Write a java Program to check whether given number is Prime or Not.

 1. Write a java Program to check whether given number is Prime or Not.

import java.util. *;

class prime{
   public static void main(String args[]){
   int n = 13;
   int i = 1;
   int count = 0;
   
   
   while (i <= n){
      if (n % i == 0 ){
      count = count + 1;
      }
      i = i+ 1;
      }
   
   if (count == 2) {
   System.out.println("Prime no");
   } else {
   System.out.println("non prime no.");
   }

}
}

Prime no