Java Long Number Create toLong(byte[] b)

Description

to Long

License

Apache License

Declaration

public static long toLong(byte[] b) 

Method Source Code

//package com.java2s;
/*//from  w  ww .j  av  a2  s.  c om
 * Copyright 2016 Dmitriy Malakhov.
 *
 * 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 toLong(byte[] b) {
        long MASK = 0xFF;
        long result = 0;
        result = b[7] & MASK;
        result = result + ((b[6] & MASK) << 8);
        result = result + ((b[5] & MASK) << 16);
        result = result + ((b[4] & MASK) << 24);
        result = result + ((b[3] & MASK) << 32);
        result = result + ((b[2] & MASK) << 40);
        result = result + ((b[1] & MASK) << 48);
        result = result + ((b[0] & MASK) << 56);
        return result;
    }
}

Related

1. toLong(byte... b)
2. toLong(byte... b)
3. toLong(byte[] arr)
4. toLong(byte[] array, int offset)
5. toLong(byte[] b)
6. toLong(byte[] b)
7. toLong(byte[] b)
8. toLong(byte[] b)
9. toLong(byte[] b)