Implementing Project 7 - File I/O Sample Results Note: Except for the menu changes noted below, output should not change from Project 5. However, saving the contact book, exiting the program, restarting the program, and then loading the contact book should result in all data being restored. Steps 1. Make a copy of your Project 5 NetBeans project or the one provided by the instructor. If using the instructor's version be sure to rename the package to match your LCC username. 2. Create the "ContactFileManager" class using your UML class diagram and the design requirements as a guide. 3. Modify the existing Contact and ContactBook classes according to the changed made to your class diagram... a. Contact must implement Serializable. b. ContactBook must include the two new methods. 4. Modify the existing ContactApp class to add two new options to the menu. It should now match the sample below and function appropriately, asking the user for a file name whenever they choose to save or load the contact book. 5. Remember to create file, class, and method header comments which adhere to the course Programming Standards document. 6. Prepare your project for submission. Refer to the steps from Project 1 or the "Submitting Your Project" video. 1) List All Contacts 2) Add a Contact 3) Update a Contact 4) Remove a Contact 5) Save Contact Book 6) Load Contact Book 7) Exit