private void readFile()
	{
		ObjectInputStream impt = null;
		try
		{
			impt = new ObjectInputStream(new FileInputStream(".contacts.txt"));
			this.IDgenerator = (AtomicInteger) impt.readObject();
			this.contactList = (HashSet<Contact>) impt.readObject();
			this.meetingList = (HashSet<Meeting>) impt.readObject();
		}catch(FileNotFoundException ex){
			this.IDgenerator = new AtomicInteger();
			this.contactList = new HashSet<Contact>();
			this.meetingList = new HashSet<Meeting>();
		}catch(ClassNotFoundException ex){
			ex.printStackTrace();
		}catch(IOException ex){
			ex.printStackTrace();
		}finally{
			try
			{
				impt.close();
			}catch(IOException ex){
				ex.printStackTrace();
			}
		}
	}