THIS IS THE PARTIAL CODE I MENTIONED IN MY PREVIOUS QUESTION is : import java.time.LocalDate; import java.time.LocalTime; /** * A thing that you want to do. * * @author Chad Hogg and Jeremy Foxx */ public abstract class Event { // Class invariants: // 1: startTime is before endTime /** The name of the event. */ private String eventName; /** The time when the event starts. */ private LocalTime startTime; /** The time when the event ends. */ private LocalTime endTime; /** * Constructs a new event. * * @param eventName The name of the new event. * @param startTime The time when the new event starts. * @param endTime The time when the new event ends. This must be after startTime. */ public Event(String eventName, LocalTime startTime, LocalTime endTime) { // TODO: Implement. } /** * Gets the name of the event. * * @return The name of the event. */ public String getEventName() { return null; // TODO: Implement. } /** * Gets the time when the event starts. * * @return The time when the event starts. */ public LocalTime getStartTime() { return null; // TODO: Implement. } /** * Gets the time when the event ends. * * @return The time when the event ends. */ public LocalTime getEndTime() { return null; // TODO: Implement. } /** * Determines whether or not the event occurs on a given day. * * @param when The day it might occur on. * @return True if the event occurs on that day, or false otherwise. */ public abstract boolean isOnDay(LocalDate when); }

The code to test that is: import java.util.*; import java.util.ArrayList; import java.time.*; import java.time.LocalTime; /** * A program that lets you manage your event calendar. * * @author Chad Hogg */ public class CalendarProgram { /** * Runs the program. * * @param args Not used. */ public static void main(String[] args) { Scanner console = new Scanner(System.in); ArrayList allEvents = new ArrayList(); String menuSelection = getMainMenuSelection(console); while(!menuSelection.equals("quit")) { if(menuSelection.equals("add")) { Event newEvent = makeNewEvent(console); addEvent(allEvents, newEvent); } else if(menuSelection.equals("load")) { ArrayList myEvents = new ArrayList<>(); myEvents.add(new WeeklyEvent("CSCI162-50A", LocalDate.of(2020, 8, 24), 15, LocalTime.of(10, 0), LocalTime.of(10, 50))); myEvents.add(new WeeklyEvent("CSCI162-50A", LocalDate.of(2020, 8, 28), 15, LocalTime.of(10, 0), LocalTime.of(10, 50))); myEvents.add(new WeeklyEvent("CSCI162-50A", LocalDate.of(2020, 8, 25), 15, LocalTime.of(10, 0), LocalTime.of(11, 50))); myEvents.add(new WeeklyEvent("CSCI162-50B", LocalDate.of(2020, 8, 24), 15, LocalTime.of(11, 0), LocalTime.of(11, 50))); myEvents.add(new WeeklyEvent("CSCI162-50B", LocalDate.of(2020, 8, 28), 15, LocalTime.of(11, 0), LocalTime.of(11, 50))); myEvents.add(new WeeklyEvent("CSIC162-50B", LocalDate.of(2020, 8, 26), 15, LocalTime.of(10, 0), LocalTime.of(11, 50))); myEvents.add(new WeeklyEvent("CSCI375-50A", LocalDate.of(2020, 8, 24), 15, LocalTime.of(13, 0), LocalTime.of(13, 50))); myEvents.add(new WeeklyEvent("CSCI375-50A", LocalDate.of(2020, 8, 28), 15, LocalTime.of(13, 0), LocalTime.of(13, 50))); myEvents.add(new WeeklyEvent("CSCI375-50A", LocalDate.of(2020, 8, 25), 15, LocalTime.of(13, 10), LocalTime.of(15, 0))); myEvents.add(new WeeklyEvent("Office Hours", LocalDate.of(2020, 8, 24), 15, LocalTime.of(15, 0), LocalTime.of(16, 50))); myEvents.add(new WeeklyEvent("Office Hours", LocalDate.of(2020, 8, 26), 15, LocalTime.of(12, 0), LocalTime.of(13, 50))); myEvents.add(new WeeklyEvent("Office Hours", LocalDate.of(2020, 8, 28), 15, LocalTime.of(14, 0), LocalTime.of(14, 50))); myEvents.add(new WeeklyEvent("Department Meeting", LocalDate.of(2020, 8, 26), 15, LocalTime.of(15, 0), LocalTime.of(16, 30))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 9, 3), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 9, 17), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 10, 1), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 10, 15), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 11, 5), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 11, 19), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new OneTimeEvent("Academic Policies Meeting", LocalDate.of(2020, 12, 3), LocalTime.of(16, 0), LocalTime.of(16, 50))); myEvents.add(new MonthlyEvent("Meet With Mentor", LocalDate.of(2020, 9, 1), 4, LocalTime.of(18, 0), LocalTime.of(18, 30))); for(Event event : myEvents) { addEvent(allEvents, event); } } else