please do this in arrays

Task Design a program to input, store, retrieve and update contacts information. Each contact should have a first name, a last name and an email address. In the beginning the program should ask the user to enter all the information for 20 contacts and store it. The program should offer the user an option to update the email for a given contact based on last name. This option should be offered for as long as the user wishes to continue. Finally, the program should present a list of all the contacts displaying their full information. Design your program using array of objects. Present clear formatted code with comments. Deliverables Submit your java code files on Blackboard. Include UML diagram of class Contact