23.11 Multithreading with GUI: SwingWorker
Swing applications present a unique set of challenges for multithreaded programming. All Swing applications have a single thread, called the event dispatch thread, to handle interactions with the application’s GUI components. Typical interactions include updating GUI components or processing user actions such as mouse clicks. All tasks that require interaction with an application’s GUI are placed in an event queue and are executed sequentially by the event dispatch thread.
Swing GUI components are not thread safe—they cannot be manipulated by multiple threads without the risk of incorrect results that might corrupt the GUI. Unlike the other examples presented in this chapter, thread safety in GUI applications ...
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