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POProblem with removing last row of JTable
 

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  1. POProblem with removing last row of JTable
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    <p>This is my first time asking here so forgive me if something isn't appropriate, and sorry if my English isn't very good.</p> <p>Well, to make it short, currently I'm developing a Java desktop app with Swing and I have a problem using table. I have rows with each row have a button to delete the row. Everything is okay (i can delete rows with no problem) until i try to delete the last row. The last row can be deleted but apparently there is an exception, something like this:</p> <pre><code>Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 4 &gt;= 4 at java.util.Vector.elementAt(Vector.java:427) at javax.swing.table.DefaultTableModel.setValueAt(DefaultTableModel.java:648) at javax.swing.JTable.setValueAt(JTable.java:2710) at javax.swing.JTable.editingStopped(JTable.java:4712) at javax.swing.AbstractCellEditor.fireEditingStopped(AbstractCellEditor.java:125) </code></pre> <p>From the stack trace, it seems that "4" is my previously deleted last row index, but i have no idea how to deal with this. I already search for solution but i still can't solve it. Note that there are still other rows when i delete the last row, and after that i can't delete the others rows. The same exception also resulted when i click the delete button.</p> <p>Oh. and I use removeRow() from DefaultTableModel to delete the row. Any help will be appreciated. Thanks.</p> <p><strong>EDIT</strong> These are the code I use.</p> <pre><code>public class ViewDetail extends JInternalFrame implements ActionListener { ... String column[] = { "Aaa", "Bbb", "Delete This"}; tableModel = new DefaultTableModel(); Object row[][] = new Object[size][column.length]; //fill the data from db int r = 0; for (int i = 0; i &lt; size; i++) { row[r][0] = ...; row[r][1] = ...; row[r][2] = "Delete"; r++; } tableModel.setDataVector(row, column); table = new JTable(tableModel); tableColumn = table.getColumn("Aaa"); tableColumn.setPreferredWidth(75); tableColumn = table.getColumn("Bbb"); tableColumn.setPreferredWidth(75); tableColumn = table.getColumn("Delete This"); tableColumn.setPreferredWidth(75); tableColumn.setCellRenderer(new ButtonRenderer()); tableColumn.setCellEditor(new ButtonEditor(new JCheckBox()); ... } public class ButtonRenderer extends JButton implements TableCellRenderer { public ButtonRenderer() { setOpaque(true); } public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (isSelected) { setForeground(table.getSelectionForeground()); setBackground(table.getSelectionBackground()); } else { setForeground(table.getForeground()); setBackground(UIManager.getColor("Button.background")); } setText((value == null) ? "" : value.toString()); return this; } } public class ButtonEditor extends DefaultCellEditor { protected JButton button; private String label; private boolean isPushed; private JTable table; public ButtonEditor(JCheckBox checkBox) { super(checkBox); button = new JButton(); button.setOpaque(true); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { fireEditingStopped(); } }); } public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) { if (isSelected) { button.setForeground(table.getSelectionForeground()); button.setBackground(table.getSelectionBackground()); } else { button.setForeground(table.getForeground()); button.setBackground(table.getBackground()); } label = (value == null) ? "" : value.toString(); button.setText(label); isPushed = true; this.table = table; return button; } public Object getCellEditorValue() { if (isPushed) { DefaultTableModel tableModel = (DefaultTableModel) table.getModel(); tableModel.removeRow(table.getSelectedRow()); } isPushed = false; return new String(label); } public boolean stopCellEditing() { isPushed = false; return super.stopCellEditing(); } protected void fireEditingStopped() { super.fireEditingStopped(); } } </code></pre>
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      1. POProblem with removing last row of JTable
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    1. COCan you post your code snippet that performs the deletion operation?
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      1. USMohamed Saligh
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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