jframe

I'm working on application and I'm making the GUI with Swing. I would like my application to be fullscreen. I can easily set the size of the window however I have not been able to make the application truly fullscreen (IE With the apple menu bar and dock hidden). All the answers I have found online don't seem to work for me. I'm new to Java so any help is appreciated. frame = new JFrame("Test"); frame.setTitle("Test"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JLabel emptyLabel = new JLabel(""); Dimension dimension = Toolkit.getDefaultToolkit().getScreenSize(); frame.getContentPane

I have the following simple code in a JFrame constructor super(name); setBounds(0,0,1100,750); setLayout(null); setVisible(true); g = this.getGraphics(); int[] x =new int[]{65, 122, 77, 20, }; int[] y =new int[]{226, 258, 341, 310}; g.setColor(Color.RED); g.drawPolygon (x, y, x.length); System.out.println(g); I get the output on console as: sun.java2d.SunGraphics2D[font=java.awt.Font[family=Dialog,name=Dialog,style=plain,size=12],color=java.awt.Color[r=255,g=0,b=0]] But no red polygon drawn on JFrame but just the blank JFrame. Why ?? Dont override paint(..) in JFrame Rather add custom JPanel

I'm trying to add an image to one frame but it seems it does not working. The image created by an ImageIcon from the specified file. The image file is in the seam directory the java file exist. import java.awt.BorderLayout; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; public class image { public static void main(String args[]) { TimeFrame frame = new TimeFrame(); } } class TimeFrame extends JFrame { //Image icon = Toolkit.getDefaultToolkit().getImage("me.jpg"); ImageIcon icon = new ImageIcon("me.jpg"); JLabel label = new JLabel(icon); public TimeFrame(){

I am extending JFrame like this: public GameFrame() { this.setBounds(30, 30, 500, 500); this.setDefaultCloseOperation(EXIT_ON_CLOSE); initializeSquares(); } private void initializeSquares(){ for(int i = 0; i < 5; i++){ this.getContentPane().add(new Square(i*10, i*10, 100, 100)); } this.setVisible(true); } However, only one square is being drawn on the screen, does anybody know why? also My Square class looks like this: private int x; private int y; private int width; private int height; public Square(int x, int y, int width, int height){ this.x = x; this.y = y; this.width = width; this.height

There are two different Frames in my program and the second one open when i click the jButton is the first frame,so when the second frame is opened, I want the second frame to be always on top and focused until it is close. user can't be allowed to do anything in the first window until the second window is closed. how can i do this? JFrame frame = new JFrame (); frame.setAlwaysOnTop (true); If you want frame to be always focused, you probably need to use modal dialog instead of JFrame: JDialog dialog = new JDialog (); dialog.setModal (true); dialog.setAlwaysOnTop (true); dialog.setModalityType

Does anyone know which icon sizes to use with the setIconImages() (PLURAL) method for a jFrame so that my app icons display well on all platforms and in all contexts (e.g., window icon, taskbar icon, alt-tab icon, etc.)? I've found an example that uses a 16px-by-16px and a 32px-by-32px image, but do I need to go any bigger? To test, I have also tried adding 64px and 128px versions to the List passed to setIconImages(), but these do not seem to be used on my Windows 7 machine. However, I cannot test easily on other machines, so am wondering if anyone knows which sizes I should include? Alan

I was wondering if there is a way, by clicking on the "X", to let the program perform some code before closing the JFrame. The setDefaultCloseOperation() method takes only an integer. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); You might be interested in using a WindowListener . The WindowListener tutorial . this.addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ int i=JOptionPane.showConfirmDialog(null, "Seguro que quiere salir?"); if(i==0) System.exit(0);//cierra aplicacion } }); Ryan Stewart @Jeffrey has a good answer, but you should consider what you're