import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;

public class Nokia extends MIDlet implements CommandListener {

public static MIDlet main;    
public static Display display;
public Command c1 = new Command("EXIT", Command.OK, 0);
public Command c2 = new Command("-", Command.HELP, 0);
public Command c3 = new Command("+", Command.EXIT, 0);
public static double w = 5;

public void startApp() {

main = this;    
MyCanvas canvas = new MyCanvas();
canvas.addCommand(c1);
canvas.addCommand(c2);
canvas.addCommand(c3);
canvas.setCommandListener(this);
display = Display.getDisplay(this);
display.setCurrent(canvas);
}

public void pauseApp() {}
public void destroyApp(boolean unconditional) {}
public void commandAction(Command c, Displayable d) {
    
if (c == c1) { Nokia.main.notifyDestroyed(); }
if (c == c2) { Nokia.w = Nokia.w - 1; }
if (c == c3) { Nokia.w = Nokia.w + 1; }
}
}