garith is a game similar in spirit to BSD's "arithmetic" or TuxMath. The game asks you to perform a simple arithmetic operation within a certain time frame. It improves your skills by stressing the operations you get more frequently wrong or that longer to answer. The statistics are saved/restored across games, so that each game is tuned for your current arithmetic abilities.
Web4thejob is a Java framework for rapid development of data-centric Web applications. It is ideal for those who seek a component-based event-driven full-stack Web development framework capable of producing elegant desktop-style Web applications which can automate any business domain. The framework addresses the automation needs of business domains by introducing "joblets". A joblet is the equivalent of an app on a mobile platform. Similarly to mobile apps which can turn a cellular phone to a social meeting point, a game console, or TV set (i.e., the smartphone), joblets can turn Web4thejob into a Web application suitable for any business domain.
hyphenType is a commandline interface for Java. It turns raw arguments into Java objects, organizes return codes to the operating system, stops exceptions from going to the console, has beautiful --help, supports internationalization, handles input channels, and offers advanced unit testing. Additionally, hyphenType provides a tool to dynamically edit Java annotations and to load annotation properties from property files.
code2flow is an experimental script which sweeps through your project source code, looking for function definitions, then does another sweep, looking for where those functions are called. It connects the dots and presents you with a flowchart estimating the functional structure of your program. It is especially useful for untangling spaghetti code and getting new developers up to speed. code2flow is experimental and meant to provide a rough overview of the structure of simple projects. Source code which is just a little esoteric will break this. Even with normal code, there are many known limitations and many outright bugs.