将数组转换为集合

//package com.nowjava;

/**
 * 时代Java 提 供 
**/

import java.util.Collections;

import java.util.LinkedHashSet;


import java.util.Set;


public class Main {


    @SafeVarargs

    public static <E> Set<E> asSet(E... elements) {

        if (elements == null || elements.length == 0) {

            return Collections.emptySet();

        }
        /*
        n o w j a   v  a . c o m - 时  代  Java 提 供
        */

        LinkedHashSet<E> set = new LinkedHashSet<E>(