Java List to Primitive Array toPrimitives(List oInt)

Description

to Primitives

License

Open Source License

Declaration

public static int[] toPrimitives(List<Integer> oInt) 

Method Source Code

//package com.java2s;
/*//  w w w  .j  a  v a2  s.c o  m
 * SBPrime plugin utils
 * Copyright (c) 2015, SBPrime <https://github.com/SBPrime/>
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted free of charge provided that the following 
 * conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution,
 * 3. Redistributions of source code, with or without modification, in any form 
 *    other then free of charge is not allowed,
 * 4. Redistributions in binary form in any form other then free of charge is 
 *    not allowed.
 * 5. Usage in closed source projects is not allowed
 * 6. Any derived work based on or containing parts of this software must reproduce 
 *    the above copyright notice, this list of conditions and the following 
 *    disclaimer in the documentation and/or other materials provided with the 
 *    derived work.
 * 7. The original author of the software is allowed to change the license 
 *    terms or the entire license of the software as he sees fit.
 * 8. The original author of the software is allowed to sublicense the software 
 *    or its parts using any license terms he sees fit.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.util.List;

public class Main {
    public static byte[] toPrimitives(Byte[] oBytes) {
        if (oBytes == null) {
            return null;
        }
        byte[] bytes = new byte[oBytes.length];

        for (int i = 0; i < oBytes.length; i++) {
            bytes[i] = oBytes[i];
        }

        return bytes;
    }

    public static int[] toPrimitives(List<Integer> oInt) {
        if (oInt == null) {
            return null;
        }

        return toPrimitives(oInt.toArray(new Integer[0]));
    }

    public static int[] toPrimitives(Integer[] oInt) {
        if (oInt == null) {
            return null;
        }
        int[] ints = new int[oInt.length];

        for (int i = 0; i < oInt.length; i++) {
            ints[i] = oInt[i];
        }

        return ints;
    }
}

Related

1. toPrimitiveIntArray(List values)
2. toPrimitiveIntegerArray(List listOfInt)
3. toPrimitiveLongArray(List items)
4. toPrimitiveLongArray(List l)
5. ToPrimitiveLongArray(List list)