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");
}
}
}
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Java·´Éä»úÖÆÖ÷ÒªÌṩÁËÒÔϹ¦ÄÜ£º ÔÚÔËÐÐʱÅжÏÈÎÒâÒ»¸ö¶ÔÏóËùÊô ......
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 ......
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 ......
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¡¡¡¡±¾ÎIJÉÓÃJavaÓïÑÔÐ ......
package tao.hai.bing;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
public class LoadJar {
public static void main(String[] args)
{
Syst ......