No scrollbar with JTable

Hello!!
I'm working with JTable, and that table is larger than the JFrame. I want to attach a scrollbar onto it so that entire table can be viewable...I used JScrollPane in NetBeans.. but it is not working....
is there any way out???
plz help!!!
thanks in adv..

There's a well known deficiency in JTable that prevents horizontal scrollbars from appearing depending on the specific display options indicated for the JTable instance.
Some searching the bug database should provide information and a workaround.

Similar Messages

Mouselistner is not working with jtable in the browser

Hi
I am having a problem with jTable.
I added a mouselistener to table header to sort table but when i run that applet from my netbean ide it works fine but when i run that applet in my browser it doesn't work, i have tested, its not even generate mouseclick event .Please help me guys.
I call this function after calling initComponents() method of JApplet.
public void setTableAction()
//set mouselistener to sort table on click of table header
final JTableHeader head= jTable1.getTableHeader();
head.addMouseListener(new java.awt.event.MouseAdapter()
public void mouseClicked(java.awt.event.MouseEvent evt)
Vector data= ((DefaultTableModel)jTable1.getModel ()).getDataVector();
sortTable(data, head.columnAtPoint(evt.getPoint()));
//set action map to change the default action performed for enter key pressed
InputMap imap = jTable1.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
KeyStroke enterKey = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
KeyStroke tabKey = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0);
final Action oldAction= jTable1.getActionMap().get(imap.get(tabKey)); // get map to set enter key.
imap.put(enterKey, "enter"); // set enter key
Action newAction = new AbstractAction(){
public void actionPerformed(ActionEvent e) {
oldAction.actionPerformed(e);
JTable table= (JTable)e.getSource();
table.changeSelection(0,0,false,false);
if(table.isCellEditable(0,0))
String sTemp= (String)table.getValueAt(0,0);
if(sTemp.length()>0) {
if(bRenewItem)
retrieveRcodeDetails("",sTemp);
else
processRCodeDetails(sTemp, e);
}else
table.editCellAt(0,0);
jTable1.getActionMap().put("enter", newAction);
jTable1.setPreferredScrollableViewportSize(jTable1.getPreferredSize());
}

Hi,
I also am using the Bépo layout with an encrypted drive and encountered the same problem: the Return key does not work.
It seems to work fine if you use the fr-bepo-latin9 keymap.
# /etc/vconsole.conf
KEYMAP=fr-bepo-latin9
But I also looked at the files /usr/share/kbd/keymaps/i386/bepo/fr-bepo.map.gz and /usr/share/kbd/keymaps/i386/bepo/fr-bepo-latin9.map.gz (you can open gzipped files in vim directly). fr-bepo-latin9.map.gz defines keycode 28 (Return) but fr-bepo.map.gz does not.
I modified fr-bepo.map.gz:
# vim /usr/share/kbd/keymaps/i386/bepo/fr-bepo.map.gz # Append that line : "keycode 28 = Return".
# mkinitcpio -p linux # Rebuild the initramfs.
The Return key now works, but the Backspace (14, "Delete") and Shift (54) keys don’t work. I found that both the cf.map.gz (french canadian layout) and fr-bepo-latin9.map.gz files define those keycodes as well as other non-printing keys so I copied the following lines from fr-bepo-latin9.map.gz to fr-bepo.map.gz:
keycode 1 = Escape Escape
keycode 14 = Delete Delete
keycode 15 = Tab Tab
keycode 28 = Return
keycode 29 = Control
keycode 42 = Shift
keycode 54 = Shift
keycode 56 = Alt
keycode 58 = Caps_Lock
keycode 97 = Control
It works! Don’t forget to rebuild the initramfs after you change the keymap file.
# mkinitcpio -p linux
I will send a message to the kbd and bépo projects mailing lists and report back.

Selection Problem with JTable

Hello,
i have a selection problem with JTable. I want to allow only single cell selection and additionally limit the selection to the first column.
I preffered the style from MS Outlook Express where you can select the email accounts to edit.
It is a table like this:
Account name |   Type |   ...
--------------|---------|---------------------
Hotmail       |   POP3 |
GMX           |   IMAP |The selection should be only avaibable at 'Hotmail' or 'GMX' - not at 'POP3', 'IMAP' or as complete row selection.
Please help me!
Thanks.
Warlock

Maybe this will helpimport java.awt.*;
import javax.swing.*;
public class Test3 extends JFrame {
public Test3() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = getContentPane();
    String[] head = {"One", "Two"};
    String[][] data = {{"R1-C1", "R1-C2"}, {"R2-C1", "R2-C2"}};
    JTable jt = new JTable(data, head);
    jt.getColumnModel().setSelectionModel(new MyTableSelectionModel());
    content.add(new JScrollPane(jt), BorderLayout.CENTER);
    jt.setCellSelectionEnabled(true);
    jt.setRowSelectionAllowed(false);
    jt.setColumnSelectionAllowed(false);
    setSize(300, 300);
    setVisible(true);
public static void main(String[] arghs) { new Test3(); }
class MyTableSelectionModel extends DefaultListSelectionModel {
public void setSelectionInterval(int index0, int index1) {
    super.setSelectionInterval(0, 0);
}

Any body please can solve my problem that iam facing with JTable

Dear sir,
Iam doing an educational product using Swing as front end in that
iam using JTables. And back end iam using sqlserver. With jtable iam
facing very serious problem the problem is actually iam entering the values
in all the columns after that iam pressing the save button its not
saving but if i click on any of the columns and try to save its saving.
please anybody can solve my problem.Please if a piece of code is there ill
be very thankful to you. my mailid is [email protected]
regards
surya

The problem is, the cellEditor does not know that editing has stopped and therefore has not updated the model (where the data actually resides). When you click off the cell to another cell, the first cell knows it must be done editing because you are leaving it. If you click a button (or anything other than another cell), the cell being edited has no knowledge of this. You need to call stopCellEditing() on the cell editor and your problem will be solved. To do this, put the following method into your code and call it when you click the button to clear, save or whatever you need to do.
public void ceaseEditing() { int row = this.getEditingRow();
int col = this.getEditingColumn();
if (row != -1 && col != -1)
this.getCellEditor(row,col).stopCellEditing();
}Hope this helped...

