Here you can find the source of intToIntegerArray(int[] array)
public static Integer[] intToIntegerArray(int[] array)
//package com.java2s; /* Copyright (c) 2015 University of Massachusetts * /*from w w w.jav a 2 s. c o m*/ * 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 Integer[] intToIntegerArray(int[] array) { if (array == null) { return null; } else if (array.length == 0) { return new Integer[0]; } Integer[] retarray = new Integer[array.length]; int i = 0; for (int member : array) { retarray[i++] = member; } return retarray; } }