Problem of deletion of rows in jtable, table refreshing too

Question

Hi,
I have a table with empty rows in the beginning with some custom properties( columns have fixed width...), later user would be adding to the rows to this table and can delete, I've a problem while deleting the rows from table,
When a selected row is deleted the model is also deleting the data but the table(view) is not refreshed.
Actually i'm selecting a cell of a row, then hitting the delete button.
So the model is deleting the information, but i'm not able to c the fresh data in table( especially when the last cell of last row is selectd and hit the delete button, i am getting lots of exception)
Kindly copy the below code and execute it, and let me know,
* AuditPanel.java
* Created on August 30, 2002, 3:05 AM
import javax.swing.*;
import java.awt.*;
import javax.swing.table.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.util.Vector;
* @author yaman
public class AuditPanel extends javax.swing.JPanel {
// These are the combobox values
private String[] acceptenceOptions;
private Vector colNames;
private Color rowSelectionBackground = Color.yellow;
private int rowHeight = 20;
private int column0Width =70;
private int column1Width =96;
private int column2Width =327;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
/** Creates new form AuditPanel */
public AuditPanel() {
public void renderPanel(){
initComponents();
public String[] getAcceptenceOptions(){
return acceptenceOptions;
public void setAcceptenceOptions(String[] acceptenceOptions){
this.acceptenceOptions = acceptenceOptions;
public Vector getColumnNames(){
return colNames;
public void setColumnNames(Vector colNames){
this.colNames = colNames;
public Vector getData(){
Vector dataVector = new Vector();
/*dataVector.add(null);
dataVector.add(null);
dataVector.add(null);
return dataVector;
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
jPanel2 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jPanel1 = new javax.swing.JPanel();
jTable1 = new javax.swing.JTable();
setLayout(new java.awt.GridBagLayout());
setBorder(new javax.swing.border.EmptyBorder(0,0,0,0));
jPanel2.setLayout(new java.awt.GridBagLayout());
jPanel2.setBorder(new javax.swing.border.EmptyBorder(0,0,0,0));
jButton1.setText("Add");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.ipadx = 8;
gridBagConstraints.insets = new java.awt.Insets(0, 1, 5, 0);
gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
jPanel2.add(jButton1, gridBagConstraints);
jButton2.setText("Delete");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 1;
gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
jPanel2.add(jButton2, gridBagConstraints);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 2;
gridBagConstraints.gridy = 0;
gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 0);
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
add(jPanel2, gridBagConstraints);
jPanel1.setLayout(new java.awt.GridBagLayout());
jPanel1.setBorder(new javax.swing.border.BevelBorder(javax.swing.border.BevelBorder.LOWERED, Color.black, Color.gray) );
jTable1.setModel(new javax.swing.table.DefaultTableModel(getData(), getColumnNames()));
// get all the columns and set the column required properties
java.util.Enumeration enum = jTable1.getColumnModel().getColumns();
while (enum.hasMoreElements()) {
TableColumn column = (TableColumn)enum.nextElement();
if( column.getModelIndex() == 0 ) {
column.setPreferredWidth(column0Width);
column.setCellEditor( new ValidateCellDataEditor(true) );
if( column.getModelIndex() == 1) {
column.setPreferredWidth(column1Width);
column.setCellEditor(new AcceptenceComboBoxEditor(getAcceptenceOptions()));
// If the cell should appear like a combobox in its
// non-editing state, also set the combobox renderer
//column.setCellRenderer(new AcceptenceComboBoxRenderer(getAcceptenceOptions()));
if( column.getModelIndex() == 2 ) {
column.setPreferredWidth(column2Width); // width of column
column.setCellEditor( new ValidateCellDataEditor(false) );
jScrollPane1 = new javax.swing.JScrollPane(jTable1);
jScrollPane1.setPreferredSize(new java.awt.Dimension(480, 280));
jTable1.setMinimumSize(new java.awt.Dimension(60, 70));
//jTable1.setPreferredSize(new java.awt.Dimension(300, 70));
//jScrollPane1.setViewportView(jTable1);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
jPanel1.add(jScrollPane1, gridBagConstraints);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 0;
add(jPanel1, gridBagConstraints);
// set the row height
jTable1.setRowHeight(rowHeight);
// set selection color
jTable1.setSelectionBackground(rowSelectionBackground);
// set the single selection
jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// avoid table header to resize/ rearrange
jTable1.getTableHeader().setReorderingAllowed(false);
jTable1.getTableHeader().setResizingAllowed(false);
// Table header font
jTable1.getTableHeader().setFont( new Font( jTable1.getFont().getName(),Font.BOLD,jTable1.getFont().getSize() ) );
jButton1.setMnemonic(KeyEvent.VK_A);
