Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*  Copyright (C) 2016-2017 Andreas Shimokawa, Carsten Pfeiffer
    
 This file is part of Gadgetbridge.
    
 Gadgetbridge is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as published
 by the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
    
 Gadgetbridge 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 Affero General Public License for more details.
    
 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>. */

import java.util.Collection;

public class Main {
    /**
     * Converts a collection of Integer values to an int[] array.
     * @param values
     * @return null if the given collection is null, otherwise an array of the same size as the collection
     * @throws NullPointerException when an element of the collection is null
     */
    public static int[] toIntArray(Collection<Integer> values) {
        if (values == null) {
            return null;
        }
        int i = 0;
        int[] result = new int[values.size()];
        for (Integer value : values) {
            result[i++] = value;
        }
        return result;
    }
}