Create two classes: Laywers and Politicians. Put in the stuff like name, id, netWorth, age, etc, whatever you think you need.
Create two data files, one for Lawyers and one for Politicians. Populate the data file with 8 or more lines of data that matches your class formats.
Create a Driver class. In this class read in the the two data files and create a laywer list and a politician list.
Print out the contents of both lists. Note, it SHOULD match the contents of your data file.
Process the list in some way that makes sense. For example, give all the lawyers a raise (increase their netWorth) or make all politicians 10 years older.