Java BigInteger Create toBigInteger(final byte[] array, final int offset, final int length)

Description

to Big Integer

License

Apache License

Declaration

public static BigInteger toBigInteger(final byte[] array, final int offset, final int length) 

Method Source Code

//package com.java2s;
/*//from  w ww .j  a  v a2s .co  m
 * 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
 */

import java.math.BigInteger;

public class Main {
    public static BigInteger toBigInteger(final byte[] array, final int offset, final int length) {
        BigInteger result = new BigInteger(1, new byte[] {});
        for (int i = (offset + length - 1); i >= offset; i--) {
            result = result.shiftLeft(8);
            result = result.or(BigInteger.valueOf(array[i] & 0xFF));
        }
        return result;
    }
}

Related

1. createBigInteger(String str)
2. createBigInteger(String str)
3. hexToBigInteger(String hex)
4. hexToBigInteger(String hex)
5. toBigInteger(byte[] bytes)
6. toBigInteger(final byte[] buffer, final int offset, final int length)
7. toBigInteger(final byte[] bytes)
8. toBigInteger(final Integer i)
9. toBigInteger(int arg)