Object-oriented programming in JShell

In this recipe, we will make use of predefined Java class definition files and import them into JShell. Then, we will play around with those classes in JShell.

How to do it...

1. The class definition files we will use in this recipe are available in Chapter12/4_oo_programming, in the code downloads for this book.
2. There are three class definition files: Engine.java, Dimensions.java, and Car.java.
3. Navigate to the directory where these three class definition files are available.
4. The /open command allows us to load the code from within a file.
5. Load the Engine class definition and create an Engine object:

6. Load the Dimensions class definition and create a Dimensions object:

7. Load the Car...