Java Collection Convert toPrimitiveIntegerArray(Collection collection)

Description

to Primitive Integer Array

License

Open Source License

Declaration

public static int[] toPrimitiveIntegerArray(Collection<Integer> collection) 

Method Source Code

//package com.java2s;
/*// w  w w .j  a v a 2 s .c o m
 * Copyright (c) 2012, 2013 Mateusz Parzonka
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Mateusz Parzonka - initial API and implementation
 */

import java.util.Collection;

public class Main {
    public static int[] toPrimitiveIntegerArray(Collection<Integer> collection) {
        int[] result = new int[collection.size()];
        int i = 0;
        for (Integer n : collection) {
            result[i++] = n;
        }
        return result;
    }
}

Related

1. toMatrix(Collection collection)
2. toObjectArray(Collection