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

Java³ÌÐòÐÞ¸ÄÎļþÃû

package script;
import java.io.File;
import java.io.IOException;
public class Realname {
 public static void main(String[] args) throws IOException
 {
 
  File oldFile = new File("d:/PMS");
  if(!oldFile.exists())
  {
   oldFile.createNewFile();
  }
  System.out.println("ÐÞ¸ÄǰÎļþÃû³ÆÊÇ£º"+oldFile.getName());
  String rootPath = oldFile.getParent();
  System.out.println("¸ù·¾¶ÊÇ£º"+rootPath);
  File newFile = new File(rootPath + File.separator + "PMSTmp");
  System.out.println("Ð޸ĺóÎļþÃû³ÆÊÇ£º"+newFile.getName());
  if (oldFile.renameTo(newFile))
  {
   System.out.println("Ð޸ijɹ¦!");
  }
  else
  {
   System.out.println("ÐÞ¸Äʧ°Ü");
  }
 }
}


Ïà¹ØÎĵµ£º

ÊìÁ·µÄJava³ÌÐòÔ±Ó¦¸ÃÕÆÎյļ¼Êõ

1¡¢Óï·¨£ºJava³ÌÐòÔ±±ØÐë±È½ÏÊìϤÓï·¨£¬ÔÚд´úÂëµÄʱºòIDEµÄ±à¼­Æ÷¶ÔijһÐб¨´íÓ¦¸ÃÄܹ»¸ù¾Ý±¨´íÐÅÏ¢ ÖªµÀÊÇʲôÑùµÄÓï·¨´íÎó²¢ÇÒÖªµÀÈκÎÐÞÕý¡£
2¡¢ÃüÁ±ØÐëÊìϤJDK´øµÄһЩ³£ÓÃÃüÁî¼°Æä³£ÓÃÑ¡ÏÃüÁîÖÁÉÙÐèÒªÊìϤ£ºappletviewer¡¢ HtmlConverter¡¢jar¡¢ java¡¢ javac¡¢javadoc¡¢javap¡¢javaw¡¢native2ascii¡¢serialv ......

java flyweightģʽ

Flyweight ¶¨Òå:
±ÜÃâ´óÁ¿ÓµÓÐÏàͬÄÚÈݵÄСÀàµÄ¿ªÏú(ÈçºÄ·ÑÄÚ´æ),ʹ´ó¼Ò¹²ÏíÒ»¸öÀà(ÔªÀà).
ÃæÏò¶ÔÏóÓïÑÔµÄÔ­Ôò¾ÍÊÇÒ»Çж¼ÊǶÔÏó,µ«ÊÇÈç¹ûÕæÕýʹÓÃÆðÀ´,ÓÐʱ¶ÔÏóÊý¿ÉÄÜÏԵúÜÅÓ
´ó,±ÈÈç,×Ö´¦ÀíÈí¼þ,Èç¹ûÒÔÿ¸öÎÄ×Ö¶¼×÷Ϊһ¸ö¶ÔÏó,¼¸Ç§¸ö×Ö,¶ÔÏóÊý¾ÍÊǼ¸Ç§,ÎÞÒɺÄ
·ÑÄÚ´æ,ÄÇôÎÒÃÇ»¹ÊÇÒª"Çóͬ´æÒì",ÕÒ³öÕâЩ¶ÔÏóȺµÄ¹²Í¬ ......

javaÎļþÏÂÔØµÄ¼¸ÖÖ·½Ê½

//JavaÎļþÏÂÔØµÄ¼¸ÖÖ·½Ê½  
 
    public HttpServletResponse download(String path, HttpServletResponse response) {  
        try {  
            // pathÊ ......

java ×Ö·û±àÂë

String newStr = new String(oldStr.getBytes(), "UTF-8");

javaÖеÄStringÀàÊǰ´ÕÕunicode½øÐбàÂëµÄ£¬µ±Ê¹ÓÃString(byte[] bytes, String encoding)¹¹Ôì×Ö·û´®Ê±£¬encodingËùÖ¸µÄÊÇbytesÖеÄÊý¾ÝÊǰ´ÕÕÄÇÖÖ·½Ê½±àÂëµÄ£¬¶ø²»ÊÇ×îºó²úÉúµÄStringÊÇʲô±àÂ뷽ʽ£¬»»¾ä»°Ëµ£¬ÊÇÈÃϵͳ°ÑbytesÖеÄÊý¾ÝÓÉencoding±à ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