From Rosetta Code
This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
AWT is a toolkit. It provides a system for creation and management of graphical user interface elements.
AWT or Abstract Windowing Toolkit is a graphics and windowing library made by Sun Microsystems for Java. It provides easily reproducible constructs for things like buttons, text areas, and menus. It also can handle GUI events and user events (keyboard, mouse, drag-and-drop). Layout managers are also available to aid GUI construction. It has been effectively replaced with Swing, which updated AWT's look and feel.