Java 到指定目录查找文件

import java.io.File; public class DirSize { public static void main(String[] args) { File dir = new File("/home/huanyu/Desktop"); String[] files = dir.list(); if (files == null){ System.out.println("目录为空！！！"); }else { for (int i=0; i<files.length; i++){ System.out.println(files[i]); } } } }