JTable in JTabbedPane

Hello
I have a little GUI problem. I created a dialog with a JTabbedPane in the center that contains some JPanel with labels, fields etc. (nothing heavy). The Dialog has a size about 100px*200px.
Now I put a JTable (with no sizing information) in a JScrollPane and add it to the JTabbedPane and the Dialog gets a size of about 200px*200px.
Why? I tried a lot, but nothing helped?
Thankful for every help.

Oh sorry,
I want that the JTable (and the JScrollPane) adopts the size of the Dialog (before I added the table). I don't set any size in my code for the dialog and the panels. I set only size for some JFields in the panels and pack() the dialog.
First everything is wonderfull aligned, but when I add the scrollpane with the table the whole dialog becomes wider.
Is there a chance that the new tab gets the old size?

Similar Messages

JTable on JTabbedPane

Hi,
I was wondering how you would add a JTable onto a JTabbedPane?
Thanks

import javax.swing.*;
import java.awt.*;
public class TabTable {
     TabTable(){
          JFrame.setDefaultLookAndFeelDecorated(true);
          JFrame f = new JFrame("JTable in JTabbedPane ...");
          JTabbedPane tab = new JTabbedPane();
          Object table [][] = {{"Singaravelan","21","MALE"},{"Devanderan","19","MALE"}};
          String column [] = {"NAME","AGE","SEX"};
          JTable jtable = new JTable(table,column);
          JPanel panel = new JPanel();
          panel.setLayout(new FlowLayout());
          panel.add(jtable);
          tab.addTab("Table 1",panel);
          tab.addTab("Table 2",new JLabel("Table 2",JLabel.CENTER));
          tab.addTab("Table 3",new JLabel("Table 3",JLabel.CENTER));
          f.getContentPane().add(tab);
          f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          f.setSize(500,500);
          f.setVisible(true);
     public static void main(String args[]){
          new TabTable();
}

Resize JTable in JTabbedPane

Given the FileTableDemo from the Java Foundation Class in a Nutshell book.(O'Reilly) Chapter 3 page 51 in my addition.
I have modified the example to place the JTable in a JTabbedPane. Now when the window (JFrame) is resized by the user the JTable no longer resizes. How do I passing the "resizing" into the component (JTable) placed in the JTabbedPane?
Here is the code: My deviation from the example is enclosed in "///////////KBS" and of course the line frame.getContentPane().add(myTP, "Center"); where "pane" has been replaced with "myTP"
Thanks Brad
import javax.swing.*;
import javax.swing.table.*;
import java.io.File;
import java.util.Date;
public class FileTableDemo
public static void main(String[] args)
// Figure out what directory to display
File dir;
if (args.length > 0)
dir = new File(args[0]);
else
dir = new File(System.getProperty("user.home"));
// Create a TableModel object to represent the contents of the directory
FileTableModel model = new FileTableModel(dir);
// Create a JTable and tell it to display our model
JTable table = new JTable(model);
JScrollPane pane = new JScrollPane(table);
pane.setBorder(BorderFactory.createEmptyBorder(60,20,20,20));
////////KBS
JTabbedPane myTP = new JTabbedPane();
JPanel myOne = new JPanel();
JPanel myTwo = new JPanel();
myOne.add(pane);
myTP.add("One", myOne);
myTP.add("Two", myTwo);
////////KBS
// Display it all in a scrolling window and make the window appear
JFrame frame = new JFrame("FileTableDemo");
frame.getContentPane().add(myTP, "Center");
frame.setSize(600, 400);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
// The methods in this class allow the JTable component to get
// and display data about the files in a specified directory.
// It represents a table with six columns: filename, size, modification date,
// plus three columns for flags: direcotry, readable, writable
class FileTableModel extends AbstractTableModel
protected File dir;
protected String[] filenames;
protected String[] columnNames = new String[] {
"name",
"size",
"last modified",
"directory?",
"readable?",
"writable?"
protected Class[] columnClasses = new Class[] {
String.class,
Long.class,
Date.class,
Boolean.class,
Boolean.class,
Boolean.class
// This table model works for any one given directory
public FileTableModel(File dir)
this.dir = dir;
this.filenames = dir.list();
// These are easy methods
public int getColumnCount()
return 6;
public int getRowCount()
return filenames.length;
// Information about each column
public String getColumnName(int col)
return columnNames[col];
public Class getColumnClass(int col)
return columnClasses[col];
// The method that must actually return the value of each cell
public Object getValueAt(int row, int col)
File f = new File(dir, filenames[row]);
switch(col)
case 0: return filenames[row];
case 1: return new Long(f.length());
case 2: return new Date(f.lastModified());
case 3: return f.isDirectory() ? Boolean.TRUE : Boolean.FALSE;
case 4: return f.canRead() ? Boolean.TRUE : Boolean.FALSE;
case 5: return f.canWrite() ? Boolean.TRUE : Boolean.FALSE;
default: return null;
}

Well, I didn't find an answer but I did find a solution.
The JPanel is the problem. I use it to help with layout which is not obvious in this example.
As you can see in the code the JTable is placed in a JScrollPane which is place in a JPanel which is placed in a JTabbedPane.
If I use Box instead of JPanel the JTable in the JScrollPane in the Box in the TabbedPane in the JFrame resizes correclty.
So although JPanel is resizable with setSize it does not get resized when it's JFrame gets resized.
I would still like to know why?
////////KBS
JTabbedPane myTP = new JTabbedPane();
Box myOne = Box.createHorizontalBox();
Box myTwo = Box.createHorizontalBox();
myOne.add(pane);
myTP.add("One", myOne);
myTP.add("Two", myTwo);
////////KBS

