Directly enter edit mode of JTable cell

Question

Hi Everyone,
On my UI, i am showing editable JTable. When I click on table's row / cell, it selects the row. Fine.
But I want that it should directly enter edit mode of cell and the whole text is to be selected and highlighted and focussed.
Thus, user can directly type the new text.
Please suggest correct approach to handle this scenario.
Thanks in advance.
Girish Varde.

Answer 1

Here is my attempt at solving this problem:
**  For text selection you have two choices. Remove the "xxx" from either
**  editCellAt() or prepareEditor() method.
**  The difference is in how mouse double clicking works
**  To place a cell directly into edit mode, use the changeSelection() method.
**  Be aware this will generate a TableModelEvent every time you leave a cell.
**  You can also use either of the above text selection methods.
import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.table.*;
public class TableEditCell extends JFrame
     public TableEditCell()
          String[] columnNames = {"Number", "Letter"};
          Object[][] data = { {"1", "A"}, {"2", "B"}, {"3", "C"} };
          JTable table = new JTable(data, columnNames)
               //  Place cell in edit mode when it 'gains focus'
               public void xxxchangeSelection(
                    int row, int column, boolean toggle, boolean extend)
                    super.changeSelection(row, column, toggle, extend);
                    if (editCellAt(row, column))
                         getEditorComponent().requestFocusInWindow();
               //  Select the text when the cell starts editing
               //  a) text will be replaced when you start typing in a cell
               //  b) text will be selected when you use F2 to start editing
               //  c) text will be selected when double clicking to start editing
               public boolean xxxeditCellAt(int row, int column, EventObject e)
                    boolean result = super.editCellAt(row, column, e);
                    final Component editor = getEditorComponent();
                    if (editor != null && editor instanceof JTextComponent)
                         if (e == null)
                              ((JTextComponent)editor).selectAll();
                         else
                              SwingUtilities.invokeLater(new Runnable()
                                   public void run()
                                        ((JTextComponent)editor).selectAll();
                    return result;
               //  Select the text when the cell starts editing
               //  a) text will be replaced when you start typing in a cell
               //  b) text will be selected when you use F2 to start editing
               //  c) caret is placed at end of text when double clicking to start editing
               public Component xxxprepareEditor(
                    TableCellEditor editor, int row, int column)
                    Component c = super.prepareEditor(editor, row, column);
                    if (c instanceof JTextComponent)
                         ((JTextField)c).selectAll();
                    return c;
          JScrollPane scrollPane = new JScrollPane( table );
          getContentPane().add( scrollPane );
     public static void main(String[] args)
          TableEditCell frame = new TableEditCell();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setLocationRelativeTo( null );
          frame.setVisible(true);
}