Java Convert via ByteBuffer intArrayToBytes(Collection values)

Description

Pack an array of ints as big endian.

License

Apache License

Declaration

public static byte[] intArrayToBytes(Collection<Integer> values) 

Method Source Code

//package com.java2s;
/*//from w  ww  .  j  a v a  2s  . co  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.
 */

import java.nio.ByteBuffer;
import java.util.Collection;

public class Main {
    /**
     * Pack an array of ints as big endian.
     */
    public static byte[] intArrayToBytes(Collection<Integer> values) {
        ByteBuffer buffer = ByteBuffer.allocate(values.size() * Integer.BYTES);
        for (int value : values) {
            buffer.putInt(value);
        }
        return buffer.array();
    }
}

Related

1. hexToAscii(byte[] src)
2. hexToBytes(String hexStr)
3. hexToBytes(String hexString)
4. intArrayFromBytes(byte[] bytes)
5. intArrayToByteArray(int[] intArray)
6. intArrayToIntBuffer(int[] data)
7. intsToBytes(int[] n)
8. IntToBArray(int src)
9. intToByte(int[] intArray)