Java tutorial
//package com.java2s; //License from project: Open Source License import java.io.File; import java.util.Arrays; import java.util.Collection; public class Main { public static int deleteFiles(Collection<File> files) { int n = 0; for (File file : files) { if (file.isDirectory()) { n += deleteFiles(Arrays.asList(file.listFiles())); } if (file.delete()) n++; } return n; } }