Plz tell me how to use JSpinner with JTable

I have retrieve records from database but as the number of records(rows) are more than 1000 , i want to use JSpinner with JTable . plz solve my problem by giving the appropriate code for the same.

hi
check this links
http://www.exampledepot.com/egs/javax.swing.table/CustRend.html
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
hope this will help you.. this explains exactly what you want.
regards
Aniruddha

JComboBox With JTable as Editor

Hi everybody
I'm working with JTable and having a ComboBox as first CellEditor. for that purpose i used following code
        cmbFeeType.setModel(new javax.swing.DefaultComboBoxModel(DefaultFee.FeeTypeItemList()));
        DefaultCellEditor DCEFeeType = new DefaultCellEditor(cmbFeeType);
        DCEFeeType.setClickCountToStart(2);here DefaultFee.FeeTypeItemList is a vector returns array. This is working fine except that the ComboBox remains visible till I dobule clik on a column for editing. Then It becomes invisible and works fine.
my JComboBox is a seperate Control on a JFrame I do not want to use
Class FeeTypeEditor extends JComboBox implements TableCellEditoras a ComboBox editor for JTable
Please Help Me.

Hi
I am giving u a sample code which simulate the error
* TestJTable.java
* Created on August 5, 2008, 11:05 AM
package TestJTable;
import javax.swing.DefaultCellEditor;
import javax.swing.table.TableColumn;
* @author yogi
public class TestJTable extends javax.swing.JFrame {
    /** Creates new form TestJTable */
    public TestJTable() {
        initComponents();
        DefaultCellEditor ColumnEditor = new DefaultCellEditor(jComboBox1);
        ColumnEditor.setClickCountToStart(2);
        TableColumn column = jTable1.getColumnModel().getColumn(0);
        column.setCellEditor(ColumnEditor);
    /** 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.
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jComboBox1 = new javax.swing.JComboBox();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        getContentPane().setLayout(null);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
        jScrollPane1.setViewportView(jTable1);
        getContentPane().add(jScrollPane1);
        jScrollPane1.setBounds(10, 10, 340, 180);
        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
        getContentPane().add(jComboBox1);
        jComboBox1.setBounds(180, 220, 120, 20);
        pack();
    }// </editor-fold>//GEN-END:initComponents
     * @param args the command line arguments
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                TestJTable TJTable = new TestJTable();
                TJTable.setExtendedState(MAXIMIZED_BOTH);
                TJTable.setVisible(true);
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    // End of variables declaration//GEN-END:variables
}Above code is generated by Netbeans IDE 6.0
My promblem is that when you run the code the combobox JComboBox1 remains visible till i starts to edit the Table after once started editing it disappears.
I want to avoid this
thanks in advance

Issue with JTable

Hi,
I have a issue with JTable. I am reading an array and populating the cells in the JTable. After editing the cell values, on clicking a button, I update the value in to an array. The probelm is that after editing the value in the cell, if I don't use tab or enter key and move the focus away from the cell, I dont get the updated value when using the getValueAt method. Pleease let me know if there is any workaround for this behaviour.
Thanks,
Baskar N

Just so you understand why that code snippit works, you have to stop or cancel editing before you can get the updated value of a cell.

Where can I find a JClient demo with JTable ?

Hi,
Where can I find a good JClient demo with JTable and Bc4J?
Thanks
Friedhold

Friedhold,
there exist a JTable example on otn.oracle.com/products/jdev
For example ther exists a component binding demo
http://otn.oracle.com/sample_code/products/jdev/jclient/JClientBindingDemo.zip
that also shows a table
and a sorter demo that shows how to sort JTables with JClient
http://otn.oracle.com/sample_code/products/jdev/jclient/TableSorter.zip
Finally, a demo that shows how to replace a table cell by a combo box using the table cell renderer
http://otn.oracle.com/sample_code/products/jdev/jclient/JTableCombo.zip
Frank

