As simple as possible: Create an application Contacts.java. The class extends JFrame and has the following widgets: table, two text fields (name, phone number), and two buttons (Add, Save). The Contacts class will read a file to populate the contacts table. You will need two buttons: add and save. The user can add new contacts by typing the name and number in the text fields. The add button will add the new contact to the table, and the same button will save the lists to a file.