Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (C) 2010 Peter Karich <jetwick_@_pannous_._info>
 *
 * 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 byteArray2long(byte[] signature) {
        if (signature.length > 8)
            throw new UnsupportedOperationException(
                    "Cannot lossless convert byte array into long if length is greater than 8");

        long val = 0;
        for (int i = signature.length - 1; i >= 0; i--) {
            val = val << 8;
            val |= signature[i];
        }

        return val;
    }
}