jframe

I have 2 classes, My main class creates a frame and I want another class to add content to it. A bit of reading arroudn told me I should use components to do this however when I run my code the frame is empty. public static void main(String[] args) { // create frame JFrame frame = new JFrame(); final int FRAME_WIDTH = 800; final int FRAME_HEIGHT = 600; // set frame attributes frame.setSize(FRAME_WIDTH, FRAME_HEIGHT); frame.setTitle("My Frame"); frame.setVisible(true); Component1 Com = new Component1(); Component add = frame.add(Com); } My Component class creates a JLabel public class

I'm beginner woth java programming I tried to make my jframe shows but it didn't jframe.setVisible(true); it doesn't works I think you didn't declare correctly your JFrame. Here is an example creating a simple frame : public static void main(String[] args) { // Creating a frame JFrame frame = new JFrame("Example"); // Setting the position and the size of the frame frame.setBounds(0,0,800,600); // This will terminate the program when closing the frame frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // Then you can display your frame frame.setVisible(true); } 来源： https://stackoverflow.com

I'm making a game with a timer and a JFrame (and many other things but only these 2 are causing problems), and after running the segments below, I got a weird error. At least for me who has never used these classes prior to this. Start executing this private static GameView window; private static Timer time; public static void main(String args[]) { window = new GameView(800,600); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); window.setVisible(true); time = new Timer(); time.schedule( new TimerTask(){ public void run(){GameState.update(); window.paintComponents(null);} },0, 40); }

I was wondering if there was a way that is better than using the Toolkit.getDefaultToolkit().getScreenSize().getHeight()/getWidth(); and then using that as the dimensions for the JFrame and then setting the JFrame to undecorated ? Would there be some sort of pre-built function in Java that takes control of the graphics card for a true fullscreen? You're after what's called "full-screen exclusive mode" Have a look at Full-Screen Exclusive Mode for more details. Understand though, it doesn't play well with Swing. Under Mac OS X 10.7, you can access the full screen support it provides for

I have got one J Frame that includes 2 panels , I was able to switch between them using Visible but I want them to appear in the same position and the same size the other was in. Use a CardLayout to swap JPanels. The tutorial can be found here: CardLayout tutorial . When you do this, you will need a JPanel to be set to use the CardLayout and which will hold your other two JPanels. You will need to add these JPanels to the CardLayout using JPanel with String constants, so that the CardLayout will be able to identify the views with a String. For instance: CardLayout cardLayout = new CardLayout()

I have a JFrame (undecorated) with a Glasspane. This Frame opens a JDialog (also undecorated and has also a glassPane) and hides itself (setVisible(false)). The Glasspanes are set with .setGlassPane(). The Dialog is opened with the Frame as owner. The GlassPane extends a JPanel and implements AWTEventListener. I use it for resizing the Frames and Dialogs, so it knows it's parent (the Frame/Dialog) - this is called "target". The Events inside the GlassPane are handled like this: public void eventDispatched(AWTEvent event) { if (target instanceof JFrame) { e = SwingUtilities.convertMouseEvent( (