BigInteger bi= new BigInteger("4");
// create and assign value to bitLength
int bitLength = 102;
// create a random object
Random rnd = new Random();
// assign probablePrime result to bi using bitLength and rnd
// static method is called using class name
while (!isPrime (bi)){
bi = BigInteger.probablePrime(bitLength, rnd);
String str = "ProbablePrime of bitlength " + bitLength + " is " +bi;
// print bi value
System.out.println( str );
return bi;
}