Issue with re-sizing JTable Headers, JTabbedPane and JSplit pane

Ok, hopefully I'll explain this well enough.
In my Swing application I have a split pane, on the left hand side is a JTable and on the right hand is a JTabbedPane. In the tabs of the JTabbedPane there are other JTables.
In order to make the rows in the JTable on the left and the JTable(s) on the right line up, the Table Header of all the tables is set to the size of the tallest (deepest?) table header.
Hopefully so far I'm making sense. Now to get to the issue. One of the tables has a number of columns equal to the value on a NumberSpinner (it represents a number of weeks). When this value is changed the table is modified so that it contains the correct number of columns. As the table is re-drawn the table header goes back to its default size so I call my header-resize method to ensure it lines up.
The problem is this: if I change the number of weeks when selecting a tab other than the one containing my table then everything is fine, the table header is re-sized and everything lines up. If I change the number of weeks with the tab containing the table selected, the column headers stay at their standard size and nothing lines up.
To make things more complicated, I also put System.out.println's in as every method called in the process to obtain the size of the table header. And every println returned the same height, the height the table header should be.. So I'm really confused.
Could anyone shed any light on this?
Thanks.

Okay I managed to solve the problem by explicitly revalidating and repainting the table header.
Not sure why it wasnt doing it properly for that table when all the others where fine.
Oh well...

Ctrl PgUp / CtrlPgDown in JTables vs JTabbedPanes

Hi there, another wee JTable problem.
I want Ctrl PageUp and Ctrl PageDown to move between JTabbedPanes. This normally works, except when the focus is currently in a JTable. I want it to also work if the focus is in a JTable.
I have tried to stop the JTable from handling the keys by setting the inputmap to "none" but this has no effect (you can see my code for this below).
Here is a test program that shows the bad behaviourimport java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class TestTable extends JTable {
     public TestTable(Object[][] data, Object[] headings) {
          super(data, headings);
          setFocusTraversalPolicyProvider(true);
          // Turn off Ctrl PgUp and Ctrl PgDown handling so tab navigation works.
          InputMap inputs = getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
          KeyStroke ctrlPgUpKey = KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_DOWN_MASK);
          inputs.put(ctrlPgUpKey, "None");
          KeyStroke ctrlPgDownKey = KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_DOWN, InputEvent.CTRL_DOWN_MASK);
          inputs.put(ctrlPgDownKey, "None");
     public boolean isCellEditable(int row, int column) {
          return false;
     public static void main(String[] args) {
          JFrame frame = new JFrame("Test table");
          JTabbedPane pane = new JTabbedPane();
          frame.add(pane);
          JPanel panel = new JPanel();
          JTextField field = new JTextField("Key Ctrl PgDown or Ctrl PgUp");
          panel.add(field);
          pane.add("test1", panel);
          pane.add("test2", new JScrollPane(new TestTable(new String[][] {{"hello", "me"}}, new String[]{"H1", "H2"})));
          pane.add("test3", new JPanel());
          frame.setBounds(100, 100, 300, 300);
          frame.setVisible(true);
}Thanks,
Tim

i had a similiar problem, had some UIs that had a Tabbed pane and
ScrollBars, and some tabs had JTables in them, anyhow, I just wanted
Control-Page_up/Down to work for the JTabbedPane all the the time so
I did this in my windows look and feel applications and all was well, just posting so maybe this will help someone down the road
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
UIDefaults uiDefaults = UIManager.getDefaults();
// ginny wants Control-Page-Up and Control-Page-Down to work for tabbed
// panes, which it does by default, however, it also works for JTable
// and JScrollPane, and those components grab the keystroke 1st if they are
// all in the same screen, so disabling it for JTable and JScrollPane
// see WindowsLookAndFeel.java
uiDefaults.remove("ScrollPane.ancestorInputMap");
uiDefaults.put("ScrollPane.ancestorInputMap",
new UIDefaults.LazyInputMap(new Object[] {
"RIGHT", "unitScrollRight",
"KP_RIGHT", "unitScrollRight",
"DOWN", "unitScrollDown",
"KP_DOWN", "unitScrollDown",
"LEFT", "unitScrollLeft",
"KP_LEFT", "unitScrollLeft",
"UP", "unitScrollUp",
"KP_UP", "unitScrollUp",
"PAGE_UP", "scrollUp",
"PAGE_DOWN", "scrollDown",
"ctrl PAGE_UP", "None", //"scrollLeft",
"ctrl PAGE_DOWN", "None",//"scrollRight",
"ctrl HOME", "scrollHome",
"ctrl END", "scrollEnd"
uiDefaults.remove("Table.ancestorInputMap");
uiDefaults.put("Table.ancestorInputMap",
new UIDefaults.LazyInputMap(new Object[] {
"ctrl C", "copy",
"ctrl V", "paste",
"ctrl X", "cut",
"COPY", "copy",
"PASTE", "paste",
"CUT", "cut",
"RIGHT", "selectNextColumn",
"KP_RIGHT", "selectNextColumn",
"LEFT", "selectPreviousColumn",
"KP_LEFT", "selectPreviousColumn",
"DOWN", "selectNextRow",
"KP_DOWN", "selectNextRow",
"UP", "selectPreviousRow",
"KP_UP", "selectPreviousRow",
"shift RIGHT", "selectNextColumnExtendSelection",
"shift KP_RIGHT", "selectNextColumnExtendSelection",
"shift LEFT", "selectPreviousColumnExtendSelection",
"shift KP_LEFT", "selectPreviousColumnExtendSelection",
"shift DOWN", "selectNextRowExtendSelection",
"shift KP_DOWN", "selectNextRowExtendSelection",
"shift UP", "selectPreviousRowExtendSelection",
"shift KP_UP", "selectPreviousRowExtendSelection",
"PAGE_UP", "scrollUpChangeSelection",
"PAGE_DOWN", "scrollDownChangeSelection",
"HOME", "selectFirstColumn",
"END", "selectLastColumn",
"shift PAGE_UP", "scrollUpExtendSelection",
"shift PAGE_DOWN", "scrollDownExtendSelection",
"shift HOME", "selectFirstColumnExtendSelection",
"shift END", "selectLastColumnExtendSelection",
"ctrl PAGE_UP", "None", //"scrollLeftChangeSelection",
"ctrl PAGE_DOWN", "None", //"scrollRightChangeSelection",
"ctrl HOME", "selectFirstRow",
"ctrl END", "selectLastRow",
"ctrl shift PAGE_UP", "scrollRightExtendSelection",
"ctrl shift PAGE_DOWN", "scrollLeftExtendSelection",
"ctrl shift HOME", "selectFirstRowExtendSelection",
"ctrl shift END", "selectLastRowExtendSelection",
"TAB", "selectNextColumnCell",
"shift TAB", "selectPreviousColumnCell",
"ENTER", "selectNextRowCell",
"shift ENTER", "selectPreviousRowCell",
"ctrl A", "selectAll",
"ESCAPE", "cancel",
"F2", "startEditing"
}));

