Lesson: What's Next
Determine what Unit to proceed to next.
If you are using the EV3 platform, it is simple enough that you have learned enough Java to do some actual programming. You can skip to Unit 9 and start working on some EV3 example programs. As you proceed in the examples you may see Java concepts and constructs that are covered in Unit 8. After doing some of the examples you should return to Unit 8 and complete it as it covers topics that, while not needed to get started, likely will be needed as you write more serious robot programs. After completing Unit 8 and doing the examples you should also study Units 12 and 13 to learn still more about Java, enabling you to do more sophisticated robot programming.
If you are using the Tetrix or RoboRio platforms, you could skip to those Units and start working with the examples. However, you will quickly encounter concepts and constructs covered in Unit 8. If you can't resist starting to program and skip Unit 8, try to return to it as soon as possible, so you will know more about what you will be seeing in the example programs you will be working with. Units 12 and 13 should also be completed to give you a more complete picture of what you will be seeing in the examples and what you are likely to see if you look at the FIRST samples or code from other teams.