private Controller cs[],ctrl;
cs = new DirectAndRawInputEnvironmentPlugin().getControllers();
// for() loop to assign the desired controller to ctrl

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JOptionPane;
import javax.swing.Timer;

public class Tela extends javax.swing.JFrame {
    public Tela() {
        // initialization
        addWindowListener( new WindowAdapter() {
            public void windowClosing(WindowEvent e){
                pollTimer.stop();
                System.exit(0);
            }
        });
        startPolling();
    }
    private void startPolling(){
        ActionListener pollPerformer = new ActionListener() {
            public void actionPerformed(ActionEvent e){
                if(controle.checa() == 1){ // returns the number of Controller.Type.STICK or Controller.Type.GAMEPAD controllers connected
                    // interface update
                }else if(controle.checa() == 0){
                    // prints that there are no controllers
                }else{
                    // prints that there are too much controllers
                }
            }
        };
        pollTimer = new Timer(DELAY, pollPerformer);
        pollTimer.start();
    }
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code"> // NetBeans generated code for interface elements
    // </editor-fold>                        
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Tela().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify // NetBeans generated code for interface elements
    // End of variables declaration
    private Controle controle = new Controle(); // class wrapped around JInput
    private Timer pollTimer;
    private static final int DELAY = 20;
}