Du kan använda följande kod:
JComboBox cmb = your-combo;
ResultSet rs = your-Result-set;
while(rs.next()) {
String result = rs.getString(1); // Retrieves the value of the designated column in the current row of this ResultSet object as a String
if (result != null) {
result = result.trim();
}
cmb.addItem(result);
}
rs.close();