Java Long Number Create toLong(final byte[] array, final int offset, final int length)

Description

to Long

License

Apache License

Declaration

public static long toLong(final byte[] array, final int offset, final int length) 

Method Source Code

//package com.java2s;
/*//from  w  w w  .j  a v  a2  s  .com
 * DISCLAIMER
 *
 * Copyright 2016 ArangoDB GmbH, Cologne, Germany
 *
 * 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.
 *
 * Copyright holder is ArangoDB GmbH, Cologne, Germany
 */

public class Main {
    public static long toLong(final byte[] array, final int offset, final int length) {
        long result = 0;
        for (int i = (offset + length - 1); i >= offset; i--) {
            result <<= 8;
            result |= (array[i] & 0xFF);
        }
        return result;
    }
}

Related

1. toLong(byte[] value)
2. toLong(byte[] vint)
3. toLong(double val)
4. toLong(double[] in, long[] out)
5. toLong(double[] v)
6. toLong(final byte[] b)
7. toLong(final byte[] b, final int offset)
8. toLong(final byte[] bytes, final int offset)
9. toLong(final byte[] data)