Java tutorial
//package com.java2s; //License from project: Apache License import java.util.ArrayList; import java.util.List; public class Main { public static Class<?>[] toClasses(Object... args) { List<Class<?>> list = new ArrayList<Class<?>>(args.length); for (Object obj : args) list.add(obj.getClass()); return list.toArray(new Class[list.size()]); } }