The ETAI library (Extraction, Traits, Adaption, Implementation) contains several Active Annotations for Xtend.

Project #34 of Codecademy's Full Stack Engineer Career Path

Contains all the assignments of Software Engineering course (CSE308) offered in BUET.

C# learning about design patterns, in this example the factory methods and interfaces used to allow different objects to be created in the factory class depending on the parameters fed in.