custom queries (where clause) in JavaDB programs

[js5278]

I have written a desktop database application that stores information that contains a date field. I worked up to it by doing the tutorial "Creating a Custom Java Desktop Database Application". The "master table" (JTable) of this GUI always shows all of the records in the main database table. I'd like to filter the output and show only query results in the table. For example, show only the records that correspond to a particular year.
From what I can understand. The master JTable is bound to a query result list. I'm just not understanding how to have the query result list be the result of a WHERE clause of my choosing.