Primorial Prime Numbers

Code:

import java.util.ArrayList;

public class PP {

    public static void main(String[] nt){

        // To avoid repetion of Primorial primes        ArrayList<Integer>integers=new ArrayList<>();

        //This is end Value        int x=11;


        for(int J=2;J<=x;J++) {
            int pn = 1;
//Calculating Primorial            for (int i = 2; i <= J; i++) {
                if (isprime(i)) {
                    pn = pn * i;
                }
            }
//Checking For Prime            if(isprime(pn-1)){
                if(!integers.contains(pn-1)){
                    integers.add(pn-1);
                }

            }if(isprime(pn+1)){
                if(!integers.contains(pn+1)){
                    integers.add(pn+1);
                }
            }
        }
//Printing all Primorial Primes        for (int a:integers){
            System.out.println(a);
        }


    }

    static boolean isprime(int n){

        for (int i=2;i<=n/2;i++){
            if(n%i==0){
                return false;
            }
        }
        return true;
    }

}

Output: