listfile.java

可以让初学者有一个感性的认识

import java.io.*;

class FileName implements FilenameFilter
{	
	String str=null;
	
	FileName(String s){str="."+s;}

	public boolean accept(File dir,String name)
	{return name.endsWith(str);}
}


public class ListFile
{
	String extendsName=null;
	
	public void setExtendsName(String s)
	{extendsName=s;}

	public String getExtendsName()
	{return extendsName;}

	public String[] listFile()
	{
		File dir=new File("d:/Tomcat/webapps/root/");
		FileName file_jsp=new FileName(extendsName);
		String file_name[]=dir.list(file_jsp);
		return file_name;
	}
}