Java--文件遍历并按层级输出

package com.file;import java.io.File;public class FileScanner {public static void main(String[] args) {// TODO Auto-generated method stublistFile(new File("../javabasic"), 1);}public static void listFile(File dir, int tab) {//check if file is a directoryif (dir.isDirectory()) {File[] files = dir.listFiles();for (int i=0; i<files.length; i++) {for (int j=0; j<tab; j++) {System.out.print("--");}System.out.println(files[i].getName());if (files[i].isDirectory()) {listFile(files[i], tab+1);}}}}}