AP CSA Party
Print the ID, first and last name and company of the attendee. If the tables are already assigned, it will also print the table and seat number.
Add an attendee, the ID will be automatically assigned. The program will ask for first name and last name, and company.
Assign the tables and seats, won't print anything automatically.
Only work after assigning tables, print the whole table as an ArrayList.
Print the company name and all the employees.