Veritrans apply CV test

BinaryComplement

package other.veritrans;

import java.util.Scanner;
import java.util.logging.Logger;

/**
 * @author : Adiyat Mubarak
 * @email : adiyatmubarak@gmail.com
 * @blog : www.keda87.wordpress.com
 */
public class BinaryComplement {

    private static final Logger LOG = Logger.getLogger(BinaryComplement.class.getName());

    private Integer getIntegerComplement(Integer n) {
        String binN = Integer.toBinaryString(n);
        LOG.info(binN);

        String complement = "";
        for (int i = 0; i < binN.length(); i++) {
            complement += binN.charAt(i) == '1' ? '0' : '1';
        }
        LOG.info(complement);

        int[] pos = {128, 64, 32, 16, 8, 4, 2, 1};
        int hasil = 0;
        int tmpN = complement.length() - 1;
        int tmpPos = pos.length - 1;
        
        for (int i = 0; i < complement.length(); i++) {
            if (complement.charAt(tmpN) == '1') {
                hasil += pos[tmpPos];
            }
            tmpN--;
            tmpPos--;
        }
        return hasil;
    }

    public static void main(String[] args) {
        BinaryComplement veritrans = new BinaryComplement();
        Scanner sc = new Scanner(System.in);

        System.out.print("input     : ");
        int hasil = veritrans.getIntegerComplement(sc.nextInt());
        System.out.println("output    : " + hasil);
    }

}