event-dispatch-thread

问题 I am writing a program to collect information from two text files to add to tables in a database. In order to permit the user to select his own files I created a non-static method called chooseFile() that uses JFileChooser class to present a showOpenDialog (I've also tried it as a static method with the same results. If this sounds like I'm guessing, you're correct - I'm only so-so with programming). My understanding is that calls to Swing classes in main() should be done using invokelater .

问题 I am writing a program to collect information from two text files to add to tables in a database. In order to permit the user to select his own files I created a non-static method called chooseFile() that uses JFileChooser class to present a showOpenDialog (I've also tried it as a static method with the same results. If this sounds like I'm guessing, you're correct - I'm only so-so with programming). My understanding is that calls to Swing classes in main() should be done using invokelater .

问题 i'm programming a blackjack (single thread) for a university project and the dealer is the computer (e.g. no player action)... Does someone know how can I program in Java something like this: while (dealerpoints < 17) open card and repaint frame wait 1 sec (to run again the condition test for while) THe thing is, I don't want all dealer cards painted at once... Thanks in advance, Gabriel Sotero UPDATE: this is my code (that doesn't work) while (Dealer.getInstance().dealerPoints < 17){ Dealer

问题 Ok, this is a follow-up question to my question from yesterday, "Error handling in SwingWorker." In consideration of the fact that it might be ok to call SwingUtilities#invokeAndWait() inside of SwingWorker#doInBackground() , I want to push it a step further and ask: might it also be ok to call SwingUtilities#invokeLater() inside the background thread? Another SSCCE to illustrate: public class NewClass extends javax.swing.JFrame { public NewClass() { jScrollPane1 = new javax.swing.JScrollPane

问题 I'm trying to simulate betting results on a "horse race" by setting JSlider positions within a loop utilizing random numbers. My problem is that, of course, I can't get the GUI to update while the thread is executing, whereby my JSliders do not seem to be racing, they are going from start to finish. I've tried playing around with the code and separating them out into different methods, but I can't get around the single threaded swing issue. Is there a way to force an update or stop the thread

问题 I'm trying to simulate betting results on a "horse race" by setting JSlider positions within a loop utilizing random numbers. My problem is that, of course, I can't get the GUI to update while the thread is executing, whereby my JSliders do not seem to be racing, they are going from start to finish. I've tried playing around with the code and separating them out into different methods, but I can't get around the single threaded swing issue. Is there a way to force an update or stop the thread

问题 I'm trying to simulate betting results on a "horse race" by setting JSlider positions within a loop utilizing random numbers. My problem is that, of course, I can't get the GUI to update while the thread is executing, whereby my JSliders do not seem to be racing, they are going from start to finish. I've tried playing around with the code and separating them out into different methods, but I can't get around the single threaded swing issue. Is there a way to force an update or stop the thread

问题 I have a while loop that is supposed to update the program data and the GUI, but the GUI part freezes until the while loop is done executing. Here is my code: while(game.getCompTotal() < 17) { try { Thread.sleep(2500); } catch (Exception ex){ ex.printStackTrace(); } game.compHit(); // Program data update updateCardPanels(); // GUI update -- Does not update until the while loop finishes. if(game.checkCompBust()){ if(JOptionPane.showConfirmDialog(this, "Dealer Busted. Play again?") ==

问题 I have a function called CreateAccount . I need it to run and also need to show a progress bar. When I click the button, the method will start. And I need to start showing loading progress bar. Once method is done progress bar also should stop at 100. If the method gets more time to do the job, progress bar also needs to load slowly. I tried using following code but it is not synchronizing progress bar with the method. So how can I do that? Here is my code: private static int t = 0; private

问题 I've been fooling around with Java and I was trying to make a program that starts to ping an address and printing out the "ms". I have a JButton: JButton start = new JButton("START"); start.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ try { doCommand(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } }); And the doCommand() method looks like this: public static void doCommand() throws IOException{ String s = null;