Java Byte Array to Long byte2long(byte[] b)

Description

bytelong

License

Apache License

Declaration

public static long byte2long(byte[] b) 

Method Source Code

//package com.java2s;
/**//w  w  w  .j  a v a  2s.  c  o  m
 * Copyright [2009-2010] [dennis zhuang(killme2008@gmail.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 long byte2long(byte[] b) {
        return bytes2long(b, 0);
    }

    public static long bytes2long(byte[] b, int off) {
        return ((b[off + 7] & 0xFFL) << 0) + ((b[off + 6] & 0xFFL) << 8) + ((b[off + 5] & 0xFFl) << 16)
                + ((b[off + 4] & 0xFFl) << 24) + ((b[off + 3] & 0xFFl) << 32) + ((b[off + 2] & 0xFFl) << 40)
                + ((b[off + 1] & 0xFFl) << 48) + (b[off + 5] << 56);
    }
}

Related

1. arr2long(byte[] b)
2. atol(byte[] s)
3. atol(byte[] s, int offset)
4. bufferToLong(byte[] ioBuffer)
5. byte2long(byte[] b)
6. byte2Long(byte[] bytes, int offset)
7. byte2Long(byte[] bytes, int offset)
8. byte2long(byte[] data)
9. byte2long(byte[] value, int count)