Java Database Connectivity (JDBC)

Hi, im trying to delete a rec from Access from java code.

My SQL is: String query = "Delete from items where item_id='"+dbitem_id+"'";

Where dbitem_id is a Double variable.

Item_id in Access is a autonumber longinteger

Im getting [Microsoft][ODBC Microsoft Access Driver] Data type mismatch in criteria expression. when I run it.

Any idea how I can fix this?
thanks.
Jason