Java BigInteger Calculate trimToPrecision(BigInteger number, int precision)

Description

trim To Precision

License

Apache License

Declaration

public static BigInteger trimToPrecision(BigInteger number, int precision) 

Method Source Code

//package com.java2s;
/**/*w  w  w  .  j  av a  2s.  c om*/
 *
 * maer - Solutions to problems of Project Euler
 * Copyright (C) 2011, Sandeep Gupta
 * http://www.sangupta.com/projects/maer
 *
 * The file is licensed under the 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 trimToPrecision(BigInteger number, int precision) {
        String n = number.toString();
        if (n.length() > precision) {
            n = n.substring(n.length() - precision);
        }
        return new BigInteger(n);
    }
}

Related

1. sum(BigInteger... values)
2. sumOfDigits(BigInteger ab)
3. sumOfDigits(BigInteger n)
4. trim(BigInteger bi)
5. trim(BigInteger n)
6. uint64ToByteStreamLE(BigInteger val, OutputStream stream)
7. unsignedBigIntergerToByteArray(BigInteger bigInteger)
8. unsignedLongToBigInteger(byte[] source)
9. unsignedToBigInteger(long l)