Generate the next prime of a number in Java

Java java.math.BigInteger class contains a method nextProbablePrime () to check the primality of a number.

import java.math.BigInteger;

public class NextPrime {

            public static void main(String[] args) {

                        int number = 83;

                        Long nextPrime = nextPrime(number);

                        System.out.println(nextPrime + " next prime to " + number);

            }

            /**

             * method to find next prime

             * @param number

             * @return boolean

             */

            private static Long nextPrime(int number) {

                        BigInteger bValue = BigInteger.valueOf(number);

                       

                        /**

                         * nextProbablePrime method used to generate next prime.

                         * */

                        bValue = bValue.nextProbablePrime();

                       

                        return Long.parseLong(bValue.toString());

            }

}

Output:

            89 next prime to 83

https://en.wikipedia.org/wiki/Miller–Rabin_primality_test