Good afternoon. I'm starting programming in java and blackberry. I am developing an application with three windows, which I will show basic information about the device, these windows are already done and working. I need to create a process running in the background, this process will run every 10 minutes. As I make this process run in the background and is working to close the windows?

This is the kind that runs the application:

    public class InfoBerry extends UiApplication{
    public vtnprincipal vtnprincipal;
    public vtnbateria vtnbateria;
    public vtnestado vtnestado ;
    public vtnacerca vtnacerca;

    public InfoBerry(){

    }

    public static void main(String[] args) {
            InfoBerry theApp = new InfoBerry();
            theApp.mostrarpantalla();
    }
    public void mostrarpantalla(){

        vtnprincipal = new vtnprincipal(this);
        vtnbateria = new vtnbateria(this);
        vtnestado = new vtnestado(this);
        vtnacerca = new vtnacerca(this);
        // Inicailizamos los componentes de la pantalla principal
        vtnprincipal.incventana();
        // La pnemos en lo alto de la pila de pantallas

        pushScreen(this.vtnprincipal);
        }
}

And this is the class you need to run in the background. As I have to make the call to this class to run in the background?

class iconnoti extends MainScreen{
    //icono de la temperatura
    EncodedImage imgtem = 
            EncodedImage.getEncodedImageResource("icon_bateria_t.png");
    ApplicationIcon icontem = new ApplicationIcon(imgtem);
  //icono de la carga de la bateria
    EncodedImage imgcarga = 
            EncodedImage.getEncodedImageResource("icon_bateria.png");
    ApplicationIcon iconcarga = new ApplicationIcon(imgcarga);
    //icono de la memoria
    EncodedImage imgmemo = 
            EncodedImage.getEncodedImageResource("icon_memoria.png");
    ApplicationIcon iconmemo = new ApplicationIcon(imgmemo);
    ApplicationIcon mIcon = icontem;
    boolean act;
    public iconnoti() {


    }

    public void rotar_temperatura(){
        cron c1;
        actualizar_icono(icontem);
        actualizar_valor(DeviceInfo.getBatteryTemperature());

        c1 = new cron(2,10000);
        c1.start();


    }
    public void rotar_memoria(){
        cron c1;
        actualizar_icono(iconmemo);
        actualizar_valor(34);

        c1 = new cron(3,10000);
        c1.start();

    }
    public void rotar_nivel(){
        cron c1;
        actualizar_icono(iconcarga);
        actualizar_valor(DeviceInfo.getBatteryLevel());
        c1 = new cron(1,10000);
        c1.start();

    }

   public void iniciar_servicio() {
       try {

           ApplicationIndicatorRegistry reg = 
                    ApplicationIndicatorRegistry.getInstance();
                ApplicationIndicator Indicator = 
                    reg.register(mIcon, false, true);
                } catch (Exception e) {

        }
    }

    public  void parar_servicio() {
        try {
                ApplicationIndicatorRegistry reg = 
                    ApplicationIndicatorRegistry.getInstance();
                reg.unregister();
        } catch (Exception e) {
        }
    }

    void actualizar_valor(int value) {
        try {
                ApplicationIndicatorRegistry reg = 
                    ApplicationIndicatorRegistry.getInstance();
                ApplicationIndicator appIndicator = 
                    reg.getApplicationIndicator();
                appIndicator.setValue(value);
        } catch (Exception e) {
        }
    }

    void actualizar_icono(ApplicationIcon icon) {
        try {
                ApplicationIndicatorRegistry reg = 
                    ApplicationIndicatorRegistry.getInstance();
                ApplicationIndicator appIndicator = 
                    reg.getApplicationIndicator();
                appIndicator.setIcon(icon);
        } catch (Exception e) {
        }
    }
}

class cron extends Thread {
    //private ApplicationIcon icono;
    public int valor;
    private int tiempo;
    iconnoti icon = new iconnoti();

    public cron(int v, int t){
        valor = v;
        tiempo = t;
    }

    public void run() {
        try {
            sleep(tiempo);
        } catch (InterruptedException e) {  

        }
        if(valor == 1){
            icon.rotar_temperatura();
        }else if(valor == 2){
            icon.rotar_memoria();
        }else if(valor == 3){
            icon.rotar_nivel();
        }

    }           

}

Thanks for the help.