if(menuSelection.equals("view")) { LocalDate date = getDate("View ", console); System.out.println("Your schedule for " + date + " includes:"); int count = 0; for(Event event : allEvents) { if(event.isOnDay(date)) { System.out.println("\t" + event); count++; } } if(count == 0) { System.out.println("\tnothing at all!"); } } menuSelection = getMainMenuSelection(console); } System.out.println("Have a good day!"); } /** * Gets the name of a new event. * * @param console A Scanner connected to the keyboard. * @return The name the user typed in. */ private static String getNewEventName(Scanner console) { System.out.print("Event name: "); // Dummy read console.nextLine(); return console.nextLine(); } /** * Gets the user's menu selection. * * @param console A Scanner connected to the keyboard. * @return One of the words "add", "view", or "quit". */ private static String getMainMenuSelection(Scanner console) { System.out.println(); System.out.println("add (a new event)"); System.out.println("load (a subset of Dr. Hogg's Fall 2020 calendar)"); System.out.println("view (the events for a day)"); System.out.println("quit (the program)"); System.out.print("Your choice: "); String answer = console.next().toLowerCase(); while(!answer.equals("add") && !answer.equals("load") && !answer.equals("view") && !answer.equals("quit")) { System.out.println("That is not a valid response."); System.out.print("Your choice: "); answer = console.next().toLowerCase(); } return answer; } /** * Reads information about an event from the user. * * @param console A Scanner connected to the console. * @return The new event the user created. */ private static Event makeNewEvent(Scanner console) { Event newEvent = null; String name = getNewEventName(console); while(newEvent == null) { System.out.print("Type: (once, monthly, or weekly): "); String type = console.next().toLowerCase(); if(type.equals("once")) { LocalDate date = getDate("Single", console); LocalTime startTime = getTime("Start", console); LocalTime endTime = getTime("End", console); newEvent = new OneTimeEvent(name, date, startTime, endTime); } else if(type.equals("monthly")) { LocalDate first = getDate("First", console); System.out.print("Repetitions (0 for infinite): "); int repetitions = console.nextInt(); LocalTime startTime = getTime("Start", console); LocalTime endTime = getTime("End", console); newEvent = new MonthlyEvent(name, first, repetitions, startTime, endTime); } else if(type.equals("weekly")) { LocalDate first = getDate("First", console); System.out.print("Repetitions (0 for infinite): "); int repetitions = console.nextInt(); LocalTime startTime = getTime("Start", console); LocalTime endTime = getTime("End", console); newEvent = new WeeklyEvent(name, first, repetitions, startTime, endTime); } else { System.out.println("I am sorry, but that is not a type of event."); } } return newEvent; } /** * Reads information about a date from the keyboard. * * @param description A description of the requested date. * @param console A Scanner connected to the keyboard. * @return The user's chosen date. */ private static LocalDate getDate(String description, Scanner console) { System.out.print(description + " date year: "); int year = console.nextInt(); System.out.print(description + " date month (1-12): "); int month = console.nextInt(); System.out.print(description + " date day (1-31): "); int day = console.nextInt(); return LocalDate.of(year, month, day); } /** * Reads information about a time from the keyboard. * * @param description A description of the requested time. * @param console The Scanner connected to the keyboard. * @return The user's chosen time (hour+minute resolution). */ private static LocalTime getTime(String description, Scanner console) { System.out.print(description + " time hour: "); int hour = console.nextInt(); System.out.print(description + " time minute: "); int minute = console.nextInt(); return LocalTime.of(hour, minute); } /** * Adds an event to the calendar, if it did not already exist. * * @param events A collection of events. * @param event A new event to add. * @postcondition If the collection did not already contain the event, it has been added. */ private static void addEvent(ArrayList events, Event event) { if(events.contains(event)) { System.out.println(event + " was already on your calendar!"); } else { events.add(event); System.out.println("Added " + event); } } }