JTable and JTabbedPane questions

I have an application which has some JTabbedPanes setup, one of which has a table on it.
What i'm after is a way of having a user select a row from the table and in doing so this will send them to another tabbedpane.
So what i need is a way of assigning each row an ID number, then being able to extract this ID, and being able to switch to a new tab without having to click on the tab itself.
I hope someone can point me in the right direction.
One more question as well.
I'm designing a networked bulletinboard application (using javaspaces) and i'm having an implementation issue.
At the moment I can list all the topics in a table which just contains |the author, topic title and date created|.
I'm having trouble thinking of a good way of displaying the actuall topic itself (and multiple follow-up posts).
I was thinking of doing this in another table, but i couldnt find a way of customizing the layout enough to display formatted text. So i thought I would just do a loop of JTextAreas for each topic.
Something along the lines of:
while (i < number_of_posts)
Create_JTextArea(post[i]);
Do you think this would be a suitable way of implementing this? Or is there a better way that i'm missing?

So what i need is a way of assigning each row an ID numberStore the ID number in the TableModel. You then just remove the TableColumn from the TableColumnModel and the ID will not be displayed in the table. You then simply use model.getValueAt(...) to reference the ID.

JTabbedPane,JTable in JPopupMenu

Hai,
In my applet, I have added JTabbedPane and JTable in JPopupmenu just like JPanel using Java 1.3. It works fine. Now when I run this applet using Java 1.5 plugin, if I click on that JTable or JTabbedPane over JPopupmenu it closed automatically. It works fine in Java 1.4 also.
Any ideas...?

Hai,
Finally I got solution for this. If I use
show(Component invoker, int x, int y) method it gives problem. So
I have changed my code using setLocation(int x,int x) and then
setVisible(true). It works fine.
But Now I have got another problem. If I add JTextField over JPopupMenu, I couldn't edit that textfield.
Anybody having solution for this?

Why can I only add up to 7 rows in a table???