// action of add button
jButton1.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent actionEvent){
// If a button press is the trigger to leave a JTable cell and save the data in model
if(jTable1.isEditing() ){
//System.out.println("table is edition ");
String text=((javax.swing.text.JTextComponent)jTable1.getEditorComponent()).getText();
jTable1.setValueAt(text,jTable1.getSelectedRow(),jTable1.getSelectedColumn()) ;
jTable1.getCellEditor().cancelCellEditing();
// find out total available rows
int totalRows = jTable1.getRowCount();
int cols = jTable1.getModel().getColumnCount();
if( jTable1.getModel() instanceof DefaultTableModel ) {
((DefaultTableModel)jTable1.getModel()).addRow(new Object[cols]);
int newRowCount = jTable1.getRowCount();
// select the first row
jTable1.getSelectionModel().setSelectionInterval(newRowCount-1,newRowCount-1);
jButton2.setMnemonic(KeyEvent.VK_D);
// action of Delete button
jButton2.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent actionEvent){
int totalRows = jTable1.getRowCount();
// If there are more than one row in table then delete it
if( totalRows > 0){
int selectedOption = JOptionPane.showConfirmDialog(null,"Are you sure you want to delete this audit row?","Coeus", JOptionPane.YES_NO_OPTION);
// if Yes then selectedOption is 0
// if No then selectedOption is 1
if(0 == selectedOption ){
// get the selected row
int selectedRow = jTable1.getSelectedRow();
System.out.println("Selected Row "+selectedRow);
if( selectedRow != -1 ){
DefaultTableModel dm= (DefaultTableModel)jTable1.getModel();
java.util.Vector v1=dm.getDataVector();
System.out.println("BEFOE "+v1);
v1.remove(selectedRow);
jTable1.removeRowSelectionInterval(selectedRow,selectedRow);
System.out.println("After "+v1);
}else{
// show the error message
JOptionPane.showMessageDialog(null, "Please Select an audit Row", "Coeus", JOptionPane.ERROR_MESSAGE);
} // end of initcomponents
class AcceptenceComboBoxRenderer extends JComboBox implements TableCellRenderer {
public AcceptenceComboBoxRenderer(String[] items) {
super(items);
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
super.setBackground(rowSelectionBackground);
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
// Select the current value
setSelectedItem(value);
return this;
class AcceptenceComboBoxEditor extends DefaultCellEditor {
public AcceptenceComboBoxEditor(String[] items) {
super(new JComboBox(items));
} // end editor class
public class ValidateCellDataEditor extends AbstractCellEditor implements TableCellEditor {
// This is the component that will handle the editing of the
// cell value
JComponent component = new JTextField();
boolean validate;
public ValidateCellDataEditor(boolean validate){
this.validate = validate;
// This method is called when a cell value is edited by the user.
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int rowIndex, int vColIndex) {
if (isSelected) {
component.setBackground(rowSelectionBackground);
// Configure the component with the specified value
JTextField tfield =(JTextField)component;
// if any vaidations to be done for this cell
if(validate){
//tfield.setDocument(new JTextFieldFilter(JTextFieldFilter.NUMERIC,4));
tfield.setText( ((String)value));
// Return the configured component
return component;
// This method is called when editing is completed.
// It must return the new value to be stored in the cell.
public Object getCellEditorValue() {
return ((JTextField)component).getText();
// This method is called just before the cell value
// is saved. If the value is not valid, false should be returned.
public boolean stopCellEditing() {
String s = (String)getCellEditorValue();
return super.stopCellEditing();
public void itemStateChanged(ItemEvent e) {
super.fireEditingStopped();
}//end of ValidateCellDataEditor class
public static void main(String args[]){
JFrame frame = new JFrame();
AuditPanel auditPanel = new AuditPanel();
frame.getContentPane().add(auditPanel);
auditPanel.setAcceptenceOptions(new String[]{"Accepted", "Rejected", "Requested"} );
java.util.Vector colVector = new java.util.Vector();
colVector.add("Fiscal Year");
colVector.add("Audit Accepted");
colVector.add("Comment" );
auditPanel.setColumnNames( colVector);
auditPanel.renderPanel();
frame.pack();
frame.show();

Answer 1

Hi,
I've got the solution for it. As when the cursor is in cell of
a row and hit the delete button, the data in that cell is not saved,
So i'm trying to save the data first into the model then firing the action event by doing this ..
jButton2.addActionListener( new ActionListener(){       
public void actionPerformed(ActionEvent actionEvent){           
// If a button press is the trigger to leave a JTable cell and save the data in model
if(jTable1.isEditing() ){                   
String text=((javax.swing.text.JTextComponent)jTable1.getEditorComponent()).getText();
jTable1.setValueAt(text,jTable1.getSelectedRow(),jTable1.getSelectedColumn()) ;
jTable1.getCellEditor().cancelCellEditing();
// HERE DO THE DELETE ROW OPERATION
<yaman/>