Java BigInteger Calculate castToBigInteger(Object val)

Description

cast To Big Integer

License

Apache License

Declaration

public static BigInteger castToBigInteger(Object val) 

Method Source Code

//package com.java2s;
/*//  www.  j av a2s  . c o m
 * Copyright 1999-2101 Alibaba Group Holding Ltd.
 *
 * 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;

public class Main {
    public static BigInteger castToBigInteger(Object val) {
        if (val == null) {
            return null;
        }

        if (val instanceof BigInteger) {
            return (BigInteger) val;
        }

        if (val instanceof String) {
            return new BigInteger((String) val);
        }

        return BigInteger.valueOf(((Number) val).longValue());
    }
}

Related

1. bitArrayToUnsignedBigInteger(int[] bits)
2. bitcoinValueToFriendlyString(BigInteger value)
3. byte_size(BigInteger bi)
4. calculateGx(BigInteger p, BigInteger g, BigInteger x)
5. calculateRx_(BigInteger Rx, BigInteger n)
6. chop(BigInteger in, int bits)
7. clip(BigInteger bi, int numberOfBytes)
8. clone(BigInteger[] data)
9. copy_into_byte_array(BigInteger bi, byte[] a)