I'm gonna go ahead and assume you mean "Jade code".
JADE is an object oriented software development and deployment platform. It has its own programming language that exhibits a seamlessly integrated
application server and object-oriented database management system.
It is designed to be an end-to-end development environment, which allows systems to be coded in one language from the database serer to the clients.
As a programming language, its main competitors are Java and C#, while as a database it competes with other object-oriented database and post-relational databases such as Caché and Matisse as well as traditional relational database software packages such as Oracle and Microsoft SQL Server.
Usage of the JADE platform requires per-process fees to be paid. A free limited license is available for development.