sto cercando di imparare il j2me ma non avendo un buon manuale ho un ppo di problemi.
non riesco a rendere visibile il prodotto del metodo paint(Graphics g);
ecco il codice:

codice:
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class HelloMIDlet extends MIDlet implements CommandListener {

    private Command exitCommand; // The exit command
    private Display display;     // The display for this MIDlet
    private Image image = null;
    private int width = 0;
    private int height = 0;
    public HelloMIDlet() {
        
        exitCommand = new Command("Exit", Command.EXIT, 0);
    }

    public void startApp() {
        
    }
 protected void paint(Graphics g)
    {
        g.setColor(0, 0, 255);
        g.fillRect(0, 0, width, height);
       display = Display.getDisplay(this);
    }
    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable s) {
        if (c == exitCommand) {
            destroyApp(false);
            notifyDestroyed();
        } 
    }

}