Here you can find the source of asList(T[] array)
public static <T> List<T> asList(T[] array)
//package com.java2s; /*//from w w w . j a va2s . c om * Copyright (c) 2016. Sten Martinez * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ import java.util.ArrayList; import java.util.Collections; import java.util.List; public class Main { public static <T> List<T> asList(T[] array) { ArrayList<T> list = new ArrayList<T>(); Collections.addAll(list, array); return list; } }