Event.java

public class Event implements Comparable<Event> {
	private String EventTitle, Location, ContactName;
	private String DataAndTime;
	private Contact Contact_inv;

	public Event(String eventTitle, String dateAndTime, String location, Contact Contact_inv) {
		this.EventTitle = eventTitle;
		this.DataAndTime = dateAndTime;
		this.Location = location;
		this.Contact_inv = Contact_inv;
		ContactName = Contact_inv.getContactName();
	}

	public String getEventTitle() {
		return EventTitle;
	}

	public void setEventTitle(String eventTitle) {
		EventTitle = eventTitle;
	}

	public String getDataAndTime() {
		return DataAndTime;
	}

	public void setDataAndTime(String dataAndTime) {
		DataAndTime = dataAndTime;
	}

	public String getLocation() {
		return Location;
	}

	public void setLocation(String location) {
		Location = location;
	}

	public String getContactName() {
		return ContactName;
	}

	public void setContactName(String contactName) {
		ContactName = contactName;
	}

	public Contact getContact_inv() {
		return Contact_inv;
	}

	public void setContact_inv(Contact Contact_inv) {
		this.Contact_inv = Contact_inv;
	}

	@Override
	public int compareTo(Event other) {
		return this.EventTitle.compareTo(other.getEventTitle());
	}
	
	public String toString() {  
        String str = "\nEvent title: " + EventTitle +  
		              "\nContacts names:   " +ContactName+
                    "\nEvent date and time (MM/DD/YYYY HH:MM): " + DataAndTime +  
                   "\nEvent location: " + Location + "\n" ;
		return str;			     
    }
}