A Waiter relays an order Object to a Producer, waits in an independent thread during the production, and then delivers the result using a Consumer callback method.
Conservator extends on the concept of a Flyweight Factory by allowing shared Flyweight objects to be mutated after creation without undesired side effects.
Java Clock is a FREE Java applet used to display a clock on your Web pages. You can display either analog or digital clock. The full source code of this applet is also available (visit my home page to download it). You may use this applet on your Web pages WITHOUT paying me fee or royalty as long as credit is given (a link to my home page is enough).
A windows BMP file is a common image format that Java does not handle. While BMP images are used only on windows machines, they are reasonably common. Reading these shows how to read complex structures in Java and how to alter they byte order from the big endian order used by Java to the little endian order used by the windows and the intel processor.