Decimal Compliment (Binary)

Main.java

import java.util.ArrayList;
import java.util.Scanner;

/**
 * Created by Nithesh on 8/9/2016.
 * Get an Integer Compliment.
 */
public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        ArrayList<Integer> binList = new ArrayList<>();
        int result = 0;
        int n = sc.nextInt();
        String unique = Integer.toBinaryString(n);
        for(int i=0; i < unique.length(); i++)
        {
         if(unique.charAt(i) == '0')
            {
             binList.add(1);
            }
         else
            {
             binList.add(0);
            }
        }

       int fresult=  Integer.parseInt(binList.toString().replaceAll("[^01]", ""), 2);
        System.out.println(unique);
        System.out.println(fresult);


    }
}