How do I add lines of code to read all information from a file, put in an ArrayList, and display the ArrayList in its entirety in a JTextArea?

How do I add lines of code to read all information from a file, put in an ArrayList, and display the ArrayList in its entirety in a JTextArea? In my case, I have more than one arraylist. I need to list all the ships,persons,and docks from my file. Ships, persons, and docks have their own arraylist. Therefore, how do I add lines of code to display each arraylist?

My assignment is:

Project 2

Introduction - the SeaPort Project series

For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports.

Thanks.