I have written the following programme
but can only allow 6 addButton clicks....(I want to allow adding unlimited number of rows)
can anyone run the code and help me out please???
import javax.swing.border.* ;
import javax.swing.* ;
import java.awt.Dimension;
import java.awt.event.* ;
import java.util.*;
import java.awt.*;
import javax.swing.table.TableColumn;
import javax.swing.JTable;
import javax.swing.DefaultCellEditor;
import javax.swing.table.*;
public class ReadingListDialog extends javax.swing.JDialog{
ReadingListDialog me;
String[] type = {"Text Book", "Online Material","Other"};
String[] columns;
JComboBox typeComboBox;
JButton editButton;
JButton cancelButton;
JButton saveButton;
JButton addButton;
JButton deleteButton;
JTable bookTable;
JTable onlineTable;
JTable otherTable;
JTabbedPane tabbedPane;
Box outerBox;
Box buttonBox;
JScrollPane bookScrollPane ;
JScrollPane onlineScrollPane ;
JScrollPane otherScrollPane ;
Vector row;
DefaultTableModel bookModel;
DefaultTableModel onlineModel;
DefaultTableModel otherModel;
private boolean DEBUG = true;
/** Creates a new instance of ReadingListDialog */
public ReadingListDialog(java.awt.Frame parent, boolean modal, boolean edit) {
initComponents();
public void initComponents(){
me = this ;
ImageIcon icon = new ImageIcon("middle.gif");
Object[][] bookData = {
// {"Altemate Java", "Robert Sedgewick", "Library", "June 30", "p.130-150","No notes","Read"},
//{"Elementary Algebra","Ian Horthorn","Desk Copy","sep 28","p.111, p.112","important topic!!!True......hello everyone","Not Read"},
String[] bookColumn = {"Text Title",
"Author",
"Location",
"Read By Date",
"Page/Chapter",
"Note",
"Status"
DefaultTableModel bookModel = new DefaultTableModel(bookData, bookColumn);
bookTable = new JTable(bookModel);
setUpReadingStatusColumn(bookTable.getColumnModel().getColumn(6));
bookTable.setPreferredScrollableViewportSize(new Dimension(500, 35));
Object[][] onlineData = {
// {"Google", "www.google.com", "June 30", "a search engine","Don't understand"},
// {"Waikato Uni","www.waikato.ac.nz","Sep 29","important topic!!!True......hello everyone","Half way"},
String[] onlineColumn = {"Website Name",
"URL",
"Read By Date",
"Note",
"Status"
DefaultTableModel onlineModel = new DefaultTableModel(onlineData, onlineColumn);
onlineTable = new JTable(onlineModel);
setUpReadingStatusColumn(onlineTable.getColumnModel().getColumn(4));
onlineTable.setPreferredScrollableViewportSize(new Dimension(500, 35));
Object[][] otherData = {
//{"Lecture slide", "N/A", "June 30", "useful for assignment 2","Read"},
//{"Notes on Linear Algebra","DeskCopy","Sep 29","important topic!!!True......hello everyone","Not Read"},
String[] otherColumn = {"Material",
"Location",
"Read By Date",
"Note",
"Status"
DefaultTableModel otherModel = new DefaultTableModel(otherData, otherColumn);
otherTable = new JTable(otherModel);
setUpReadingStatusColumn(otherTable.getColumnModel().getColumn(4));
otherTable.setPreferredScrollableViewportSize(new Dimension(500, 35));
tabbedPane = new JTabbedPane();
//create the buttons
cancelButton = new JButton("Cancel");
saveButton = new JButton("Save");
addButton = new JButton( "Add Row" );
deleteButton = new JButton("Delete Row");
//add buttons to buttonBox
buttonBox = new Box(BoxLayout.X_AXIS);
buttonBox.add(saveButton);
buttonBox.add(addButton);
buttonBox.add(deleteButton);
buttonBox.add(cancelButton);
addButton.addActionListener( new ActionListener()          {
public void actionPerformed(ActionEvent e)               {
DefaultTableModel bookModel = (DefaultTableModel)bookTable.getModel();
Object[] newRow = new Object[7];
int row = bookTable.getRowCount() + 1;
for(int k = 0; k<row; k++)
newRow[k] = "";
bookModel.addRow( newRow );
//Create the scroll pane and add the table to it.
bookScrollPane= new JScrollPane(bookTable);
onlineScrollPane = new JScrollPane(onlineTable);
otherScrollPane = new JScrollPane(otherTable);
//add the scroll panes to each tab
tabbedPane.addTab("Text Book Readings", icon, bookScrollPane, "Edit your reading list");
tabbedPane.setSelectedIndex(0);
tabbedPane.addTab("Online Readings", icon, onlineScrollPane, "Still does nothing");
tabbedPane.addTab("Other Materials", icon, otherScrollPane, "Still does nothing");
//add the tabbedPane to outerBox
outerBox = new Box(BoxLayout.Y_AXIS);
//outerBox.setBorder(new EmptyBorder(0,0,20,15));
outerBox.add(tabbedPane);
outerBox.add(buttonBox);
//add the outerBox to the pane
getContentPane().add(outerBox);
if (DEBUG) {
bookTable.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
//printDebugData(bookTable);
cancelButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
me.dispose();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
public void setUpReadingStatusColumn(TableColumn statusColumn) {
//Set up the editor for the status cells.
JComboBox comboBox = new JComboBox();
comboBox.addItem("");
comboBox.addItem("Read");
comboBox.addItem("Just Started");
comboBox.addItem("Half way");
comboBox.addItem("Not Read");
comboBox.addItem("Don't understand");
statusColumn.setCellEditor(new DefaultCellEditor(comboBox));
//Set up tool tips for the status cells.
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for selecting a status");
statusColumn.setCellRenderer(renderer);
//Set up tool tip for the status column header.
TableCellRenderer headerRenderer = statusColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer) {
((DefaultTableCellRenderer)headerRenderer).setToolTipText(
"Click the satus to see a list of choices");
public static void main(String args[]) {
ReadingListDialog r = new ReadingListDialog(new javax.swing.JFrame(), true, true);
r.setSize(new Dimension(600,500));
r.show();

Try this
public void actionPerformed(ActionEvent e) {
DefaultTableModel bookModel = (DefaultTableModel)bookTable.getModel();
Object[] newRow = new Object[] {};
//int row = bookTable.getRowCount() + 1;
//for(int k = 0; k<row; k++)
//newRow[k] = "";
bookModel.addRow( newRow );

Table on TabbedPane ??

http://jfx.wikia.com/wiki/SwingComponents <- here are table and tabbed pane
i need your help.
im trying to attach JTable to JTabbedPane in JavaFX
how can i meke it?

You need to use your own cell editor.
In that, u need to overRide the fireCellEditingCanceled method to do what you want. Handling the focusLost event in the editor (JTextField) could work sometimes ;-)

JTable in JPanel in JTabbedPane in JScrollPane in JSplitPane problem

I have a JSplitPane with a divider in the center; of which the top is a JPanel and the bottom is a JScrollPane that contains a JTabbedPane, for which each tab contains a JPanel which contains a JTable.
When I move the divider up, so that it now takes up 75% of the JSplitPane, the JScrollPane and the JTabbedPane expand with the JSplitPane, but the JPanel that contains the JTable remains the same size that it had at the beginning.
What I would like to see is more rows of the JTable as I move the divider to give the JScrollPane more room.
Is there an easy way to keep all of the J components sizes in sync as the JSplitPane gets larger or smaller ? (JDK 1.3.1)

Hi,
The JPanels which you have inside each tab of the JTabbedPanes should have BorderLayout and the JScrollPanes which hold the JTables should be added with the BorderLayout.CENTER constraint. This will make sure that the JScrollPanes that contain the JTables occupy as much space as possible.
Hope this helps,
Ranga.

JTabbedPane modifying a JTable

Can a JTabbedPane change the internal layout of a component ?.
I have a pane with some labels and a JTable inside with a layout. It looks fine when setting it as the content pane of a frame, but when I add it to a JtabbedPane in a new tab the JTable looks wrong.
I am using a TableLayout, i don't know if it has something todo with the problem.
Any idea what i'm doing wrong ?

Any idea what i'm doing wrong ? Absolutely none.
How to create a [url http://www.physci.org/codes/sscce.jsp]Short, Self Contained, Correct (Compilable), Example

Can You Help Me ABout getSelectedRow in JTable

Can you help me on how to solve my problem about the getSelectedRow .....
I have one JComboBox and a SearchButton
... Once I selected an Item in a JComboBox, I will press the SearchButton
and then it will look up to the database and display it in the JTable..........
i used the getSelectedRow to print the value that I selected in the table...
like this...
public void mouseClicked(MouseEvent e) {
// Ilabas yung form
if(e.getClickCount() == 1 ) {
System.out.println(table1.getSelectedRow());
In the first press in the SearchButton and then clicking the row
, It will print the selected row...... but when i press again the SearchButton then clicking a row again........
there is a problem occured....... selectedRow is always -1, can you help me to solve this.....

