Hi

How can I change an array list to integer or double?

this is my code and i want show answer like a number and i use it not just print it...

import java.util.*;
public class JavaApplication28 {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("give me a number:");
        int s = input.nextInt();
        ArrayList a = new ArrayList();
        
          do {
                 a.add(s%2);
                 s = s/2;
        } while (!(s/2 == 0 && s%2 == 0));
          
        
        
            
          
        System.out.println("...................");
        for (int i = a.size()-1; i >= 0; i--) {
            System.out.print(a.get(i));
        }
        System.out.println(" ");
        System.out.println("...................");
    }
    
}

This is a code to give a number and exchange to binary

and this code just print it and i cant use it

another one::(for get a number and give you mirror type ex: 698 => 896)

import java.util.*;
public class JavaApplication27 {

    
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        ArrayList array = new ArrayList();
        System.out.println("give me a num");
        int x = input.nextInt();
        double y = 0;
        while ( x >= 1) {
            array.add(x%10);
            x = x/10;
            
        }
        //System.out.println(array);
        for (int i = 0; i < array.size(); i++) {
            System.out.print(array.get(i));
        }
      
    }
    
}

I want to use the mirror type...