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1. byte Èç¹ûûÓи³Öµ£¬ÄÇôjava»á×Ô¶¯½«Ëü¸³ÖµÎª £¨byte£©0;
static String ReadLn (int maxLg) // utility function to read from stdin
{
byte lin[] = new byte [maxLg];
int lg = 0, car = -1;
String line = "";
try
{
while (lg < maxLg)
{
car = System.in.read();
if ((car < 0) || (car == '\n')) break;
lin [lg++] += car;
}
}
catch (IOException e)
{
return (null);
}
if ((car < 0) && (lg == 0)) return (null); // eof
return (new String (lin, 0, lg));
}
public static void main (String args[]) // entry point from OS
{
Main myWork = new Main(); // create a dinamic instance
myWork.Begin(); // the true entry point
}


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      ÕâÖÖ·½·¨Ïà¶Ô±È½Ï¼òµ¥£¬ÒòΪcommons-httpclientÒѾ­×öÁ˺ܺõķâ×°£¬¼òµ¥µÄ´úÂëÈçÏ£º
// ¹¹ÔìHttpClientµÄʵÀý
HttpClient httpClient = new HttpClient();
HttpClientParams clientPar ......

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//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 ......

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. ......
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