Prime Checker

  • + 3 comments

    Hi, do you think this version will be faster? wanna hear your thought.

    class Prime {
        void checkPrime(int... numbers) {
            for (int num : numbers) {
                if (isPrime(num)) {
                    System.out.print(num + " ");
                }
            }
            System.out.println();
        }
        
        boolean isPrime(int n) {
            if (n < 2) {
                return false;
            }
            for (int i = 2; i <= (int) Math.sqrt(n) && isPrime(i); i++) {
                if (n % i == 0) {
                    return false;
                }
            }
            return true;
        }     
    }