Returns a randomly selected BigInteger with the specified bitLength that is probably prime. The execution time is proportional to the value of the certainty parameter. The given random number generator is used to select candidates to be tested for primality. Returns a BigInteger with the specified value. Returns a BigInteger whose value is the absolute value of this number.
Sign extension is performed.
ArithmeticException Returns true iff the designated bit is set. Returns -1 if this number contains no one bits. This method is useful when implementing bit-vector style sets atop BigIntegers. Returns true if this BigInteger is probably prime, false if it's definitely composite. The execution time is proportional to the value of the certainty parameter.