swingworker

问题 WatchService sounded like an exciting idea ... unfortunately it seems to be as low-level as warned in the tutorial/api plus doesn\'t really fit into the Swing event model (or I\'m missing something obvious, a not-zero probability Taking the code from WatchDir example in the tutorial (simplyfied to handle a single directory only), I basically ended up extend SwingWorker do the registration stuff in the constructor put the endless loop waiting for a key in doInBackground publish each WatchEvent

问题 First, I need to inform you that I am trying my hardest to learn how to code in Java. Its been a little bit difficult, but, I do believe I have it. I have submitted a couple question in the past in regards to SwingWorkers and the like. Each of which I thought I had it, but come to find out that I still had learning to do. Hopefully this time, is not one of those times. With that said, please let me know of anything you see that isn\'t to standard, or, could lead to problems in the future. Now

问题 A few days ago i tried to create a server - client or client Server as an experiment to learn about socket using a thread but then someone told me that i should use swingWorker. I did some research how to use and have implemented it in as practice but it still doesn\'t work. the swingWorker thread doesn\'t look like it is running even tho i get a connection and have used .excute(). If you guys can help spot where i am doing wrong that will be great. SwingWorker class is in the startSever()

问题 Im making a backup program, and I want everything that i have the program backing up displayed on a JTextArea. well, it works, but only after the program is finished with the backup. How do i fix this? The code i have running this is here: backup method public void startBackup() throws Exception { // txtarea is the JTextArea Panel.txtArea.append(\"Starting Backup...\\n\"); for (int i = 0; i < al.size(); i++) { //al is an ArrayList that holds all of the backup assignments selected // from the

问题 I have been working with SwingWorkers for a while and have ended up with a strange behavior, at least for me. I clearly understand that due to performance reasons several invocations to publish() method are coallesced in one invocation. It makes perfectly sense to me and I suspect SwingWorker keeps some kind of queue to process all that calls. According to tutorial and API, when SwingWorker ends its execution, either doInBackground() finishes normally or worker thread is cancelled from the

问题 What I am trying to do ? At the click of the Start JButton , the SwingWorker will execute. Inside the doInBackground() method, I am passing each index of arrNames , to the publish() method, so that it can be displayed inside the JTextArea . What happened ? If I do not keep line System.out.format(\"Counter : %d%n\", counter); as a comment , in my doInBackground() method of the SwingWorker , then the SwingWorker is working as expected . Though if I comment it out , then the SwingWorker stops

问题 hi id like to know whats the best way to add text to a jtextarea from a swingworkerthread, ive created another class which a jbutton calls by Threadsclass().execute(); and the thread runs in parallel fine with this code public class Threadsclass extends SwingWorker<Object, Object> { @Override protected Object doInBackground() throws Exception { for(int x = 0; x< 10;x++) try { System.out.println(\"sleep number :\"+ x); Thread.sleep(1000); } catch (InterruptedException ex) { Logger.getLogger

问题 I\'d like to know how to add a time delay inside a Swing app in Java, I used Thread.sleep(time) , and also I used SwingWorker but it doesn\'t work. Here\'s part of my code: switch (state) { case \'A\': if (charAux == \'A\') { state = \'B\'; //Here\'s where I\'d like to add a time delay jLabel13.setForeground(Color.red); break; } else { //Here\'s where I\'d like to add a time delay jLabel12.setForeground(Color.red); break; } } I hope you could help me or solve my doubts when I\'m using

问题 I\'m having a problem with my JButton ActionListener. I have a doTheCleaning() method defined in another class which when called makes series of changes to my GUI. public void doTheCleaning(){ //change image icon //had thread.sleep here //insert to text area //had thread.sleep here //etc } Then in another class, I instantiated the class containing my doTheCleaning() method and had my ActionListener written with my actionperformed() method for my jbutton written like this: public void

问题 My problem is that I don\'t understand how the swingworker works because what I\'m trying to do is to make fa=worker.get() because I have a long method which compute a lot of points running in background because I don\'t want to freeze my interface and I want to get her results to paint the component image. But I don\'t understand where it goes when I do fa=worker.get() because my console prints \"titi\" and I put a lot of other printing to see the next part of program reached but no one is