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PaintApp and ClockApplet are graphics-only applets. Sure, lines, rectangles, and polygons—and colors—can produce visually stunning applets, but sooner or later, you'll want to use text. "Sooner" sounds fine (right?), so our next applet is going to be a rather simple, customizable scrolling text marquee. The messages that scroll by can be clicked on to jump to pages elsewhere on the World Wide Web.
Here is a demonstration of Marquee:
| 1 | The Applet Skeleton Applet initialization, thread functions, mouse events, color fields |
| 2 | Fonts Font parameters, font metrics terms, finding characters in strings |
| 3 | Drawing the Error Message Drawing centered text |
| 4 | Message Initialization Declaring custom classes, message parameters, string comparison |
| 5 | Marquee's Messages The break and continue keywords, scrolling messages |
| 6 | Hyperlinks The applet context, displaying a URL in the browser |
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Marquee Listing Marquee Test Page |