public boolean storeMessage(String sender, String receiver, String message){
		PreparedStatement st;
		Integer rs;
		String query;
		query="INSERT INTO messages(sender,receiver,message) VALUES('"+sender+"','"+receiver+"','"+message+"')";
		try {
			st = conn.prepareStatement(query);
			rs = st.executeUpdate();
			st.close();
		} catch (SQLException e) {
			System.out.println(e.getMessage());
		}
		return true;
	}