Java BigInteger From toBigInteger(@Nullable final byte[] value)

Description

to Big Integer

License

Apache License

Declaration

public static BigInteger toBigInteger(@Nullable final byte[] value) 

Method Source Code

//package com.java2s;
/*// www  . j  a v a 2 s . c o  m
 * Copyright (c) 2014  Haixing Hu
 *
 * 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.
 *
 */

import java.math.BigInteger;

import javax.annotation.Nullable;

public class Main {
    public static BigInteger toBigInteger(@Nullable final byte[] value) {
        return toBigInteger(value, null);
    }

    public static BigInteger toBigInteger(@Nullable final byte[] value, @Nullable final BigInteger defaultValue) {
        if (value == null) {
            return defaultValue;
        } else if (value.length == 0) {
            return BigInteger.ZERO;
        } else {
            try {
                return new BigInteger(value);
            } catch (final NumberFormatException e) {
                return defaultValue;
            }
        }
    }
}

Related

1. convertToBigInteger(String sequence)
2. getUnsignedBigInteger(byte[] data, int offset, int length)
3. getUnsignedBigInteger(long x)
4. string2BigInteger(String plaintext)
5. toBigInteger(@Nullable final Boolean value, @Nullable final BigInteger defaultValue)
6. ToBigInteger(BitSet bs)
7. toBigIntegerFromHex(String val)