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import java.util.*;
import javax.swing.plaf.metal.*;
import javax.swing.border.*;
import javax.swing.table.*;
import java.text.*;
import java.beans.*;
public class OpenProject extends JDialog {
     ResultSet rs, rs1, rs2, rs3;
     JFrame JFParentFrame; // create a JFrame
     JFrame OwnerFrame; // create a JFrame
     public JLabel proj_name;
     public JLabel proj = new JLabel("Project Name:");
     public JLabel form = new JLabel("Form Name");
     public JLabel lang = new JLabel("Language");
     public JComboBox form_lang = new JComboBox();
     public JComboBox form_name = new JComboBox();
     public JButton edit = new JButton("Edit");
     public JButton reload = new JButton("Search");
     public JButton def = new JButton("Set Text Default");
     public JButton langs = new JButton("Add Language");
     public JButton exit = new JButton("Exit");
     public JPanel panel1 = new JPanel ();
     public JTable table1, table2, table3,table4;
     public JScrollPane scrollPane1, scrollPane2, scrollPane3, scrollPane4;
     public JTabbedPane UITab,UITab1;
     Container c = getContentPane();
     Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
     public String column[][];
     public String strRow;
     public String strCol;
     public String strForm;
     public String strGetProj_id;
     public String strForm_lang;
     public String strForm_name;
     private boolean DEBUG = false;
     public int getLang;
     public int getForm;
     public int getDef_id;
     public int count2 = 0,count3 = 0,count4 = 0;
     public int row2 = 0,row3 = 0,row4 = 0;
     public int selectedRow1 = 0, selectedRow2 = 0;
     public DbBean db = new DbBean();
     public OpenProject(JFrame OwnerForm, String getProj_id) {
          super(OwnerForm,true);
               strGetProj_id = getProj_id;
          try{
               db.connect();
          } catch(SQLException sqlex) {
          } catch(ClassNotFoundException cnfex) {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
          } catch(Exception e) {
          // Para ito sa paglalagay sa dalawang combo box ng value.......
          try {
               rs = db.execSQL("Select * from mst_form where form_proj_id = "+strGetProj_id+"");
               while(rs.next()) {
                    form_name.addItem(rs.getString("form_name"));
                    //System.out.println(strForm);
          } catch(SQLException sqlex) {
          try {
               rs = db.execSQL("Select distinct from mst_form where form_proj_id = "+strGetProj_id+"");
               while(rs.next()) {
                    form_name.addItem(rs.getString("form_name"));
                    //System.out.println(strForm);
          } catch(SQLException sqlex) {
          try {
               int counts;
               rs = db.execSQL("Select * from mst_project where proj_id = "+strGetProj_id+"");
               while(rs.next()) {
                    counts = rs.getInt("proj_lang_id");
                    System.out.println(counts);
                    rs1 = db.execSQL("Select * from mst_language where lang_id = "+counts+"");
                    while (rs1.next()) {
                         form_lang.addItem(rs1.getString("lang_name"));
          } catch(SQLException sqlex) {
          edit.setActionCommand("edit");
          edit.addActionListener(actions);
          reload.setActionCommand("load");
          reload.addActionListener(actions);
          def.setActionCommand("default");
          def.addActionListener(actions);
          langs.setActionCommand("lang");
          langs.addActionListener(actions);
          exit.setActionCommand("exit");
          exit.addActionListener(actions);
          proj_name = new JLabel();
          proj_name.setBackground(new Color(255,255,255));
          form_name.setMaximumRowCount(5);
          form_name.setBackground(new Color(255,255,255));
          form_lang.setMaximumRowCount(5);
          form_lang.setBackground(new Color(255,255,255));
          proj.setBounds(20, 20,100,20);
          proj_name.setBounds(120, 20,250,20);
          form.setBounds(20, 50,100,20);
          form_name.setBounds(120, 50,150,20);
          lang.setBounds(300, 50,100,20);
          form_lang.setBounds(380, 50,150,20);
          reload.setBounds(560,50,80, 20);
          edit.setBounds(110,360,115,20);
          def.setBounds(230,360,115,20);
          langs.setBounds(350,360,115,20);
          exit.setBounds(470,360,115,20);
          panel1.add(getTable());
          panel1.setLayout(null);
          panel1.setBackground(Color.white);
          panel1.add(proj);
          panel1.add(proj_name);
          panel1.add(form);
          panel1.add(form_name);
          panel1.add(lang);
          panel1.add(form_lang);
          panel1.add(reload);
          panel1.add(def);
          panel1.add(langs);
          panel1.add(exit);
          panel1.add(edit);
          c.add(panel1);
          setSize(680,420);
          setTitle("Open Project");
          setLocation((screen.width - 590)/2,((screen.height - 280)/2) - 45);
     public JTabbedPane getTable() {
          UITab = new JTabbedPane();
          strForm_lang = form_lang.getSelectedItem().toString();
          strForm_name = form_name.getSelectedItem().toString();
          int count1=0;
          int row1=0;
          try {
               rs = db.execSQL("Select * from mst_default where def_proj_id = '"+strGetProj_id+"' AND def_category = 'Title'" );
               while(rs.next()) {
                    count1 += 1;
                    getDef_id = rs.getInt("def_id");
               column = new String[count1][2];
               rs1 = db.execSQL("Select form_id from mst_form WHERE form_name = '"+strForm_name+"'");
               while(rs1.next()) {
                    getForm = rs1.getInt("form_id");
                    System.out.println("getForm");
               rs2 = db.execSQL("Select lang_id from mst_language WHERE lang_name = '"+strForm_lang+"'");
               while(rs2.next()) {
                    getLang = rs2.getInt("lang_id");
                    System.out.println("getLang");
               rs3 = db.execSQL("Select * from mst_default a, mst_translation b WHERE a.def_form_id = '"+getForm+"' AND b.trans_lang_id = '"+getLang+"' AND a.def_proj_id = '"+strGetProj_id+"' AND b.trans_def_id = '"+getDef_id+"' AND a.def_category = 'Title' " );
               while(rs3.next()) {
                    column[row1][0] = "" + rs3.getString("display_name");          // rowNum ay kung ilan ang row na ilalabas
               column[row1][1] = "" + rs3.getString("translation"); // Default yung isang array ng column ko, kaya fixed
                    row1++;
               row1 = 0;
          } catch(SQLException sqlex) {
               sqlex.printStackTrace();
               System.exit(1);
          // End
          table1 = new JTable(new MyTableModel()){
          scrollPane1 = new JScrollPane(table1);
          UITab.setBounds(30,100,610,250);
          UITab.add("Title",scrollPane1);
          return UITab;
     class MyTableModel extends AbstractTableModel {
               // Pagawa ng header Coloumn
               String ColumnHeaderName[] = {
                    "Default Text",""+strForm_lang+" Translation"
               //End
               public int getColumnCount() {
                    //System.out.println("The Column Count is" + ColumnHeaderName.length);
     return ColumnHeaderName.length;
     public int getRowCount() {
          //System.out.println("The Row Count is" + column.length);
     return column.length;
     public String getColumnName(int col) {
                    //System.out.println("The Column Name is" + ColumnHeaderName[col]);
     return ColumnHeaderName[col];
     public Object getValueAt(int row,int col) {
          System.out.println("The value at row and column = " + column[row][col]);
     return column[row][col];
     public int getSelectedRow() {
          System.out.println("Integer" + column.length);
          return column.length;
     ActionListener actions = new ActionListener() {
          public void actionPerformed(ActionEvent ae) {
               String source = ae.getActionCommand();
               if (source == "load") {
                    table1.clearSelection();
                    panel1.add(getTable());
                    table1.addNotify();
                    repaint();
               } else if (source == "default") {
                    dispose();
                    TextDefaultForm form = new TextDefaultForm(OwnerFrame,JFParentFrame);
                    form.setVisible(true);
               } else if (source == "lang") {
                    dispose();
                    CreateProject lang = new CreateProject(JFParentFrame);
                    lang.setVisible(true);
               } else if (source == "exit") {
                    dispose();
               } else if (source == "edit") {
                    if (table1.getValueAt(table1.getSelectedRow(),table1.getSelectedColumn()) != null){
                         formLang lang = new formLang(OwnerFrame,strCol,strRow, strGetProj_id);
                         lang.setVisible(true);
     MouseListener MouseTableListener = new MouseListener() {
               public void mouseClicked(MouseEvent e) {
                    // Ilabas yung form
                    if(e.getClickCount() == 2 ) {
                         dispose();
                         int col_a = 0;
                         int col_b = 1;
                         selectedRow1 = table1.getSelectedRow();
                         Object objColumn1 = table1.getValueAt(selectedRow1, col_a);
                         Object objRow1 = table1.getValueAt(selectedRow1, col_b);
                         strCol = objColumn1.toString();
                         strRow = objRow1.toString();
                         formLang lang = new formLang(OwnerFrame,strCol,strRow,strGetProj_id);
                         System.out.println(selectedRow1);
                         System.out.println(strCol);
                         System.out.println(strRow);
                         lang.txtProj.setText(strCol);
                         lang.txtLang.setText(strRow);
                         lang.show();
                    } else if (e.getClickCount() == 1) {
                         table1.setSelectionBackground(Color.blue);
                         table1.setColumnSelectionAllowed(false);
                    table1.setRowSelectionAllowed(true);
                    table1.setFocusable(true);
                         int a = table1.getRowCount();
                         System.out.println("Row Count = " + a);
                         int sel = table1.getSelectedRow();
                         //if (sel == -1) return;
                         System.out.println("Selected Row = " + sel);
                         System.out.println(table1.isRowSelected(sel));
               public void mouseReleased(MouseEvent e) {
               public void mouseExited(MouseEvent e) {
               public void mouseEntered(MouseEvent e) {
               public void mousePressed(MouseEvent e) {
     //public static void main(String leo[]) {
          //OpenProject open = new OpenProject();
}

