Qt is a comprehensive, object-oriented development framework that enables development of high-performance, cross-platform rich-client and server-side applications. When you implement a program with Qt, you can run it on the X Window System (Unix/X11), Apple Mac OS X, and Microsoft Windows NT/9x/2000/XP by simply compiling the source code for the platform you want. Qt is the basis for the KDE desktop environment, and is also used in numerous commercial applications such as Google Earth, Skype for Linux, and Adobe Photoshop Elements.
wxWidgets is a cross-platform C++ GUI library, offering classes for all common GUI controls as well as a comprehensive set of helper classes for most common application tasks, ranging from networking to HTML display and image manipulation. wxWidgets uses native widgets on all platforms whenever possible and fills missing gaps on some platforms using generic controls written with wxWidgets itself.
Java Tiny Gfx Library (JTGL) is a graphic foundation framework (a graphics/gaming API) that will allow easy deployment/porting of applications/games on many environments: AWT, Swing, J2ME (MIDP 1&2, Nokia, and Siemens), SuperWaba (PalmOS, PPC, and Symbian), ExEn, DoJa, and others.
Jodd is a Java utility library and set of frameworks. Jodd tools enrich the JDK with many powerful and feature rich utilities. It helps with everyday tasks, and makes code more robust and reliable. Jodd frameworks is set of lightweight application frameworks, compact yet powerful. Designed following the CoC, DRY, and SCS principles, it makes development simple, but not simpler; you get 90% of the features with 10% of the usual effort.
JChassis Dependency API is an API for representing resources and the dependencies between them. Resources are abstract, so what they represent is entirely up to the user of the API. In the simplest case, they contain a name and a version. For example, resources might represent versioned software components. This API is a subproject of the JChassis framework that has been packaged as a standalone library.
JChassis ANSI Terminal Controller is a Java API for controlling ANSI-compliant terminals and terminal emulators such a Linux virtual terminals, xterm, Gnome Terminal, and KDE Konsole. The library can be used to display character styles and colors and graphical characters in those environments. It is a repackaging of various JChassis modules into a standalone library that does not require the JChassis SDK or framework.
JChassis TermUI is an API for simple GUI-like user interfaces on ANSI/VT100-compliant terminals and terminal emulators, such as Linux virtual terminals, GNOME Terminal, and KDE Konsole. The intent is similar to that of the ncurses library, but done in pure Java. Several commonly used widgets are available.