P03SumPrimeNonPrime

package NestedLoops.Exercises;

import java.util.Scanner;

public class P03SumPrimeNonPrime {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        int sumPrime = 0;
        int sumNonPrime = 0;

        while (!input.equals("stop")){

            int currentNum = Integer.parseInt(input);

            boolean isPrime = true;

            if(currentNum < 0 ){
                System.out.println("Number is negative.");
                input = scanner.nextLine();
                continue;
            }

            for (int current = 2; current <= currentNum - 1 ; current++) {

                if(currentNum % current == 0){

                    isPrime = false;
                    sumNonPrime += currentNum;
                    break;
                }

            }

            if(isPrime){

                sumPrime += currentNum;
            }

            input = scanner.nextLine();
        }

        System.out.printf("Sum of all prime numbers is: %d%n", sumPrime);
        System.out.printf("Sum of all non prime numbers is: %d", sumNonPrime);
    }
}