Displaying the progress of a thread in percent number with a JProgressBar

Question

I have a button that search some files, so I'm trying to display the progress of this task in a progress bar with percent numbers. I'm using another thread to execute this task, but it takes long time so I'd like to show it in a progress bar.

button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            Runnable r = new Runnable() {

                public void run() {
                    //Process to search for files
                }
            };
            Thread t = new Thread(r);
            t.start();
        }
    });

Please help me, I don't have experience with the JProgressBar.

1) Read the tutorial on using JProgressBars. 2) Read the tutorial on use of SwingWorker. 3) Combine concepts and have at it. Google can help you find the appropriate oracle tutorials. I think that the SwingWorker one is called "Concurrency in Swing" so have a look for that as it is well worth your while to understand these concepts. — Hovercraft Full Of Eels, Mar 11 '13 at 22:08
Ok, thanks, it's really good to know where to start! I'll try it! — igarcia, Mar 11 '13 at 22:15

score 2 · Accepted Answer · answered Mar 13 '13 at 12:27

After reading some tutorials to make the progress bar work, I've implemented the next solution with an indeterminated progress bar:

button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            Runnable r = new Runnable() {

                public void run() {
                        progressBar.setIndeterminate(true);
                        progressBar.setVisible(true);
                        progressBar.setStringPainted(true);
                        progressBar.setString("Searching..");

                    //Process to search for files

                        progressBar.setIndeterminate(false);
                        progressBar.setString("Completed Search");

                }
            };
            Thread t = new Thread(r);
            t.start();
        }
    });

Displaying the progress of a thread in percent number with a JProgressBar

1 Answers1