Java Method definition calculate Twin prime numbers

Question

Twin primes are a pair of prime numbers that differ by 2.

For example, 3 and 5 are twin primes, 5 and 7 are twin primes, and 11 and 13 are twin primes.

We would like to write a program to find all twin primes less than 1,000. Display the output as follows: 

(3, 5) 
(5, 7) 
... 


public class Main {

    public static void main(String[] args) {

        for (int i = 2; i < 1000; i++) {

            //your code here
        }// w ww.j  a  v a 2s  .  c  om
    }

   

}





public class Main {

    public static void main(String[] args) {

        for (int i = 2; i < 1000; i++) {

            if (isPrime(i) && isPrime(i + 2)) {
                System.out.printf("(%d, %d)\n", i, i + 2);
            }
        }
    }

    public static boolean isPrime(long n) {

        if (n < 2) return false;

        for (int i = 2; i <= n / 2; i++) {

            if (n % i == 0) return false;
        }
        return true;
    }

}



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