Changing background color in JTable, only changes one row at a time...

I'm trying to change the color of rows when the 5th column meets certain criteria. I think I'm very close, but I've hit a wall.
What's happening is the row will change color as intended when the text in the 5th column is "KEY WORD", but when I type "KEY WORD" in a different column it will set the first row back to the regular colors. I can easily see why it's doing this, everytime something is changed it rerenders every cell, and the listener only checks the cell that was just changed if it met the "KEY WORD" condition, so it sets every cell (including the previous row that still meets the condition) to the normal colors. I can't come up with a good approach to changing the color for ALL rows that meet the condition. Any help would be appreciated.
In this part of the CellRenderer:
        if (isSelected)
            color = Color.red;
        else
            color = Color.blue;
        if (hasFocus)
            color = Color.yellow;
        //row that meets special conditions
        if(row == specRow && col == specCol)
            color = color.white; I was thinking an approach would be to set them to their current color except for the one that meets special conditions, but the two problems with that are I can't figure out how to getColor() from the table, and I'm not sure how I would initially set the colors.
Here's the rest of the relevant code:
    public void tableChanged(TableModelEvent e)
        int firstRow = e.getFirstRow();
        int lastRow = e.getLastRow();
        int colIndex = e.getColumn();
        if(colIndex == 4)
            String value = (String)centerTable.getValueAt(firstRow, colIndex);
            // check for our special selection criteria
            if(value.equals("KEY WORD"))
                for(int j = 0; j < centerTable.getColumnCount(); j++)
                    CellRenderer renderer =
                        (CellRenderer)centerTable.getCellRenderer(firstRow, j);
                    renderer.setSpecialSelection(firstRow, j);
import javax.swing.table.*;
import javax.swing.*;
import java.awt.Component;
import java.awt.Color;
public class CellRenderer extends DefaultTableCellRenderer
    int specRow, specCol;
    public CellRenderer()
        specRow = -1;
        specCol = -1;
    public Component getTableCellRendererComponent(JTable table,
                                                   Object value,
                                                   boolean isSelected,
                                                   boolean hasFocus,
                                                   int row, int col)
        setHorizontalAlignment(JLabel.CENTER);
        Color color = Color.green;
        if (isSelected)
            color = Color.red;
        else
            color = Color.blue;
        if (hasFocus)
            color = Color.yellow;
        if(row == specRow && col == specCol)
            color = color.white;
        //setForeground(color);
        setBackground(color);
        setText((String)value);
        return this;
    public void setSpecialSelection(int row, int col)
        specRow = row;
        specCol = col;
}If I'm still stuck and more of my code is needed, I'll put together a smaller program that will isolate the problem tomorrow.