Help please with Jtable

HI
I'm having problems
I have a frame that has a textField, button, label.
The button is used to diplay the Jtable which has the resultSet.
My query is:
String query = "SELECT personID, firstName, surname FROM Person where firstName = '" + jTxtTest.getText() + "'";
If I enter Gita in the textField and press the button it should display the personID, firstName, surname where firtsname = Gita
in the Jtable and also display Gita in the label.
But it only display Gita in the Label but noting in the Jtable.
What am i doing wrong?????
public class Frame1 extends JFrame {
JPanel contentPane;
BorderLayout borderLayout1 = new BorderLayout();;
          String driver="sun.jdbc.odbc.JdbcOdbcDriver";
          String url="jdbc:odbc:myDatabase";
          String tempname = "";
          int tempcnt;
          JTabbedPane tabbedPane = new JTabbedPane();
          Object[] data = new Object[20];
          DefaultTableModel defaulttablemodel = new DefaultTableModel();
          JTable jtable = new JTable(defaulttablemodel);
JPanel p1 = new JPanel();
JTabbedPane jTabbedPane1 = new JTabbedPane();
JPanel jPanel1 = new JPanel();
JTextField jTxtTest = new JTextField();
JButton jButton1 = new JButton();
JLabel jLabel1 = new JLabel();
/**Construct the frame*/
public Frame1() {
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
/**Component initialization*/
private void jbInit() throws Exception {
setup();
contentPane = (JPanel) this.getContentPane();
this.setSize(new Dimension(554, 532));
this.setTitle("Frame Title");
jPanel1.setLayout(null);
jTxtTest.setBounds(new Rectangle(53, 20, 208, 33));
jButton1.setText("jButton1");
jButton1.setBounds(new Rectangle(314, 19, 130, 36));
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
jLabel1.setBounds(new Rectangle(462, 23, 82, 20));
contentPane.add(jTabbedPane1, BorderLayout.CENTER);
jTabbedPane1.add(jPanel1, "jPanel1");
jPanel1.add(jTxtTest, null);
jPanel1.add(jButton1, null);
jPanel1.add(jLabel1, null);
void setup()
               setupMenuBar();
               showpane1();
               //contentPane.add(tabbedPane, BorderLayout.CENTER);
          //------------------------------------------------------------ End setup -----------------
          //============================================================ Start setupMenuBar ========
          void setupMenuBar()
               MenuBar menuBar = new MenuBar();
               Menu fileMenu = new Menu("File");
                         MenuItem fileExit = new MenuItem("Exit");
                              fileExit.addActionListener(new MenuItemHandler());
                              fileMenu.add(fileExit);
MenuItem filePrev = new MenuItem("Preview");
                              filePrev.addActionListener(new MenuItemHandler());
                              fileMenu.add(filePrev);
                         menuBar.add(fileMenu);
               setMenuBar(menuBar);
          //------------------------------------------------------------ End setupMenuBar-----------
          //============================================================ Start showpane1 =========
          void showpane1() // REPORTS TAB WITH JTABLE
               p1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),"Student Reports 1"));
p1.setBounds(new Rectangle(28, 70, 513, 429));
try
                         Class.forName(driver);
                         Connection connection=DriverManager.getConnection(url);
                         Statement statement = connection.createStatement();
                         String query = "SELECT personID, firstName, surname FROM Person where firstName = '" + jTxtTest.getText() + "'";
                         ResultSet rs = statement.executeQuery(query);
if (rs == null)
System.out.println("cannot execute query");
                         ResultSetMetaData rmeta = rs.getMetaData();
                         int numColumns=rmeta.getColumnCount();
for(int i=1;i<=numColumns;++i)
                              if(i<=numColumns)
                                   defaulttablemodel.addColumn(rmeta.getColumnName(i));
                         while(rs.next())
                              for(int i=1;i<=numColumns;++i)
                                   if(i<=numColumns)
                                        tempname = rs.getString(i);
                                        tempcnt=i-1;
                                        data[tempcnt] = tempname;
                              defaulttablemodel.addRow(data);
               catch(Exception ex)
     p1.add(new JScrollPane(jtable));
          //------------------------------------------------------------ End showpane1 ------------
          //=========================================================== START MenuItemHandler ======
          class MenuItemHandler implements ActionListener
               public void actionPerformed(ActionEvent ev)
                    String s=ev.getActionCommand();
                    if(s=="Exit")
                    System.exit(0);
else if (s=="Preview")
/**Overridden so we can exit when window is closed*/
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
void jButton1_actionPerformed(ActionEvent e) {
jLabel1.setText(jTxtTest.getText());
jPanel1.add(p1);
contentPane.repaint();
}

