DB date insert jtable

try
{
String query = "SELECT * FROM tb_buyfish";
st = this.con.createStatement();
rs = st.executeQuery(query);
DefaultTableModel dtm = (DefaultTableModel) buyfish_tb.getModel();
dtm.setRowCount(0);
while(rs.next()){
String getfishname = rs.getString("fishname");
String getcolor= rs.getString("color");
String getsize= rs.getString("size");
String getqty = rs.getString("qty");
String getprice = rs.getString("price");
String gettotprice = rs.getString("totalprice");
String getdate = rs.getString("date");
//JOptionPane.showMessageDialog(null,getvehno);
dtm.insertRow(buyfish_tb.getRowCount(), new Object[]{getfishname , getcolor , getsize , getqty , getprice , gettotprice , getdate });
}
}
catch(Exception e)
{
JOptionPane.showMessageDialog(null,"buyfish table filling: " + e.getMessage());
}