Java Byte Array to Long bytes2Long(byte[] bytes)

Description

bytes to long

License

Apache License

Parameter

Parameter	Description
bytes	The bytes to interpret.

Declaration

public static long bytes2Long(byte[] bytes) 

Method Source Code

//package com.java2s;
/**// w ww .  j a v a 2  s  .  c  om
 * Copyright 2010-2016 the original author or authors.
 * 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 {
    /**
     * bytes to long
     * @param bytes The bytes to interpret.
     * @return
     */
    public static long bytes2Long(byte[] bytes) {
        if (bytes == null) {
            return 0;
        }
        if (bytes.length != 8) {
            throw new IllegalArgumentException("Expecting 8 byte values to construct a long");
        }
        long value = 0;
        for (int i = 0; i < 8; i++) {
            value = (value << 8) | (bytes[i] & 0xff);
        }
        return value;
    }
}

Related

1. byte2long(final byte[] v)
2. bytes2long(byte[] b)
3. bytes2long(byte[] byteArray, int offset)
4. bytes2Long(byte[] bytes)
5. bytes2long(byte[] bytes)
6. bytes2Long(byte[] bytes)
7. bytes2long(byte[] bytes)
8. bytes2long(byte[] bytes)
9. bytes2long(byte[] bytes, boolean bigEndian)