÈÏÕæ£¬¼ûÁÂ
Java code:
Pattern p = Pattern.compile("\\w+?\\.\\w+$");


Java code:

public static void main(String[]args){

String str


Ïà¹ØÎÊ´ð£º

Unable to compile class for JSP - Java / Web ¿ª·¢

<%@page language="java" contentType="text/html;charset=gb2312" import="java.sql.*"%>
<jsp:useBean id="db" class="wang.connectDB"/>
< ......

java ¸ß¼¶Ê¼þµÄʹÓÃ

ÏÂÁУ¨B£©ÊǸ߼¶Ê¼þ
A.componentevent            B.itemevent
C.windowevent                D.mouseevent

ÕâÌâÇëÎʸ߼¶Ê ......

javaÎÊÌâ

¡¡20¡¢¸ù¾ÝÀí½â£¬Ìî³äÏÂÃæ´úÂëÖеÚ3ÐеÄÄÚ²¿ÀàÃèÊö£¬ÏÂÁÐÑ¡ÏîÕýÈ·µÄÓÐ(¡¡)¡£
¡¡¡¡public class OuterClass {
¡¡¡¡private double d1 = 1.0;
¡¡¡¡//ÔÚ´Ë´¦²åÈë´úÂë
¡¡¡¡}
¡¡¡¡A. class InnerOne{
¡ ......

javaÏß³ÌÎÊÌâ

javaÎÊÌâ
ÐüÉÍ·Ö£º0 - ÀëÎÊÌâ½áÊø»¹ÓÐ 14 Ìì 22 Сʱ
public class ThreadPrint{

static Thread makeThread(final String id,boolean doemon)
{

Thread t=new Thread(id){

public ......

java»ù´¡ÎÊÌâ

Âé·³´ó¼Ò±êÃ÷ÏÂÏÂÃæµÄ½Ó¿ÚÊÇ£ºÓÐÐòΨһ²»Öظ´µÄ»¹ÊÇÎÞÐòΨһ¿ÉÖØ¸´µÄÄØ
  È磺Set£º´æ´¢¶ÔÏóÔªËØ£¬²»ÐèÒª±£³ÖÌØ¶¨Ë³Ðò£¬²»Öظ´
  List£º
  Map£º
  Vector£º
  HashSet£ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