package testprime;
import javax.swing.*;

public class TestPrime {

    public static void main(String[] args) {
        int num = Integer.parseInt(JOptionPane.showInputDialog("Enter a number"));

        boolean check = testPrime(num);
        if (check == true)

        System.out.println("The number"+ num +"is a prime number");

        else
            System.out.println("The number"+ num +"is not a prime nummber");


          static boolean testPrime(int n)

        {
         int i = 2;
         boolean isPrime = true;


         while(i <= (int)Math.sqrt(n) && iPrime == false)
         {
             if (n % i ==0)
                 isPrime = false;
             i++;
         }
         return isPrime;
        }
    }

}