Hi,
Seems u r new to progrmming.Well u used Jbuilder to write.U wrote good debug statments but forgot to write deubg statment or printstacktrace in excpetions.
ok here is answer for ur problem.
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class Frame1 extends JFrame {
JPanel contentPane;
BorderLayout borderLayout1 = new BorderLayout();;
String driver="org.gjt.mm.mysql.Driver";
String url="jdbc:mysql://thienpo-app.thienpo.com/jps";
String user="";
String pass="";
String tempname = "";
int tempcnt;
boolean firstTime=false;
JTabbedPane tabbedPane = new JTabbedPane();
Object[] data = new Object[20];
DefaultTableModel defaulttablemodel = new DefaultTableModel();
JTable jtable = new JTable(defaulttablemodel);
JPanel p1 = new JPanel();
JTabbedPane jTabbedPane1 = new JTabbedPane();
JPanel jPanel1 = new JPanel();
JTextField jTxtTest = new JTextField();
JButton jButton1 = new JButton();
JLabel jLabel1 = new JLabel();
/**Construct the frame*/
public Frame1() {
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
/**Component initialization*/
private void jbInit() throws Exception {
setupMenuBar();
contentPane = (JPanel) this.getContentPane();
this.setSize(new Dimension(554, 532));
this.setTitle("Frame Title");
jPanel1.setLayout(null);
jTxtTest.setBounds(new Rectangle(53, 20, 208, 33));
jButton1.setText("jButton1");
jButton1.setBounds(new Rectangle(314, 19, 130, 36));
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
jLabel1.setBounds(new Rectangle(462, 23, 82, 20));
contentPane.add(jTabbedPane1, BorderLayout.CENTER);
jTabbedPane1.add(jPanel1, "jPanel1");
jPanel1.add(jTxtTest, null);
jPanel1.add(jButton1, null);
jPanel1.add(jLabel1, null);
this.setVisible(true);
//------------------------------------------------------------ End setup -----------------
//============================================================ Start setupMenuBar ========
void setupMenuBar()
MenuBar menuBar = new MenuBar();
Menu fileMenu = new Menu("File");
MenuItem fileExit = new MenuItem("Exit");
fileExit.addActionListener(new MenuItemHandler());
fileMenu.add(fileExit);
MenuItem filePrev = new MenuItem("Preview");
filePrev.addActionListener(new MenuItemHandler());
fileMenu.add(filePrev);
menuBar.add(fileMenu);
setMenuBar(menuBar);
//------------------------------------------------------------ End setupMenuBar-----------
//============================================================ Start showpane1 =========
void showpane1() // REPORTS TAB WITH JTABLE
p1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),"Student Reports 1"));
p1.setBounds(new Rectangle(28, 70, 513, 429));
try
Class.forName(driver);
Connection connection=DriverManager.getConnection(url,user,pass);
Statement statement = connection.createStatement();
String query = "SELECT personID, firstName, surname FROM Person where firstName = '" + jTxtTest.getText() + "'";
System.out.println(" query"+query);
ResultSet rs = statement.executeQuery(query);
if (rs == null)
System.out.println("cannot execute query");
System.out.println(" query"+query);
ResultSetMetaData rmeta = rs.getMetaData();
int numColumns=rmeta.getColumnCount();
if( !firstTime){
for(int i=1;i<=numColumns;++i)
if(i<=numColumns )
defaulttablemodel.addColumn(rmeta.getColumnName(i));
firstTime=true;
while(rs.next())
for(int i=1;i<=numColumns;++i)
if(i<=numColumns)
tempname = rs.getString(i);
tempcnt=i-1;
data[tempcnt] = tempname;
defaulttablemodel.addRow(data);
catch(Exception ex)
System.out.println("***********************"+ex);
p1.add(new JScrollPane(jtable));
public static void main(String[] args){
     new Frame1();
//------------------------------------------------------------ End showpane1 ------------
//=========================================================== START MenuItemHandler ======
class MenuItemHandler implements ActionListener
public void actionPerformed(ActionEvent ev)
String s=ev.getActionCommand();
if(s=="Exit")
System.exit(0);
else if (s=="Preview")
/**Overridden so we can exit when window is closed*/
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
void jButton1_actionPerformed(ActionEvent e) {
jLabel1.setText(jTxtTest.getText());
showpane1();
jPanel1.add(p1);
contentPane.repaint();
sreeni,
[email protected]

Another problem with JTable

Hi,
I have encountered a problem with JTable, i am trying to display some 15 columns and their values , one of the columns value is null, then the JTable is not displaying its value from this column(which is with null value) onwards.
Can anybody assiss me in this matter.
Regards
khiz_eng

I don't know If I can fix your problem, but
I know just that it works on my PC.... It's very very
slow... I don't know how to insert PageSetUp option... I have to study the problem.....
However I don't think it's a hard problem....
I want ask to you if you have found some problems when you are in Editing mode in a cell.....
in the jdk1.2 version I could save while was in editing mode using the editingStopped method.
It permit to update all data .... also the data in the cell I was editing.
in the jdk 1.3 if I use this method It doesn't work properly... It maybe destroy the content object in the Cell..... because I'm able to print all the table except the editing cell (it throw an exception...)
What's changed????
I don't know...
Can u help me?

Problem hotspot with Jtable

i am sorry may english, my English is not very good, my natural language is Spanish.
I am using jtable, i beginning it with elements null and i fill it after. But when i am going to fill it i get the next error
Java VM: Java HotSpot(TM) Client VM (1.4.0-b92 mixed mode)
# Error ID: 434F444523414348450E43505000BE
# Problematic Thread: prio=7 tid=0x0AB83010 nid=0x7f8 runnable
but i use -server for running, then i don`t get the error.
somebory can help me.

