10.3. Setting up the Environment

Learn by Experimenting!

For each of the remaining sections in this chapter, be sure to log in to Odin and type out the commands given in each part, taking notes as needed. When you are done, you will have a step-by-step outline for creating and using interfaces in Java. Your notes will be very useful for upcoming homework assignments and projects. The steps in this tutorial assume that you are logged into the Odin server.

As you work through this chapter, you will write code to properly utilize generics in Java.

On Odin, complete each of the following steps:

  1. Use the following command to download and execute a shell script that retrieves the starter code for this tutorial and places it into a subdirectory called cs1302-generic-classes:

    curl -s -L https://git.io/Je3Dh | bash

  2. Change into the cs1302-generic-classes directory that was just created and look around. There should be multiple Java files contained within the directory structure. To see a listing of all of the source code files, use the tree command as follows:

    tree src

    You should see output similar to the following:

    Starter Code - Output of the tree command

    Each subdirectory and file within cs1302-generic-classes plays a role in the example. Here is a breakdown of these roles:

    • src is the default (no-name) package directory for our source code for the shipping container example.

    • cs1302 and generics are the named package directories for each example.

    • The Camera.java and Drone.java files correspond to the UML Class Diagrams you saw in the chapter introduction.

    • The Driver.java file contains a main method and will be used to test some code related to generics.