Convert Collection of Integer to Int Array - Android java.util

Android examples for java.util:Collection Convert

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Description

Convert Collection of Integer to Int Array

Demo Code

/**//from   www.  j a v a 2s  .  c  om
    Copyright (C) 2010-2012 University of Helsinki.    

    This file is part of Etymon.
    Etymon 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 3 of the License, or
    (at your option) any later version.

    Etymon 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 Etymon.  If not, see <http://www.gnu.org/licenses/>.
 **/
//package com.book2s;
import java.util.Collection;

public class Main {
    public static void main(String[] argv) {
        Collection integerCollection = java.util.Arrays.asList("asdf",
                "book2s.com");
        System.out.println(java.util.Arrays
                .toString(toIntArray(integerCollection)));
    }

    public static int[] toIntArray(Collection<Integer> integerCollection) {
        int[] intArray = new int[integerCollection.size()];
        int index = 0;

        for (int num : integerCollection) {
            intArray[index] = num;
            index++;
        }

        return intArray;
    }
}

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