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

java»ñÈ¡³ÌÐòµ±Ç°Ä¿Â¼¡£

import java.net.URL;
import java.net.URLDecoder;
public class PathUtil
{
 /**
  * Get the env of windir, such as "C:\WINDOWS".
  * @return the env of windir value.
  */
 public static String getWindir(){
  return System.getenv("windir");
 }
 
 /**
  * Get file separator, such as "/" on unix.
  *
  * @return the separator of file.
  */
 public static String getFileSeparator()
 {
  return System.getProperty("file.separator");
 }
 /**
  * Get line separator, such as "\n" on unix.
  *
  * @return the separator of line.
  */
 public static String getLineSeparator()
 {
  return System.getProperty("line.separator");
 }
 /**
  * Get programPath
  *
  * @return programPath
  */
 public static String getProgramPath()
 {
  Class<PathUtil> cls = PathUtil.class;
  ClassLoader loader = cls.getClassLoader();
  //
  // Get the full name of the class.
  //
  String clsName = cls.getName() + ".class";
  //
  // Get the package that include the class.
  //
  Package pack = cls.getPackage();
  String path = "";
  //
  // Transform package name to path.
  //
  if(pack != null)
  {
   String packName = pack.getName();
   //
   // Get the class's file name.
   //
   clsName = clsName.substring(packName.length() + 1);
   //
   // If package is simple transform package name to path directly,
   // else transform package name to path by package name's
   // constituent.
   //
   path = packName;
   if(path.ind


Ïà¹ØÎĵµ£º

¹ØÓÚ½«java³ÌÐò×ö³ÉexeÎļþµÄ¼¸ÖÖ×ö·¨£¨ZT£©

 ¿ÉÒÔ°ÑÆÕͨµÄJava³ÌÐò×ö³ÉÕæÕýµÄexe,Ò²¾ÍÊǵ¥Ò»¸öexe¾Í¿ÉÒÔÔÚûÓа²×°JVMµÄ»úÆ÷ÉÏÔËÐС£ÕâÑùµÄ¹¤¾ß³£¼ûµÄÓÐJETºÍgcj.ǰÕßÊÇÊշѵ쬶øÇÒ×ö³öÀ´µÄexe»¹ÊÇÐèÒªÒ»¶Ñdll¡£ÍƼöʹÓÃgcj.ËûÓÐwindowsºÍLinux°æ£¬Ö±½ÓÏÂÔØzip°ü£¬²»ÐèÒª°²×°£¬ÀïÃæÓв»ÉÙÀý×Ó£¬Ò»Ð©buildµÄÅú´¦ÀíÎļþ¡£´ÓÔ­ÀíÀ´Ëµgcj×Ô¼ºÊµÏÖÁËJVM¹æ·¶£¬Ò²¾ÍÊÇÄ ......

javaÖеÄforeachÓ÷¨

 import java.util.*;
public class ForeachExample {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Random r = new Random();
int[] x = new int[10];
for (int i = 0; i < x.length; i++) {
x[i] = r.nextInt(100);
}
/ ......

JAVA JNI ʹÓÃʵÀý

 JAVA¿ÉÒÔͨ¹ýJNI½Ó¿Ú·ÃÎʱ¾µØµÄ¶¯Ì¬Á¬½Ó¿â£¬´Ó¶øÀ©Õ¹JAVAµÄ¹¦ÄÜ¡£Ê¹ÓÃJAVA JNI½Ó¿ÚÖ÷Òª°üÀ¨ÒÔϲ½Ö裺
(1)±àдJAVA´úÂ룬עÃ÷Òª·ÃÎʵı¾µØ¶¯Ì¬Á¬½Ó¿âºÍ±¾µØ·½·¨£»
(2)±àÒëJAVA´úÂëµÃµ½.classÎļþ£»
(3)ʹÓÃjavah -jni Éú³É¸ÃÀà¶ÔÓ¦µÄCÓïÑÔ.hÎļþ£»
(4)ʹÓÃC/C++ʵÏÖ£¨3£©Éú³ÉµÄ.hÎļþÖÐÉùÃ÷µÄ¸÷º¯Êý£»
(5)±àÒëC/ ......

1¡¢ÔõÑùѧϰJava?

 1.Á˽âJavaµÄÔ­Àí£º
       Ê×ÏÈÒªÁ˽âÕû¸öJavaµÄ´óÖ½ṹ¡¢¹¤×÷»·¾³¡¢ÀúÊ·¡£ÔÚÕâ¸ö¹ý³ÌÖÐÒª¸ãÃ÷°×Java´ÓÔ´´úÂëµ½×îºóÐéÄâ»úÀïÃæÖ´ÐеÄÒ»¸ö¹ý³ÌÊÇÔõÑùµÄ¡£
2.ѧϰJavaÓï·¨£º
      JavaÀïÃæÖ»ÓÐ50¶à¸ö¹Ø¼ü×ÖºÍһЩÔËËã·û¡£Óï·¨½á¹¹¾ÍÖ»ÓÐ˳Ðò¡¢Ìõ¼þ¡¢Ñ­»· ......

Javaʼþ»úÖÆ

 Ê¼þÔ´¸ºÔð²úÉúʼþ
ʼþÀࣺ¶¨ÒåʼþµÄÌØÕ÷£»
¼àÌýÆ÷½Ó¿Ú£º¶¨Òå¼àÌýÆ÷Ó¦¸ÃʵÏֵŦÄÜ£»
¼àÌýÆ÷£ºÊµÏÖ¼àÌýÆ÷½Ó¿Ú£¬¼àÌýʼþµÄ·¢Éú²¢×÷³öÏìÓ¦£»
ËùÓеÄʼþÀà±ØÐë¼Ì³ÐJavaʼþ»ùÀ࣬¼´java.util.EventObject£»EventObject(Object source)ÊÇEventObjectΨһµÄ¹¹Ôì·½·¨£¬ÕâÒâζ×ÅËùÓÐʼþ±ØÐëÔÚʵÀý»¯Ê±¾ÍÖ¸¶¨Ê¼þÔ´ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