here is the complete class.
I call first the method
iniciaTablaVector(
boolean puede_editar,
boolean puede_sortear,
boolean puede_seleccionar)
after i get the data from the database and add them into the vectors i call
the method
asignaDatosTabla(java.util.Vector vector_campos_usar,
java.util.Vector vector_campos_usar_i,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos)
package version01;
* TITULOS: Programas Boca
* DESCRIPCION Programas Generales
* DERECHO RESERVADO Derechos reservado 2001
* COMPANIA Sistemas Boca
* @AUTORES Jos� Alberto Felipe y Jos� Luis Marte
* @VERSION 1.0
public class ManejoTablaVector02 //extends javax.swing.JTable
javax.swing.JTable vista_tabla;
miModeloTabla mimodelotabla;
private boolean DEBUG = true;
private boolean PUEDE_SEL_COLUMNA = false;
private boolean PUEDE_SEL_FILA = true;
private int fila_sel;
java.awt.Container frame_usar;
ManejoParametros manejoparametros;
java.util.Vector vector_columnas, vector_campos_usar,vector_campos_usar_i;
java.util.Vector vector_datos,vector_datos_campos ;
javax.swing.JComponent[] campos;
java.util.Vector vector_campos;
java.util.TreeMap map_campos;
ManejoPantalla manejopantalla;
javax.swing.ListSelectionModel modelo_fila_sel;
boolean puede_editar;
boolean puede_sortear;
boolean puede_seleccionar;
//Object[] valores_largo;
//Class[] clase_columnas;
java.util.Vector valores_largo;
java.util.Vector clase_columnas;
public ManejoTablaVector02(java.awt.Container frame_usar,
ManejoParametros manejoparametros,
// java.util.Vector vector_datos,
// java.util.Vector vector_datos_campos,
// java.util.Vector vector_campos_usar,
// java.util.Vector vector_campos_usar_i,
javax.swing.JComponent[] campos,
java.util.Vector vector_campos,
java.util.TreeMap map_campos)
this.frame_usar = frame_usar;
this.manejoparametros = manejoparametros;
/* this.vector_campos_usar = vector_campos_usar;
this.vector_campos_usar_i = vector_campos_usar_i;
if (manejoparametros.datos_leidos_tablas == null)
manejoparametros.datos_leidos_tablas = new java.util.Vector();
if (manejoparametros.datos_leidos_campos == null)
manejoparametros.datos_leidos_campos = new java.util.Vector();
// this.vector_datos =
// manejoparametros.datos_leidos_tablas;
// this.vector_datos_campos =
// manejoparametros.datos_leidos_campos;
this.campos = campos;
this.vector_campos = vector_campos;
this.map_campos = map_campos;
// obtieneEncabezadoTabla();
// asignaDatosCamposIniciales();
// obtieneColumnasTabla();
//public javax.swing.JTable iniciaTablaVector(
public void iniciaTablaVector(
boolean puede_editar,
boolean puede_sortear,
boolean puede_seleccionar)
this.puede_editar = puede_editar;
this.puede_sortear = puede_sortear;
this.puede_seleccionar = puede_seleccionar;
// Instead of making the table display the data as it would normally with:
// JTable vista_tabla = new JTable(dataModel);
// Add a sorter, by using the following three lines instead of the one above.
//va TableSorter sorter = new TableSorter(dataModel);
vista_tabla= new javax.swing.JTable();
/*Desabilita el manejo de columna de la tabla para manejarlo manual*/
vista_tabla.setAutoCreateColumnsFromModel(false);
manejopantalla = new ManejoPantalla();
obtieneColumnasTabla();
this.vector_datos =
manejoparametros.datos_leidos_tablas;
this.vector_datos_campos =
manejoparametros.datos_leidos_campos;
iniciaVectorDatos();
mimodelotabla = new miModeloTabla();
/* mimodelotabla = new miModeloTabla(
manejoparametros,
vector_columnas,
vector_datos,
vector_datos_campos,
campos,
vector_campos,
map_campos,
manejopantalla);
vista_tabla.setModel(mimodelotabla);
configuraColumna(vista_tabla);
asignaEscuchadores();
// asignaAnchoColumnas(vista_tabla, mimodelotabla);
// asignaEscuchadores();
// Crear a modelo de tabla.
class miModeloTabla extends javax.swing.table.AbstractTableModel
java.util.Vector vector_columnas;
java.util.Vector vector_campos_usar,
vector_campos_usar_i;
java.util.Vector vector_datos,vector_datos_campos;
javax.swing.JComponent[] campos;
java.util.Vector vector_campos;
java.util.TreeMap map_campos;
ManejoPantalla manejopantalla;
ManejoParametros manejoparametros;
public miModeloTabla(ManejoParametros manejoparametros,
java.util.Vector vector_columnas,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos,
javax.swing.JComponent[] campos,
java.util.Vector vector_campos,
java.util.TreeMap map_campos,
ManejoPantalla manejopantalla)
this.manejoparametros = manejoparametros;
this.vector_columnas = vector_columnas;
// this.vector_campos_usar = vector_campos_usar;
// this.vector_campos_usar_i = vector_campos_usar_i;
this.vector_datos = vector_datos;
this.vector_datos_campos = vector_datos_campos;
this.campos = campos;
this.vector_campos = vector_campos;
this.map_campos = map_campos;
this.manejopantalla = manejopantalla;
// javax.swing.table.TableModel dataModel =
// new javax.swing.table.AbstractTableModel()
// These methods always need to be implemented.
/* Para asignar los anchos de la columna
Se pueden asignar por el la columna que tenga mas tama�o
public final Object[] valores_largo = {"Angela", "Andrews",
"esto es mas que una prueba","prueba",
"prueba","prueba","prueba","prueba","N"};*/
class miModeloTabla extends javax.swing.table.AbstractTableModel
public int getColumnCount()
return vector_columnas.size();
public int getRowCount()
return vector_datos==null ? 0 : vector_datos.size();
public Object getValueAt(int row, int col)
int total_columna = ((java.util.Vector)
(vector_datos.elementAt(row))).size() + 1;
if (total_columna > col)
return ((java.util.Vector)
(vector_datos.elementAt(row))).elementAt(col);
}else
return null;
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
public String getColumnName(int columna)
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
return (String)((Object[])
vector_campos.elementAt(indice_vector_campos))[3];
