lx14.java

JAVA学习源代码,大家可以好好参考,请多提宝贵意见

import java.io.*;
import java.lang.*;
 class OnlyExt implements FilenameFilter
{
	String ext;
	public OnlyExt(String ext)
	{
		this.ext="."+ext;
	}
	public boolean accept(File dir,String name)
	{
		//String name;
		return name.endsWith(ext);
	}
}
public class Lx14
{
	public static void main(String args[])
	{
		String dirname="/java/source_code/my_sourcecode";
		File f=new File(dirname);
		FilenameFilter only=new OnlyExt("txt");
		File s[]=f.listFiles(only);
		for(int i=0;i<s.length;i++)
		{
			System.out.println(s[i]);
		}
		System.out.println(f.getName());
		
	}
}