Java Utililty Methods BigInteger from Stream

List of utility methods to do BigInteger from Stream

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Description

The list of methods to do BigInteger from Stream are organized into topic(s).

Method

BigIntegerreadBigInteger(ByteArrayInputStream bais)
read Big Integer 
return new BigInteger(readData(bais));
BigIntegerreadBigInteger(DataInputStream dis)
Read a (reasonably short) BigInteger from a DataInputStream param dis the stream to read from return a BigInteger 
short i = dis.readShort();
if (i < 0) {
    throw new IOException("Invalid BigInteger length: " + i);
byte[] buf = new byte[i];
dis.readFully(buf);
return new BigInteger(1, buf);
BigIntegerreadBigInteger(InputStream input)
Read the signed arbitrary sized BigInteger BigInteger in vint format 
BigInteger result = BigInteger.ZERO;
long work = 0;
int offset = 0;
long b;
do {
    b = input.read();
    if (b == -1) {
        throw new EOFException("Reading BigInteger past EOF from " + input);
...
BigIntegerreadBigInteger(int n, DataInput dis)
read Big Integer 
BigInteger ret = BigInteger.ZERO;
byte[] temp = new byte[n];
dis.readFully(temp, 0, n);
for (int j = n - 1; j >= 0; j--) {
    ret = ret.or(BigInteger.valueOf(0xFF & temp[j]));
    ret = ret.shiftLeft(8);
ret = ret.shiftRight(8);
...
BigIntegerreadLineAsBigInteger(BufferedReader br)
Executes readline with the given buffered reader Converts the read string to an BigInteger 
String str = br.readLine();
if (str == null) {
    throw new IOException();
return new BigInteger(str);
BigIntegerreadLuposBigInteger(final int numberOfBits, final InputStream is)

readLuposBigInteger.

BigInteger result = BigInteger.ZERO;
BigInteger factor = BigInteger.ONE;
final BigInteger BYTE = BigInteger.valueOf(256);
int remainingBits = numberOfBits;
while (remainingBits > 0) {
    final int currentValueByte = is.read();
    if (currentValueByte < 0) {
        return null;
...