Java BigInteger Calculate getLongAsUnsignedBigInteger(long number)

Description

get Long As Unsigned Big Integer

License

Open Source License

Declaration

public static BigInteger getLongAsUnsignedBigInteger(long number) 

Method Source Code

//package com.java2s;
/*//from   w  w w .j av a2  s . com
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * 
 * 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. See accompanying LICENSE file. 
 */

import java.math.BigInteger;

public class Main {
    private final static BigInteger B64 = BigInteger.ZERO.setBit(64);

    public static BigInteger getLongAsUnsignedBigInteger(long number) {
        if (number >= 0)
            return BigInteger.valueOf(number);
        return BigInteger.valueOf(number).add(B64);
    }
}

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