Richard Styner · Java Practice

Educational Technology · Programming Practice

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Classic programmed-learning exercises, refreshed for modern Java and presented in the current MrStyner.com portfolio style.

Java 25 LTS baselineModernized 2026Original URLs preserved

Modern Java noteThis archive has been refreshed for Java 25 LTS. Core language concepts remain useful, while outdated setup instructions and browser-era Java are labeled or replaced. Java 26 is the current feature release; Java 25 is used here as the stable teaching baseline.

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Answer:

Just once, at least that is how it should be.

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That buttons it up for this chapter. If one or two topics have not yet clicked, you may wish to review the following.

JButtons
The layout manager for a Container.
The FlowLayout manager
Listener objects.
The ActionListener for a JButton.
Registering an ActionListener.
The repaint() method
The content pane of a JFrame.
Changing the color of a JFrame's background.
Details of the actionPerformed() method.

The next chapter will discuss more about GUI components.

The next chapter is Chapter 59. Chapter 58 became obsolete with Java 1.4 and has been removed.

You have reached the end of the chapter.