Java BigInteger Calculate unsignedLongToBigInteger(byte[] source)

Description

unsigned Long To Big Integer

License

Open Source License

Declaration

public static BigInteger unsignedLongToBigInteger(byte[] source) 

Method Source Code

//package com.java2s;
/*//from w  w  w .j a  va2 s .  c om
 * gMix open source project - https://svs.informatik.uni-hamburg.de/gmix/
 * Copyright (C) 2012  Karl-Peter Fuchs
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.math.BigInteger;

public class Main {
    public static BigInteger unsignedLongToBigInteger(byte[] source) {

        byte[] result = new byte[source.length + 1];
        result[0] = 0;

        for (int i = 1; i < result.length; i++)
            result[i] = source[i - 1];

        return new BigInteger(result);

    }
}

Related

1. trim(BigInteger bi)
2. trim(BigInteger n)
3. trimToPrecision(BigInteger number, int precision)
4. uint64ToByteStreamLE(BigInteger val, OutputStream stream)
5. unsignedBigIntergerToByteArray(BigInteger bigInteger)
6. unsignedToBigInteger(long l)
7. writeBigInteger(BigInteger integer, DataOutputStream out)
8. writeBigInteger(BigInteger m, int n, OutputStream os)
9. writeBigInteger(ByteArrayOutputStream baos, BigInteger bi)