Added processing for respective user commands in EventCommand subclasses AddEventCommand, DeleteEventCommand, ListCalendarEventsCommand and UnknownCommand

Author: Cheezeblokz

src/main/java/seedu/duke/calendar/command/AddEventCommand.java

@@ -1,5 +1,21 @@
 package seedu.duke.calendar.command;
 
+import seedu.duke.calendar.Calendar;
+
+import java.time.LocalDateTime;
+import java.util.Scanner;
+
 public class AddEventCommand extends EventCommand{
+    public void execute(Scanner scanner, Calendar calendar) {
+        System.out.print("Enter the event name: ");
+        String eventName = scanner.nextLine();
+        System.out.print("Enter the event from date (yyyy-mm-ddThh:mm:ss) (eg. 2023-12-20T12:30:30): ");
+        LocalDateTime eventFrom = LocalDateTime.parse(scanner.nextLine());
+        System.out.print("Enter the event to date (yyyy-mm-ddThh:mm:ss) (eg. 2023-12-20T12:30:30): ");
+        LocalDateTime eventTo = LocalDateTime.parse(scanner.nextLine());
+
+        calendar.addEvent(eventName, eventFrom, eventTo);
 
+        System.out.println("Success! Event has been added to your Calendar!");
+    }
 }

src/main/java/seedu/duke/calendar/command/DeleteEventCommand.java

@@ -1,4 +1,17 @@
 package seedu.duke.calendar.command;
 
+import seedu.duke.calendar.Calendar;
+
+import java.time.LocalDateTime;
+import java.util.Scanner;
+
 public class DeleteEventCommand extends EventCommand{
+    public void execute(Scanner scanner, Calendar calendar) {
+        System.out.print("Enter the event name: ");
+        String eventName = scanner.nextLine();
+
+        calendar.delEvent(eventName);
+
+        System.out.println("Event has been deleted from your Calendar!");
+    }
 }

src/main/java/seedu/duke/calendar/command/ListCalendarEventsCommand.java

@@ -1,4 +1,11 @@
 package seedu.duke.calendar.command;
 
+import seedu.duke.calendar.Calendar;
+
+import java.util.Scanner;
+
 public class ListCalendarEventsCommand extends EventCommand{
+    public void execute(Scanner scanner, Calendar calendar) {
+        calendar.listEvents();
+    }
 }

src/main/java/seedu/duke/calendar/command/UnknownCommand.java

@@ -1,4 +1,11 @@
 package seedu.duke.calendar.command;
 
+import seedu.duke.calendar.Calendar;
+
+import java.util.Scanner;
+
 public class UnknownCommand extends EventCommand{
+    public void execute(Scanner scanner, Calendar calendar) {
+        System.out.println("Unknown command!");
+    }
 }