Display.create();
Display.create(format);
    private void initDisplay() {        //create the Display.        DisplayMode mode = getValidDisplayMode(width, height, bpp, frq);        if (null == mode) { throw new JmeException("Bad display mode"); }        try {            Display.setDisplayMode(mode);            Display.setFullscreen(fs);						if (!fs) {							int x, y;							x = (Toolkit.getDefaultToolkit().getScreenSize().width - width) >> 1;							y = (Toolkit.getDefaultToolkit().getScreenSize().height - height) >> 1;							Display.setLocation(x,y);						}						Display.create();            // kludge added here...  LWJGL does not properly clear their            // keyboard and mouse buffers when you call the destroy method,            // so if you run two jme programs in the same jvm back to back            // the second one will pick up the esc key used to exit out of            // the first.            Keyboard.poll();            Mouse.poll();        } catch (Exception e) {            //System.exit(1);            LoggingSystem.getLogger().log(Level.SEVERE, "Cannot create window");            LoggingSystem.getLogger().throwing(this.getClass().toString(),                    "initDisplay()", e);            throw new Error("Cannot create window: " + e.getMessage());        }    }