Java Long to Byte Array long2Bytes(long num)

Description

long Bytes

License

Apache License

Declaration

public static byte[] long2Bytes(long num) 

Method Source Code

//package com.java2s;
/**/*from w ww .j ava2  s . co  m*/
 * Copyright (c) 2011-2020, hubin (jobob@qq.com).
 *
 * 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.
 */

public class Main {
    public static byte[] long2Bytes(long num) {
        byte[] byteNum = new byte[8];
        for (int ix = 0; ix < 8; ++ix) {
            int offset = 64 - (ix + 1) * 8;
            byteNum[ix] = (byte) ((num >> offset) & 0xff);
        }
        return byteNum;
    }

    public static void long2bytes(long value, byte[] bytes, int offset) {
        int offsetLocal = offset;
        for (int i = 7; i > -1; i--) {
            bytes[offsetLocal++] = (byte) ((value >> 8 * i) & 0xFF);
        }
    }
}

Related

1. long2bytes(long i, int byteCount)
2. long2bytes(long l, byte[] data, int offset)
3. long2Bytes(long l, byte[] target, int offset)
4. long2bytes(long longValue)
5. long2bytes(long num)
6. long2Bytes(long num)
7. long2bytes(long v)
8. long2bytes(long v, int len)
9. long2bytes(long value)