Java tutorial
//package com.java2s; // The MIT License (MIT) import java.io.File; import java.util.ArrayList; import java.util.List; public class Main { /** * Recursive method used to find all classes in a given directory and subdirs. * * @param directory The base directory * @param packageName The package name for classes found inside the base directory * @return The classes * @throws ClassNotFoundException */ private static List findClasses(File directory, String packageName) throws ClassNotFoundException { List classes = new ArrayList(); if (!directory.exists()) { return classes; } File[] files = directory.listFiles(); for (File file : files) { if (file.isDirectory()) { assert !file.getName().contains("."); classes.addAll(findClasses(file, packageName + "." + file.getName())); } else if (file.getName().endsWith(".class") && !file.getName().contains("$") && !file.getName().endsWith("Test.class")) { classes.add(file.getName().substring(0, file.getName().length() - 6)); } } return classes; } }