Event.java

import java.io.Serializable;
import java.util.*;


public abstract class Event implements Serializable{
	protected Date date;
	protected String firstFiller;
	protected String secondFiller;
	protected String on=" on ";
	protected ArrayList<String> sentence=new ArrayList<String>();
	
	Event(){
		//Should be called to set the date
		date=Calendar.getInstance().getTime();
		/*//Should never be called here
		System.out.println("You called the event superclass constructor");
		createSentence();*/
	}

	// Creates the sentence to be stores until retrieved
	// priority and comment events use given priorities and comments
	// respectively to create these sentences
	public abstract ArrayList<String> createSentence();
	
	public abstract int getStringType(int index);

	// another way to get the sentence
	public ArrayList getSentence() {
		return sentence;
	}

	public Date getDate() {
		return date;
	}
	
	public void setDate(Date dddate) {
		date = dddate;
	}

	// Returns the type of event it is
	// Either the String "Comment" or "Priority"
	// Corresponding to the type of event of course
	public abstract String getType();

	// Will return the new and old comment if
	// it contains a commentEvent. If not, then returns null.
	// please check what type of event it is using getType
	// before calling either of these two methods
	public abstract String getOldComment();
	public abstract String getNewComment();
	
	public static String convertMonth(int num) {
		String month;
		if(num == 0) {
			month = "January";
		}
		else if(num ==1) {
			month = "February";
		}
		else if(num ==2) {
			month = "March";
		}
		else if(num ==3) {
			month = "April";
		}
		else if(num ==4) {
			month = "May";
		}
		else if(num ==5) {
			month = "June";
		}
		else if(num ==6) {
			month = "July";
		}
		else if(num ==7) {
			month = "August";
		}
		else if(num ==8) {
			month = "September";
		}
		else if(num ==9) {
			month = "October";
		}
		else if(num ==10) {
			month = "November";
		}
		else{
			month = "December";
		}
		return month;
	}
	
	public static String convertDay(int num) {
		String day;
		if(num == 0) {
			day = "Sunday";
		}
		else if(num ==1) {
			day = "Monday";
		}
		else if(num ==2) {
			day = "Tuesday";
		}
		else if(num ==3) {
			day = "Wednesday";
		}
		else if(num ==4) {
			day = "Thursday";
		}
		else if(num ==5) {
			day = "Friday";
		}
		else{
			day = "Saturday";
		}
		return day;
	}
	
	public static String getDateString(Date date) {
		String dateString=Event.convertDay(date.getDay())+" "+Event.convertMonth(date.getMonth())
		+" "+date.getDate()+", "+(1900+date.getYear());
		return dateString;
	}
	
	public abstract void setComment(String newcomment);
	
	public abstract void editComment(HistoryPage h);
}