JAVA Program To Check Given Number Is Prime-Adam or Not [ISC 2020 Practical]

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/**
 * QUESTION : A Prime-Adam integer is a positive integer (without leading zeros) which is a prime as well as an Adam number.
 * @theschoolprogrammer
 * www.theschoolprogrammer.com 
 */

import java.util.*;
public  class PrimeAd
{ 
    static boolean Prime(int n)

    //function to check given number is prime or not
    {
        int i,f=0;
        for(i=1;i<=n;i++)
        {
            if(n%i==0)
                f++;
        }
        if(f==2)
            return(true);
        else
            return(false);
    }

    static int Reverse(int n)//returns reverse of a number
    {
        String s=Integer.toString(n);

        //converting number to string for easy algorithm
        int i;
        String ns="";
        for(i=0;i<s.length();i++)
        {
            ns=s.charAt(i)+ns;

        }

        return(Integer.valueOf(ns));

    }

    static void main()
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("ENTER FIRST NUMBER");
        int n=sc.nextInt();

        int k=(int)Math.pow(Reverse(n),2);

        if((Prime(n)==true) &&(Reverse(n*n)==k))
        {              
            System.out.print("YES IT IS!!");
        }
        else
            System.out.print("NOPE");
    }
}