Prime No. Program

package Prog;

import java.util.Scanner;

public class PrimeNo
{

  public static void main(String a[])
  {

        System.out.println("Enter no. to verify, prime or not");
    Scanner sc=new Scanner(System.in);
int n= sc.nextInt();
boolean isP=true;

     for(int i=2; i<n/2; i++)
      {

        if (n%i==0)
             {
              System.out.println("No is not prime");
               isP=false;
               break;
           }
       }
if (isP)
{
System.out.println(" No is prime");

}


}


}

Output:
--------------------------------------------------------------------------------------------------------------------------

Enter no. to verify
15
No is not prime