In this lesson: Play with a graphical API to make a ball bounce on the screen.
This course provides an overview of the Ada programming language. Through a set of small examples, you will have the opportunity to see, understand and experiment most of the capabilities of the language, and write small programs. Other courses will then dive into more details of each aspect. Note that as it is today, the overview set is not complete - new lessons will be added over time.
Sources: https://github.com/AdaCoreU/Courses/tree/master/lectures/01_Overview/02_A_Bouncing_Ball
