Java BigInteger to bigIntToArray(BigInteger data)

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Description

big Int To Array

License

Open Source License

Declaration 

public static int[] bigIntToArray(BigInteger data)

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static int[] bigIntToArray(BigInteger data) {
        List<Integer> dataList = new ArrayList<Integer>();
        for (int i = 0; data.bitCount() > 0; i++, data = data.shiftRight(1)) {
            if (data.testBit(0))
                dataList.add(i);//w ww .j  ava2  s  . c  om
        }

        int[] dataArr = new int[dataList.size()];
        for (int i = 0; i < dataArr.length; i++)
            dataArr[i] = dataList.get(i);

        return dataArr;
    }
}

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