Java tutorial
//package com.java2s; import java.util.HashSet; import java.util.Set; public class Main { /** * */ public static <T> Set<T> toSet(T... values) { // Precondition checking if (values == null) { return new HashSet<T>(0); } // Set<T> r = new HashSet<T>(values.length); for (T t : values) { r.add(t); } return r; } }