Java gui not updating

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With a bit more googling, I came to understand what was going on: The Run the specified Runnable on the Java FX Application Thread at some unspecified time in the future.

This method, which may be called from any thread, will post the Runnable to an event queue and then return immediately to the caller. At first I was thrown by the behaviour, as at that stage I had no idea about threading in Java or Java FX.

You will learn about basic functions including start menu; the desktop; managing files, folders, and libraries.

Objects I changed Progress Thread to the following: class Progress Thread extends Thread Also I added the following method: public void update Progress(int value) My loop is now the following: for (int i = 0; i As i mentioned earlier, the updating of the gui must be done on the gui thread and the time consuming task must run in its own thread.

did not update at all, so all that could be seen was an empty board.

Using the print out, I could see that all moves were still being made, so the task and new thread code was making the moves as before, but these were now not being reflected in the UI at all.

For a desktop application, this top-level container is usually made using the JFrame class. You can place graphical components such as text boxes, labels and buttons directly into the JFrame, or they can be grouped in other containers depending on how complex the application GUI needs to be.

Indeed it through up this answer on Stack Overflow, which pointed to the Java FX docs page on Concurrency in Java FX, which states: The Java FX scene graph, which represents the graphical user interface of a Java FX application, is not thread-safe and can only be accessed and modified from the UI thread also known as the Java FX Application thread.It shows how to build an application out of a //Imports are listed in full to show what's being used //could just import javax.swing.* and * etc.. I have a JProgress Bar that will not update its value while running.Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.You need to do updates to gui components on the event dispatch thread.

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