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copied!<blockquote> <p>But the <code>JTable</code> stays empty; not even plain text is displayed.</p> </blockquote> <p>You need a renderer that corresponds to your editor, as suggested in this <a href="http://sites.google.com/site/drjohnbmatthews/table" rel="nofollow noreferrer">example</a> that contains both a <code>ValueRenderer</code> <em>and</em> a <code>ValueEditor</code>.</p> <blockquote> <p>I just need to put a <code>JComboBox</code> in some cells of the <code>JTable</code>:</p> </blockquote> <p>As discussed in <a href="http://download.oracle.com/javase/tutorial/uiswing/components/table.html#editrender" rel="nofollow noreferrer"><em>How to Use Tables: Concepts: Editors and Renderers</em></a>, "a single <em>cell renderer</em> is generally used to draw all of the cells that contain the same type of data."</p> <blockquote> <p>I specified both row and column, but nothing is happening</p> </blockquote> <p>Your code appears to work when I add the new <code>JTable</code> to a container.</p> <p><img src="https://i.stack.imgur.com/lYIWF.png" alt="TableTest"></p> <pre><code>import java.awt.Dimension; import java.awt.EventQueue; import javax.swing.DefaultCellEditor; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableCellEditor; /** @see http://stackoverflow.com/questions/7200500 */ public class TableTest extends JPanel { public TableTest() { this.setPreferredSize(new Dimension(320, 240)); final JComboBox myEditor = new JComboBox( new String[]{"yes", "no", "maybe"}); String[][] data = new String[10][4]; data[0][0] = "0,0"; data[0][5] = "0,1"; data[1][0] = "1,0"; data[1][6] = "1,1"; data[2][0] = "2,0"; data[2][7] = "2,1"; String[] columnNames = {"Nom", "Valeur"}; DefaultTableModel model = new DefaultTableModel(data, columnNames); JTable table = new JTable(model) { DefaultCellEditor myCellEditor = new DefaultCellEditor(myEditor); @Override public TableCellEditor getCellEditor(int row, int column) { int modelColumn = convertColumnIndexToModel(column); int modelRow = convertRowIndexToModel(row); if (modelColumn == 1 && modelRow == 1) { return myCellEditor; } else { return super.getCellEditor(row, column); } } }; this.add(table); } private void display() { JFrame f = new JFrame("TableTest"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.add(this); f.pack(); f.setLocationRelativeTo(null); f.setVisible(true); } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { new TableTest().display(); } }); } } </code></pre>

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