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Thanks. I'll read more about SwingWorker.

Just to be sure. My UI code (class ViewController_Graphics) is invoked as follows:



SwingUtilities.invokeLater(new Runnable() {
...

I am writing a program to solve Sudoku puzzles. My user interface is written in Swing.

When a user presses a "Solve" button, an ActionListener for this button is called. This ActionListener...