Here you can find the source of LongArrayFrom(long[] array)
public static Long[] LongArrayFrom(long[] array)
//package com.java2s; /*//from www.j ava 2 s. c om * Copyright 2008 Oracle Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ public class Main { public static Long[] LongArrayFrom(long[] array) { if (array == null) { return new Long[0]; } Long[] result = new Long[array.length]; for (int i = 0; i < array.length; i++) { result[i] = array[i]; } return result; } public static long[] longArrayFrom(Long[] array) { if (array == null) { return new long[0]; } long[] result = new long[array.length]; for (int i = 0; i < array.length; i++) { result[i] = array[i]; } return result; } }