Want to add rows from database in custom table model

Question

Hello all,
I have written custom table model which has single blank row intially.
Once user clicks on button, i want to add more rows in custom table model and display them in JTable.
I have created JTable object as shown below.
Jtable patientTable = new JTable( new DiagnosticTableModel());
My custom tabel model is as shown below.
import javax.swing.table.AbstractTableModel;
public class DiagnosticTableModel extends AbstractTableModel
     private String[] columnNames = {
                     "Date",
                                          "Diagnosis",
                                          "Severity",
                                          "Medications"};
     private String[][] data = {
      public int getColumnCount()
         return columnNames.length;
      public int getRowCount()
           return data.length;
      public String getColumnName(int col)
         return columnNames[col];
      public Class getColumnClass(int col)
         return getValueAt(0, col).getClass();
      public Object getValueAt(int row, int col)
         return data[row][col];
      public boolean isCellEditable(int row, int col)
      return true;
      public void setValueAt(Object value, int row, int col)
         data[row][col] = value.toString();
         fireTableCellUpdated(row, col);
}Thanx a lot in advance.

Answer 1

I have written custom table model which has single blank row intially.Why did you write a custom TableModel? The DefaultTableModel will work fine and it has methods that allow you to dynamically add rows to the table.