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ÒÔÇ°ÎÒÒ»Ö±ÒÔΪFile#renameTo(File)·½·¨ÓëOSÏÂÃæµÄ move/mv ÃüÁîÊÇÏàͬµÄ£¬¿ÉÒÔ´ïµ½¸ÄÃû¡¢Òƶ¯ÎļþµÄÄ¿µÄ¡£²»¹ýºóÀ´¾­³£·¢ÏÖÎÊÌ⣺File#renameTo(File)·½·¨»á·µ»Øʧ°Ü(false)£¬ÎļþûÓÐÒƶ¯£¬Óֲ鲻³öÔ­Òò£¬ÔÙºóÀ´¸É´àÆúÓø÷½·¨£¬×Ô¼ºÊµÏÖÒ»¸öcopy·½·¨£¬ÎÊÌâµ¹ÊÇÔÙҲûÓгöÏÖ¹ý¡£
×òÌìÀÏ°åͬѧÓÖÓöµ½Õâ¸öÎÊÌ⣬File#renameTo(File)·½·¨ÔÚwindowsÏÂÃ湤×÷µÄºÃºÃµÄ£¬ÔÚlinuxÏÂż¶ûÓÖʧÁéÁË¡£»Øµ½¼ÒÎÒɨÁËÒ»±éJDKÖÐFile#renameTo(File)·½·¨µÄÔ´´úÂ룬·¢ÏÖËüµ÷ÓõÄÊÇÒ»¸ö±¾µØµÄ·½·¨(native method)£¬ÎÞ·¨ÔÙ¸ú×ÙÏÂÈ¥¡£ÍøÉÏÓÐÈË˵¸Ã·½·¨ÔÚwindowÏÂÊÇÕý³£µÄ£¬ÔÚlinuxÏÂÃæÊDz»Õý³£µÄ¡£Õâ¸öºÜÄÑ˵ͨ£¬SUN²»¿ÉÄܸã³öÕâÖÖƽ̨²»Ò»ÖµĴúÂë³öÀ´°¡¡£
ºóÃæÔÚSUNµÄ¹Ù·½ÂÛ̳ÉÏ¿´µ½ÓÐÈËÌáµ½Õâ¸öÎÊÌâ“works on windows, don't work on linux”£¬ºóÃæÓÐÈ˻ظ´ËµÊÇ“file systems”²»Ò»Ñù¡£¾¿¾¹Ôõô²»Ò»ÑùÄØ£¿»¹ÊÇûÓÐÏë³öÀ´...
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In the Unix'esque O/S's you cannot renameTo() across file systems. This behavior is different than the Unix "mv" command. When crossing file systems mv does a copy and delete which is what you'll have to do if this is the case.
The same thing would happen on Windows if you tried to renameTo a different drive, i.e. C: -> D:
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File sourceFile = new File("c:/test.txt");   
File targetFile1 = new File("e:/test.txt");   
File targetFile2 = new File("d:/test.txt");   
System.out.println("source file is exist? " + sourceFile.exists()   
    + ", source file => " + sourceFile);   
System.out.println(targetFile1 + " is exist? " + targetFile1.exists());   
System.out.println("rename to " + targetFile1 + " => "  
    + sourceFile.renameTo(targetFile1));   
System.out.pr


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package com;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
public class RegexUtil {
private static Pattern PATTERN_EMAIL = Pattern
.compile("^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$");// ÓʼþµØÖ·
private static Pattern PATTERN_TEL = Pattern
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public class Test {
public static void main(String[] args) {
for (int i = 0; i < args.length; i++) {
System.out.println(args[i].length() + ":" + args[i]);
}
}
}

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