public boolean addEvent(int year, int month, int day, 
			 int hour, int minute, int duration, String what){	 
	int index = CalenderEvent.indexOf(CalenderEvent);
		return index != 0;
			} 
	 public CalenderEvent findNextEvent(int year, int month, int day, 
			 int hour, int minute){
		 if(CalenderEvent != CalenderEvent)
 
				return null;
		return null;	 
			} 
	 public boolean removeEvent(int id) {
		 if(id==id)
		return true;
		return f

public boolean addEvent(int year, int month, int day, 
			 int hour, int minute, int duration, String what){	 
	int index = CalenderEvent.indexOf(CalenderEvent);
		return index != 0;
			}

int index = CalenderEvent.indexOf(new CalenderEvent(year, month, day, hour, minute, duration, what));

final public class CalenderEvent implements Comparable<Object> {
	private static int count = 0;
	final private  Date Date;
	final private  Time startTime;
	private  int duration;
	final private  String what;
	final private  String where;
	final private  String description;
	final private  int id;
	final private  boolean valid;
 
	public CalenderEvent(int year, int month, int day, 
			int hour, int minute, int duration, String what){
		count++;
	Date = new Date(month, day, year);
    startTime = new Time(hour, minute);
    this.duration= minute;
    this.what = what;
    this.where = toString();
    this.description = toString();
    this.id = count;
    this.valid=isValid(0, 0, 0);
 
	}
	public static int getCount() { 
	      return count; 
 
 
	}
	 public Time getEndTime(int duration) {
		 this.duration=this.duration+duration;
			if(this.duration>=60)
			{
			CalenderEvent.count=this.count+(this.duration/60);
			this.duration=this.duration%60;
			}
			return startTime ;
	}
 
 
	public Date getDate() {
		return Date;
	}
	public Time getStartTime() {
		return startTime;
	}
	public int getDuration() {
		return duration;
	}
	public String getWhat() {
		return what;
	}
	public String getWhere() {
		return where;
	}
	public String getDescription() {
		return description;
	}
	public int getId() {
		return id;
	}
	public boolean isValid(int Date, int startTime, int duration) {
		if (Date > Date || Date < Date)     
			return false;
        if (startTime < startTime || startTime > startTime) 
        	return false;
        if (duration < 0 || duration > 60) 
        	return false;
 
		return true;
	}
	public int compareTo(Object obj) {
		CalenderEvent otherObj = (CalenderEvent)obj;
		double result = getDate() - getStartTime() ;
		if (result > 0)
	         return 1;
	      else if (result < 0)
	         return -1;
	      return 0;
 
	}
 
	public String toString(){
		if(isValid(duration, duration, duration) == true) {
		return what+ " on "+Date+" at "+startTime+" for "+duration;}
   else return what+ " on "+Date+" at "+startTime+" for "+duration +" is not valid";
	}
 
 
 
}