That worked perfectly for what I was trying to do, but I've run into another problem. I'd like to change the row height when the conditions are met. What I discovered is that this creates an infinite loop since the resizing triggers the renderer, which resizes the row again, etc,. What would be the proper way to do this?
Here's the modified code from the program given in the link. All I did was declare the table for the class, and modify the if so I could add the "table.setRowHeight(row, 30);" line.
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
public class TableRowRenderingTip extends JPanel
    JTable table;
    public TableRowRenderingTip()
        Object[] columnNames = {"Type", "Company", "Shares", "Price", "Boolean"};
        Object[][] data =
            {"Buy", "IBM", new Integer(1000), new Double(80.5), Boolean.TRUE},
            {"Sell", "Dell", new Integer(2000), new Double(6.25), Boolean.FALSE},
            {"Short Sell", "Apple", new Integer(3000), new Double(7.35), Boolean.TRUE},
            {"Buy", "MicroSoft", new Integer(4000), new Double(27.50), Boolean.FALSE},
            {"Short Sell", "Cisco", new Integer(5000), new Double(20), Boolean.TRUE}
        DefaultTableModel model = new DefaultTableModel(data, columnNames)
            public Class getColumnClass(int column)
                return getValueAt(0, column).getClass();
        JTabbedPane tabbedPane = new JTabbedPane();
        tabbedPane.addTab("Alternating", createAlternating(model));
        tabbedPane.addTab("Border", createBorder(model));
        tabbedPane.addTab("Data", createData(model));
        add( tabbedPane );
    private JComponent createAlternating(DefaultTableModel model)
        JTable table = new JTable( model )
            public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                Component c = super.prepareRenderer(renderer, row, column);
                // Alternate row color
                if (!isRowSelected(row))
                    c.setBackground(row % 2 == 0 ? getBackground() : Color.LIGHT_GRAY);
                return c;
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        table.changeSelection(0, 0, false, false);
        return new JScrollPane( table );
    private JComponent createBorder(DefaultTableModel model)
        JTable table = new JTable( model )
            private Border outside = new MatteBorder(1, 0, 1, 0, Color.RED);
            private Border inside = new EmptyBorder(0, 1, 0, 1);
            private Border highlight = new CompoundBorder(outside, inside);
            public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                Component c = super.prepareRenderer(renderer, row, column);
                JComponent jc = (JComponent)c;
                // Add a border to the selected row
                if (isRowSelected(row))
                    jc.setBorder( highlight );
                return c;
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        table.changeSelection(0, 0, false, false);
        return new JScrollPane( table );
    public JComponent createData(DefaultTableModel model)
        table = new JTable( model )
            public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                Component c = super.prepareRenderer(renderer, row, column);
                // Color row based on a cell value
                if (!isRowSelected(row))
                    c.setBackground(getBackground());
                    String type = (String)getModel().getValueAt(row, 0);
                    if ("Buy".equals(type)) {
                        table.setRowHeight(row, 30);
                        c.setBackground(Color.GREEN);
                    if ("Sell".equals(type)) c.setBackground(Color.YELLOW);
                return c;
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        table.changeSelection(0, 0, false, false);
        return new JScrollPane( table );
    public static void main(String[] args)
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
    public static void createAndShowGUI()
        JFrame.setDefaultLookAndFeelDecorated(true);
        JFrame frame = new JFrame("Table Row Rendering");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add( new TableRowRenderingTip() );
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
}Edited by: scavok on Apr 26, 2010 6:43 PM

