使用数据库刷新jcombo box java中的内容

Is it possible to have content refresh in one combo box after selecting an item in the first combo box. The items in the first combo box would be the types and the second combo box would have that items sub types. In addition, this would have to happen on one frame. The data in the combo box would be read from a database. The types would be a column in the database and so would the sub-types. The database i am using is MYSQL.Is it possible to have content refresh in one c