定义一个工具类,该类要求用户运行该程序时输入一个路径。该工具

public void testPart3(String path) { File file = new File(path); File []fileList = file.listFiles(); System.out.println("path:"+path+" size:"+fileList.length); for (int i = 0 ; i < fileList.length;i++) { System.out.println(fileList[i].getPath()); if(fileList[i].isDirectory()) { testPart3(fileList[i].getPath()); } } }