Java.math.BigInteger.probablePrime() method in Java

import java.math.*; import java.util.Random; import java.util.Scanner; public class GFG {  public static void main(String[] args)  {  Scanner sc = new Scanner(System.in);  // create a BigInteger object  BigInteger biginteger;  // create a integer value for bitLength  int length = 4;  // create a random object  Random random = new Random();  // call probablePrime method to find next probable prime  // whose bit length is equal to bitLength provided as parameter.  biginteger = BigInteger.probablePrime(length, random);  String result = "ProbablePrime whose bit length is "  + length + " = " + biginteger;  // print result value  System.out.println(result);  } }