public Class getColumnClass(int columna)
// {return getValueAt(0,columna).getClass();}
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
return (Class)obtieneTipoColumna(
(String)((Object[])
vector_campos.elementAt(indice_vector_campos))[29]);
public boolean isCellEditable(int fila, int columna)
if (puede_editar)
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
if (((String)
((Object[])
vector_campos.elementAt(
indice_vector_campos))[18]).equals("true"))
return true;
else
return false;
}else return false;
/* public void setValueAt(Object aValue, int fila, int columna)
if (puede_editar)
((java.util.Vector)
(vector_datos.elementAt(fila))).elementAt(columna) = aValue;
fireTableCellUpdated(fila, columna);
// public static void main(String[] args) {
// new TableExample3();
//final de clase
public void asignaDatosTabla(java.util.Vector vector_campos_usar,
java.util.Vector vector_campos_usar_i,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos)
this.vector_campos_usar = vector_campos_usar;
this.vector_campos_usar_i = vector_campos_usar_i;
this.vector_datos = vector_datos;
this.vector_datos_campos = vector_datos_campos;
// asignaDatosCamposIniciales();
// mimodelotabla.fireTableDataChanged();
// configuraColumna(vista_tabla);
// javax.swing.table.TableModel modelo = vista_tabla.getModel();
mimodelotabla.fireTableDataChanged();
// vista_tabla.repaint();
vista_tabla.requestFocus();
javax.swing.ListSelectionModel listseleccion = vista_tabla.getSelectionModel();
listseleccion.setLeadSelectionIndex(0);
vista_tabla.setSelectionModel(listseleccion);
//javax.swing.ListSelectionModel lsm =
// (javax.swing.ListSelectionModel)e.getSource();
// asignaEscuchadores();
public void iniciaVectorDatos()
java.util.Vector vectornulo;
manejoparametros.datos_leidos_tablas.clear();
if (!vector_columnas.isEmpty())
for(int i=0;i<30;i++)
vectornulo = new java.util.Vector();
for (int j = 0;j<vector_columnas.size();j++)
vectornulo.addElement(null);
vector_datos.addElement(vectornulo);
private void asignaEscuchadores()
vista_tabla.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
if (puede_seleccionar) { // true by default
modelo_fila_sel = vista_tabla.getSelectionModel();
modelo_fila_sel.addListSelectionListener(
new javax.swing.event.ListSelectionListener() {
public void valueChanged(
javax.swing.event.ListSelectionEvent e)
javax.swing.ListSelectionModel lsm =
(javax.swing.ListSelectionModel)e.getSource();
int fila_sel = lsm.getMinSelectionIndex();
// DEBO BUSCAR UNA FORMA DE DETERMINAR SI EL VECTOR DE CAMPOS TIENE DATOS
if (!vector_datos_campos.isEmpty())// !=null)
manejopantalla.asignaDatosPantalla(
(java.util.TreeMap)
vector_datos_campos.elementAt(fila_sel),
campos,
vector_campos);
/*Aqui funcionan para cambiar los campos de arriba de la forma
que esta abajo
((javax.swing.JTextField)campos[0]).setText(
(String)vista_tabla.getValueAt(fila_sel,0));
((javax.swing.JTextField)campos[1]).setText((String)vista_tabla.getValueAt(fila_sel,1));
//v if (lsm.isSelectionEmpty()) {
//v System.out.println("No rows are selected.");
//v } else {
//v int selectedRow = lsm.getMinSelectionIndex();
//v System.out.println("Row " + selectedRow
//v + " is now selected.");
//v }
} else {
vista_tabla.setRowSelectionAllowed(false);
vista_tabla.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
fila_sel = vista_tabla.getSelectedRow();
if (e.getClickCount() ==2)
asignaDatosSeleccionados(fila_sel);
salirPrograma();
// System.out.println("FILA SEL --> " + fila_sel);
/*Aqui va chequeo de seleccion
((javax.swing.JTextField)campos[0]).setText((String)vista_tabla.getValueAt(fila_sel,0));
((javax.swing.JTextField)campos[1]).setText((String)vista_tabla.getValueAt(fila_sel,1));
vista_tabla.addKeyListener(new java.awt.event.KeyAdapter()
public void keyPressed(java.awt.event.KeyEvent e)
// char c = e.getKeyChar();
int keycode = e.getKeyCode();
if (keycode == 10)
fila_sel = vista_tabla.getSelectedRow();
asignaDatosSeleccionados(fila_sel);
salirPrograma();
// System.out.println("FILA SEL --> " + fila_sel);
public void configuraColumna(javax.swing.JTable tabla)
int tamano;
for (int i=0;i<vector_columnas.size();i++)
String indice_str =(String)
((Object[])vector_columnas.elementAt(i))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
/*Aqui se asigna en render de cada celda esto permite
fijar el font de las celdas, el borde, fijar, estado
colores,etc. Debo crear uno propio para tener mas control*/
javax.swing.table.DefaultTableCellRenderer
renderer = new javax.swing.table.DefaultTableCellRenderer();
/*Debo agregar un campo en el archivo de configuracion para
saber como voy alinear el campo (derecha,izquierda,centro)*/
renderer.setHorizontalAlignment(renderer.LEFT);
//javax.swing.JLabel.LEFTNTER_ALIGNMENT);
// renderer.setText((String)((Object[])
// vector_campos.elementAt(
// indice_vector_campos))[3]);
if (!UtilitariosGenerales.isCampoBlanco(((String)((Object[])
vector_campos.elementAt(
indice_vector_campos))[26])))
tamano = Integer.parseInt(((String)((Object[])
vector_campos.elementAt(
indice_vector_campos))[26]));
}else
tamano = 10;
/*Debo crear mi propio tipo de editor de celdas, para formatear
los datos debo llamarlo aqui, ahi tomo en cuenta el tipo de
datos que voy a usar (JCombo, JcheckBox, JTextField)*/
javax.swing.table.TableCellEditor editor;
if (
/* ((String)((Object[])
vector_campos.elementAt(indice_vector_campos))[2]).equals("JCheckBox")
((String)((Object[])
vector_campos.elementAt(indice_vector_campos))[29]).equals("Boolean")
javax.swing.JCheckBox checkbox = new javax.swing.JCheckBox();
editor = new javax.swing.DefaultCellEditor(checkbox);
else
javax.swing.JTextField jtextfield = new javax.swing.JTextField();
editor = new javax.swing.DefaultCellEditor(jtextfield);
javax.swing.table.TableColumn columna = new
javax.swing.table.TableColumn(
