Java BigInteger From convertToBigInteger(String s)

Description

convert To Big Integer

License

Apache License

Declaration

public static BigInteger convertToBigInteger(String s) 

Method Source Code

//package com.java2s;
/*/*from  ww  w  . ja  va 2 s  .c om*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 convertToBigInteger(String s) {
        if ((s == null) || s.equals("")) {
            return null;
        }
        if (s.startsWith("+")) {
            s = s.substring(1);
        }
        return convertToInteger(s);
    }

    public static BigInteger convertToInteger(String s) {
        if ((s == null) || s.equals("")) {
            return null;
        }
        if (s.startsWith("+")) {
            s = s.substring(1);
        }
        return new BigInteger(s);
    }
}

Related

1. byteArrayToBigInteger(final byte[] data)
2. ByteArrayToBigIntegerWithoutSign(byte[] array)
3. bytesToBigInteger(byte[] buffer)
4. bytesToBigInteger(byte[] data)
5. bytesToBigInteger(byte[] data, int[] offset)
6. convertToBigInteger(String sequence)
7. getUnsignedBigInteger(byte[] data, int offset, int length)
8. getUnsignedBigInteger(long x)
9. string2BigInteger(String plaintext)