Write a program to check that the entered no is prime or not.

import java.util.*;

class PrimeNo

 {

  public static void main(String[] args)

  {

   int num;

   int i;

   Scanner in=new Scanner(System.in);

   System.out.println("enter the value of num");

   num=in.nextInt();

   for (i=2; i < num ;i++ )

    {

     int n = num%i;

     if (n==0)

       {

         System.out.println("not Prime!");

         break;

       }

    }

     if(i == num)

      {

       System.out.println("Prime number!");

      }

  }

}