i,tamano,renderer,editor);
tabla.addColumn(columna);
public void obtieneColumnasTabla()
vector_columnas = new java.util.Vector();
int indice_vector;
String[] informacion_columna;
for (int i=0;i<vector_campos.size();i++)
if (!
((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JTable"))
continue;
informacion_columna = new String[2];
informacion_columna[0] = (String)((Object[])vector_campos.elementAt(i))[3];
informacion_columna[1] = String.valueOf(i);
vector_columnas.addElement(informacion_columna);
public Object obtieneTipoColumna(String tipo_columna)
String[] arreglo_tipo = {"String","Long","Integer","Double","Boolean"};
int i = java.util.Arrays.binarySearch(arreglo_tipo,tipo_columna);
switch (i)
case 0:
return String.class;
case 1:
return Long.class;
case 2:
return Integer.class;
case 3:
return Double.class;
case 4:
return Boolean.class;
default:
return String.class;
class FormattedCellRenderer extends javax.swing.table.DefaultTableCellRenderer
     protected java.text.Format m_format;
     public FormattedCellRenderer(java.text.Format format) {
          m_format = format;
     public java.awt.Component getTableCellRendererComponent(
javax.swing.JTable table,
          Object value, boolean isSelected, boolean hasFocus,
          int nRow, int nCol)
          return super.getTableCellRendererComponent(table,
               value==null ? null : m_format.format(value),
               isSelected, hasFocus, nRow, nCol);
class FormattedCellEditor extends javax.swing.DefaultCellEditor
     public FormattedCellEditor(final javax.swing.JFormattedTextField
               formattedTextField) {
          super(formattedTextField);
System.out.println(delegate);
          formattedTextField.removeActionListener(delegate);
          delegate = new EditorDelegate() {
               public void setValue(Object value) {
                    formattedTextField.setValue(value);
               public Object getCellEditorValue() {
                    return formattedTextField.getValue();
          formattedTextField.addActionListener(delegate);
          formattedTextField.setBorder(null);
public void asignaDatosSeleccionados(int fila)
if (fila >=0 && fila < vector_datos.size())
manejoparametros.isSeleccionada = true;
java.util.TreeMap map_datos_sel = new java.util.TreeMap();
int indice_vector;
int total_tabla=-1;
int total_campos = -1;
for (int i=0;i<vector_campos_usar.size();i++)
// String[] arreglo_campo_usar = new String[2];
// arreglo_campo_usar = (String[])vector_campos_usar.elementAt(i);
// indice_vector = Integer.parseInt(arreglo_campo_usar[0]);
/*AQUI DEBO CLASIFICAR SI ES FIJO O ES DE LA TABLA*/
if (!
((String)((Object[])vector_campos_usar_i.elementAt(i))[2]).equals(
"JTable"))
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos_usar_i.elementAt(i))[28]) ) &&
!((String)((Object[])vector_campos_usar_i.elementAt(i))[40]).equals(
"true"))
if (!map_datos_sel.containsKey(
((Object[])vector_campos_usar_i.elementAt(i))[28]))
total_campos++;
Object valores = ((java.util.TreeMap)
vector_datos_campos.elementAt(fila)).get(
((Object[])vector_campos_usar_i.elementAt(
i))[28]);
map_datos_sel.put( ((Object[])vector_campos_usar_i.elementAt(i))[28],
valores);
// ((java.util.Vector)
// vector_datos_campos.elementAt(fila)).elementAt(total_campos) );
// continue;
for (int i =0;i<vector_campos.size();i++)
if (
((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JTable"))
total_tabla++;
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos.elementAt(i))[28]) ))
if (!map_datos_sel.containsKey(
((Object[])vector_campos.elementAt(i))[28]))
map_datos_sel.put( ((Object[])vector_campos.elementAt(i))[28],
((java.util.Vector)
vector_datos.elementAt(fila)).elementAt(i) );
manejoparametros.fila_seleccionada = fila;
manejoparametros.map_datos_seleccionados = map_datos_sel;
public void obtieneDatosSeleccionados_ant(int fila)
if (fila >=0 && fila < vector_datos.size())
manejoparametros.isSeleccionada = true;
java.util.TreeMap map_datos_sel = new java.util.TreeMap();
int indice_vector;
int total_tabla=-1;
for (int i=0;i<vector_campos_usar.size();i++)
// String[] arreglo_campo_usar = new String[2];
// arreglo_campo_usar = (String[])vector_campos_usar.elementAt(i);
// indice_vector = Integer.parseInt(arreglo_campo_usar[0]);
/*AQUI DEBO CLASIFICAR SI ES FIJO O ES DE LA TABLA*/
if (!
((String)((Object[])vector_campos_usar_i.elementAt(i))[2]).equals(
"JTable"))
continue;
else
total_tabla++;
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos_usar_i.elementAt(i))[28]) ))
if (!map_datos_sel.containsKey(
((Object[])vector_campos_usar_i.elementAt(i))[28]))
map_datos_sel.put( ((Object[])vector_campos_usar_i.elementAt(i))[28],
((java.util.Vector)
vector_datos.elementAt(fila)).elementAt(total_tabla) );
int total_campos = -1;
for (int i=0;i<vector_campos.size();i++)
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos.elementAt(i))[28]) ) &&
!((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JEncadena"))
if (!map_datos_sel.containsKey(
((Object[])vector_campos.elementAt(i))[28]))
total_campos++;
String valores = (String)((java.util.TreeMap)
vector_datos_campos.elementAt(fila)).get(
((Object[])vector_campos.elementAt(
i))[28]);
map_datos_sel.put( ((Object[])vector_campos.elementAt(i))[28],
valores);
// ((java.util.Vector)
// vector_datos_campos.elementAt(fila)).elementAt(total_campos) );
manejoparametros.fila_seleccionada = fila;
manejoparametros.map_datos_seleccionados = map_datos_sel;
public void salirPrograma()
try
if (frame_usar instanceof javax.swing.JDialog)
((javax.swing.JDialog)frame_usar).setName("botones");
((javax.swing.JDialog)frame_usar).dispose();
}else
((javax.swing.JFrame)frame_usar).setName("botones");
((javax.swing.JFrame)frame_usar).dispose();
}catch (Exception ex)
System.out.println(ex.toString());
}

