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javaÎļþ·ÃÎÊFileÀ༰Æä¹ýÂË

import java.io.*;
class FileTest
{
 public static void main(String[] args) throws Exception
 {
  //File f=new File("1.txt");
  //f.createNewFile();
  //f.mkdir();
  //File f=new File("E:\\JavaLesson\\Lesson7\\1.txt");//ÔÚWindowsϵͳÏÂ,Óþø¶Ô·¾¶Ï´´½¨Îļþ,ÓÃ\\,\+×ÖĸÊÇÓÃÓÚ
תÒå×Ö·û
  //f.createNewFile();
   //Ïß³Ì˯ÃßÈýÃëÖÓ
  
  File fDir=new File(File.separator);
  String strFile="JavaLesson"+File.separator+"Lesson6";
  File f=new File(fDir,strFile);
  String[] names=f.list(new FilenameFilter()//µÃµ½ÒÔÉÏÎļþ¼ÐÏÂËùÓеÄÎļþÃûºÍĿ¼Ãû,´æ´¢ÔÚnamesÊý×éÖÐ
  //½Ó¿Ú»¹¿ÉÒÔÕâÑùʵÏÖ
  {
   public boolean accept(File dir,String name)
   {
    return name.indexOf(".java")!=-1;
   }
  });
  for(int i=0;i<names.length;i++)
  {
   System.out.println(names[i]);
  }
 }
}


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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.io.Serializable;
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Java Reflection

 
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import java.io.*;
import java.util.Vector;
import jxl.*;
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