Details presentation methods and update

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JPanel;
import javax.swing.Timer;


/*show the glove-state values on command-line*/
@SuppressWarnings("serial")
public class ShowGloveValues extends JPanel{

    public final Glove glove;
    public Timer pollTimer;
    public static final int GLOVE_DELAY = 50;


    /*print glove-values to the command-line*/
    public ShowGloveValues(){

        /*init the glove*/
        glove = new Glove();

        /*start to update the glove states*/
        startPolling();

    }


    /*show the hand position*/
    private void showHandPosition(){

        final float vals[] = glove.getHandPosition();

        System.out.println("x-position: " + vals[0]);
        System.out.println("y-position: " + vals[1]);
        System.out.println("z-position: " + vals[2]);
        System.out.println();
    }


    /*show the hand orientation*/
    private void showHandOrientation(){

        final float vals[] = glove.getHandOrientation();

        System.out.println("pitch:" + vals[0]);
        System.out.println("yaw:" + vals[1]);
        System.out.println("roll:" + vals[2]);
    }


    private void showLedNumber(){

        final byte leds[] = glove.getVisibleLedPos();

        System.out.print("Led number: " + leds[0] + " ");
    }

    private void showTrackedLed(){

        final int ledPos = glove.getTrackedLed();

        System.out.print ("Tracked Led: " + ledPos + " ");
    }

    public  String showActiveLedPosX(){

        final float pos[][] = glove.getActiveLedPos();

        return  "" + pos[glove.getTrackedLed()][0];
    }

/*update the glove and show the glove-state values*/
protected void startPolling(){

        final ActionListener pollPerformer = new ActionListener(){
            public void actionPerformed(final ActionEvent e){

                glove.update();

                showActiveLedPosX();

                /*exit by double-pressed D-button*/
                if (glove.isDpressed()) {
                    pollTimer.stop();
                    System.exit(0);
                }
            }
        };

    /*next update after GLOVE_DELAY ms*/
    pollTimer = new Timer(GLOVE_DELAY, pollPerformer);
    pollTimer.start();
    }
}