Use JSpinner with JTable

I have retrieve records from database but as the number of records(rows) are more than 1000 , i want to use JSpinner with JTable. How can i do so?

you can start by being more clear on what your requirements are.

A problem with JTable

Hi !
I have a problem with JTable - would like to use this component as a simple list of rows taken from a database : don't want to be able select or set a focus to a column - want only to be able select and set focus to a row ( just like in the menus). How to disable "focusability" for a cell with JTable ? Could You help me ?
thnx in advance

The Border is changed by the renderer, depending on whether the cell has focus or not. So you will need to create custom renderers without a Border. Something like:
class NoBorderRenderer extends DefaultTableCellRenderer
     public Component getTableCellRendererComponent(
          JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
          super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
          setBorder(null);
          return this;
}

Scrollbar problem with JTable.

Hi,
I have 45 columns in a JTable. Please remember this is customize, we can change the number of columns dynamically, at max they can be 2 columns.
i was having a problem with display the columns names in my Frame. I posted at http://forum.java.sun.com/thread.jspa?threadID=5167358&messageID=9641265#9641265
I got the solution. Thanks for that.
But as i said these columns are customized.
when i am having 2 columns in my JTable, table.setAutoResizeMode( JTable.AUTO_RESIZE_OFF ); is behaving differently, it's not occupying the complete JFrame. Lots of space is left out beside these 2 columns.
When i comment this line, then those 2 columns are occupying my complete Frame.
these two colmns should occupy my complete Frame and if i select 45 columns i should get scroll bar at botton with complete column NAMES.
Hope i am clear.
My Snippet
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
import java.util.*;
public class SimpleTable extends JPanel {
    private boolean DEBUG = false;
    public SimpleTable() {
        super(new BorderLayout());
                    String[][] values = new String[10][];
        String[] columnNames = {
                                                                                "First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian","First Name","Last Name","Sport","# of Years","Vegetarian"
        Object[][] data = {
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)},
            {"Mary", "Campione",
             "Snowboarding", new Integer(5), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new Integer(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new Integer(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new Integer(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new Integer(10), new Boolean(false)}
                    DefaultTableModel defaulttablemodel = new DefaultTableModel(data,columnNames);
        final JTable table = new JTable(defaulttablemodel)
             public boolean isCellEditable(int row,int column)
                              return false;
                    table.setPreferredScrollableViewportSize(new Dimension(500, 70));
                    //table.setAutoResizeMode( JTable.AUTO_RESIZE_OFF );
                    JScrollPane scrollPane = new JScrollPane(table);
                    add(scrollPane);
    private static void createAndShowGUI() {
        JFrame frame = new JFrame("SimpleTable");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        SimpleTable newContentPane = new SimpleTable();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);
        frame.pack();
        frame.setVisible(true);
    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
}

Thank You camickr, it's serving my purpose.
Just for a clarrification :
table.setAutoResizeMode( JTable.AUTO_RESIZE_OFF );
table.setAutoscrolls(false);without using these lines also my purpose is serving.....then y do we need above two lines of code. r they necessary
i mean, this snippet is sufficient.
public boolean getScrollableTracksViewportWidth()
     return getPreferredSize().width < getParent().getWidth();
}

Vertical ScrollBar for JTable disappears when trying to scroll!

Hi!
I have 2 JTables and these are in a JScrollPane. I need to add a Vertical ScrollBar in such a way that when the number of rows increases, the scrollbar will scroll both the table's data.
I am not using the Vertical ScrollBar of the ScrollPane instead i have added a JScrollBar to the two Panes( i.e. scrollPane.setVerticalScrollBar() ). This works fine.
But when I remove the columns from the right JTable , i.e. I have only one JTable left, the Vertical scrollbar disappears inspite of the number of rows being the same.
I have tried setting ViewPortView etc. but nothing works.
Please help!

Remember that was a test. It tells us the iPhoto is essentially sound and the issue is within that main Library.
Next move is to try repair that library.
Option 1
Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Choose to Repair Database. If that doesn't help, then try again, this time using Rebuild Database.
If that fails:
Option 2
Download iPhoto Library Manager and use its rebuild function. (In early versions of Library Manager it's the File -> Rebuild command. In later versions it's under the Library menu.)
This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
Regards
TD

No scrollbar with JTable

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