public ArrayList<String> createUsernameArrayList() {
		ArrayList<String> usernames = new ArrayList<String>();
		ResultSet rs = null;
		PreparedStatement statement = null;
		
		try {
			statement = conn.prepareStatement("select Username from Accounts");	
			rs = statement.executeQuery();

			while (rs.next()) {
				usernames.add(rs.getString("Username"));
			}	
		} catch(SQLException e){
			e.printStackTrace();
		} finally {
			try { if (rs != null) rs.close(); } catch (Exception e) {}
			try { if (statement != null) statement.close(); } catch (Exception e) {}
		}
		
		return usernames;
	}