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

ÔÚUnix/LinuxÉÏÁî(java)JVMÖ§³ÖÖÐÎÄÊä³ö

Ò»¡¢ÔÚUnix/LinuxÉÏÁîJVMÖ§³ÖÖÐÎÄÊä³ö
Èç¹ûÓû§Ê¹ÓõÄÊÇUNIXµÄÔ¶³Ì·þÎñÆ÷£¬¾Í»áÓöµ½ÖÐÎÄ×ÖÌåÔÚͼÏñÖÐÊä³öµÄÎÊÌâ£¬ÌØ±ðÊÇÓÉÓÚÐí¶à¹ÜÀíÔ±²¢²»Ï²»¶°ÑÖ÷»úµÄlocale¶¨Îªzh(ÒòΪÒâζ×Å¿ÉÄܳöÂÒÂë»ò±ØÐëװ΢ÐÎͼÐÎÖÕ¶ËÏózhcon£¬µ«ºÜ¶àÇé¿öÏÂÕâÑùµÄÌõ¼þ²¢²»¾ß±¸)¡£´ó²¿·Ö³ÌÐòÔ±µÄJAVA¾­Ñé¹¶ÏÞÓÚJSP½Å±¾³ÌÐò£¬²¿·ÖÊìÁ·µÄ³ÌÐòÔ±´ó¸Å¿ ......

CentosÖÐÅäÖÃJava»·¾³

     Èç¹û°²×°JDKʱÌáʾÒѾ­°²×°ÁËJDK£¨»òÕß°²×°µÄ°æ±¾²»ÊÇÄãÏëÒªµÄ£©£¬É¾³ýµÄ·½·¨ÈçÏ£º
    # yum -y remove java-1.4.2-gcj-compat
1.°²×°JDK
Ê×ÏÈÐèÒª´ÓÍøÉÏÏÂÔØJDK°²×°Îļþ£¬Èç¹ûÎļþµÄÀàÐÍÊÇrpm.bin£¬¿ÉÒÔʹÓÃÏÂÃæµÄÃüÁî°²×°£º
# sh jdk-6u2-linux-i586-rpm.bin
Èç¹ûÎÄ ......

java»ñȡϵͳ±àÂë

ÓÉÓÚJDKÊǹú¼Ê°æµÄ£¬ÔÚ±àÒëµÄʱºò£¬Èç¹ûÎÒÃÇûÓÐÓÃ-encoding²ÎÊýÖ¸¶¨ÎÒÃǵÄJAVAÔ´³ÌÐòµÄ±àÂë¸ñʽ£¬Ôòjavac.exeÊ×ÏÈ»ñµÃÎÒÃDzÙ×÷ϵͳĬÈϲÉÓõıàÂë¸ñʽ£¬Ò²¼´ÔÚ±àÒëjava³ÌÐòʱ£¬ÈôÎÒÃDz»Ö¸¶¨Ô´³ÌÐòÎļþµÄ±àÂë¸ñʽ£¬JDKÊ×ÏÈ»ñµÃ²Ù×÷ϵͳµÄfile.encoding²ÎÊý(Ëü±£´æµÄ¾ÍÊDzÙ×÷ϵͳĬÈϵıàÂë¸ñʽ£¬ÈçWIN2k£¬ËüµÄֵΪGBK)£¬È»º ......

java±àÂë2

String str = "ÖÐ";
 
 
  String str1 = new String(str.getBytes("gbk"), "ISO8859-1");
  String str2 = new String(str1.getBytes("ISO8859-1"), "gbk");
  System.out.println(str2);  //Êä³ö"ÖÐ" ......

java ͸Ã÷ͼƬ

¹ØÓÚJavaÉú³É±³¾°Í¸Ã÷µÄpngͼƬ
×î½üÓõ½Java¶¯Ì¬Éú³É±³¾°Í¸Ã÷µÄͼƬ¹¦ÄÜ£¬´ÓgifºÍpngÖÐÑ¡ÔñÁËpng¸ñʽ£¬¸öÖÐÔµÓɾͲ»ËµÁË£¬ÓÚÊǶ¯ÊÖµ½ÍøÉÏËÑË÷ÓÐÓõĴúÂë¡£ÏÖ°ÑËÑË÷½á¹û×ܽáÈçÏ£º
1. Éú³ÉpngͼƬ
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage&nb ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