@Override
			public void actionPerformed(ActionEvent arg0) {
				String burst = burstText.getText();
				String arrival = arrivalText.getText();
				String deadline = deadlineText.getText();
				
				int burstTime = -10, arrivalTime = -10, deadlineTime = -10;
				
				
				if(burst == null || burst.equals("") || burst.equals("0")) {
					notifyError();
				}
				else {
					burstTime = Integer.parseInt(burst);
				}
				
				if(arrival == null || arrival.equals("")) {
					notifyError();
				}
				else {
					arrivalTime = Integer.parseInt(arrival);
				}
				
				if(deadline == null || deadline.equals("")) {
					notifyError();
				}
				else {
					deadlineTime = Integer.parseInt(deadline);
				}
				
				if(burstTime > 0 && arrivalTime >= 0 && deadlineTime > 0) {
					notifyAdded();
					taskList.add(new Task(burstTime, arrivalTime, deadlineTime));
					burstText.setText("");
					arrivalText.setText("");
					deadlineText.setText("");
				}
				else if(burst.equals("0") || arrival.equals("0") || deadline.equals("0")){
					notifyWrongValues();
				}
				else {
					notifyError();
				}
				
			}