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.
Historical topic: Java appletsModern web browsers do not run Java applets. The Applet API was deprecated for removal before Java 25 and was removed in Java 26. Treat applet examples on this page as historical object-oriented/GUI examples; for new desktop interfaces use Swing where appropriate or JavaFX/OpenJFX.
Answer:
Only three: blue, green, and red.
Pictures like this usually look best when colors are selected
randomly from just a few choices.
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