Urgent help needed in jtable

PLEASE could someone help me look at this and see why the color of my data in a jtable cell is niot turning red when I press enter
THX
package mintest;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.table.*;
import com.borland.jbcl.layout.*;
import java.awt.color.*;
import javax.swing.event.*;
import java.awt.Image;
import javax.swing.ImageIcon;
import javax.swing.AbstractButton;
import javax.swing.JButton;
import java.awt.datatransfer.*;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import javax.swing.border.EtchedBorder;
import java.io.*;
import java.awt.print.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.border.Border;
import javax.swing.table.TableCellRenderer;
import java.awt.Color;
import java.awt.Component;
import javax.swing.table.DefaultTableCellRenderer;
public class VeckoSchema extends JPanel
private boolean DEBUG = false;
JTabbedPane tabbedPane;
Color rgdcolor2= new Color (0,153,255); //Definiera f?rgen f?r schema-,projekt- och l?nehuvudflikarna
Color rgdcolor1= new Color (0,102,255);
Color rgdcolor3= new Color (51,204,255); //Definiera f?rgen f?r schema-,projekt- och l?nehuvudflikarna
Color rgdcolor= new Color (0,0,153);
Color rgdcolor4= new Color (153,153,153);
JList list;
DefaultListModel listModel = new DefaultListModel();
ImageIcon icon= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\Bakgrundsbild2.jpg");
ImageIcon icon1= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\Save16.gif");
ImageIcon icon2= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\printer2.gif");
JButton spara;
JButton Ok_knapp = new JButton();
JPanel panel7;
TitledBorder title;
Border blackline;
JTable table = new JTable(new MyTableModel());
int x;int y;
Object data1;
//ColorRenderer renderer;
Color mincellColor= Color.red;
TableCellRenderer Renderer;
public VeckoSchema() {
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
private void jbInit() throws Exception
this.setBackground(rgdcolor2);
this.setLayout(null);
//Skapa tabellen
//JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setBounds(30, 40, 1000, 600);//(avst?nd fr?n v?nster sidan 49, avst?nd fr?n norr 39, bredd 144, h?jd 38));
this.add(scrollPane);
//TableCellRenderer weirdRenderer = new WeirdRenderer();
table.setCellSelectionEnabled(true);
table.requestFocus(true);
table.getInputMap().put(KeyStroke.getKeyStroke(
KeyEvent.VK_ENTER, 0),
"check");
table.getActionMap().put("check", new AbstractAction() {
public void actionPerformed(ActionEvent e) {
try {
System.out.println("BINGO");
x= table.getSelectedColumn() ;
y= table.getSelectedRow() ;
//System.out.println("markerad kolumn ?r" + table.getSelectedColumn()) ;
//System.out.println("markerad Rad ?r" + table.getSelectedRow()) ;
// table.setColumnSelectionAllowed(true);
data1 = table.getModel().getValueAt(
table.getSelectedRow(),
table.getColumnModel().getColumn(
table.getSelectedColumn()).getModelIndex());
System.out.println("markerad text inneh?ller" + data1);
x= table.getSelectedColumn() ;
y= table.getSelectedRow() ;
/* table.setDefaultRenderer(Object.class, new DefaultTableCellRenderer() {
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
System.out.println("hejsan hoppsan markerad text inneh?ller" + data1);
Component cell =super.getTableCellRendererComponent(table, value, isSelected,hasFocus, row, column);
if (row == y && column == x ) {
System.out.println("rad"+y);
System.out.println("column"+x);*/
//cell.setFont(new java.awt.Font("Dialog", 0, 20));
/* cell.setForeground(Color.red);
else
cell.setForeground(null);
return cell;
// ColorRenderer centerRenderer = new ColorRenderer();
// Use renderer on a specific column
/* TableColumn column = table.getColumnModel().getColumn(
table.getColumnModel().getColumn(
table.getSelectedColumn()).getModelIndex()
column.setCellRenderer( centerRenderer );
table.setDefaultRenderer(String.class, centerRenderer);*/
class table extends JTable {
ColorRenderer multiRenderer=new ColorRenderer();
table(MyTableModel tm)
super(tm);
public TableCellRenderer getCellRenderer(int row,int col) {
if (row == y && col == x) return multiRenderer;
else return super.getCellRenderer(row,col);
catch(Exception x) {
x.printStackTrace();
class MyTableModel extends AbstractTableModel {
String[] columnNames = {"",
"M?NDAG",
"TISDAG",
"ONSDAG",
"TORSDAG",
"FREDAG",
"L?RDAG",
"S?NDAG"};
Object[][] data = {
{"Anna Svensson","", "","Eji Eze", "","","",""},
{"","", "","", "Christopher ?kesson","Eji Eze","",""},
{"","", "","", "","Sara Eggert","",""},
{"Eji Eze","", "","", "","","",""},
{"Stefan Wielsel","", "","", "","","",""},
{"","", "","", "","","Anna Persson","Markus Nilsson"},
{"","Markus Nilsson", "Malin Mejby","", "","","",""},
{"","Stefan Wiesel", "","", "","","",""},
{"","Anna Svensson", "","", "","","",""},
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
/* Denna metod g?r det m?jligt att ?ndrar i tabellen*/
public boolean isCellEditable(int row, int col) {
if (col < 8) {
return false;
} else {
return true;
/*Denna metod g?r s? ?ndringarna som g?rs i en viss cell inte f?rsvinnar d? man l?mnar cellen*/
Object[][] value = {              {"Chiji Eze"},
int row= 3;
int col = 4;
public void setValueAt(Object value, int row, int col) {
/* if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
data[row][col] = value;
fireTableCellUpdated(row, col);
/* if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
/* private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
System.out.println();
System.out.println("--------------------------");*/
/*class MyCellColor extends DefaultTableCellRenderer
public MyCellColor()
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
JLabel result = null;
if(isSelected && value != null)
result = new JLabel(value.toString());
result.setOpaque(true);
result.setForeground(Color.blue);
System.out.println("Result "+result.getText());
System.out.println("Color is "+result.getForeground());
return result;
/* public TableCellRenderer getCellRenderer (int row, int column)
//seulement pour la premiere colonne
if (column == 0)
return Renderer;
// sinon le Renderer par d?faut
return super.getCellRenderer (row, column);
class ColorRenderer extends JTextArea implements TableCellRenderer{ //DefaultTableCellRenderer
Color testfarg;
public ColorRenderer( ){
testfarg= Color.red;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
System.out.println("hejsan hoppsan markerad text inneh?ller" + data1);
//Component cell =super.getTableCellRendererComponent(table, value, isSelected,hasFocus, row, column);
if(row==y && column == x)
setForeground(testfarg);
else
setBackground(null);
return this;

You really need to study this tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
After you have read it, take a look at this example, and tweak it to suit your needs:
import javax.swing.table.*;
import javax.swing.*;
public class Test {
public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new JScrollPane(new JTable(new MyTableModel())));
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
class MyTableModel extends AbstractTableModel {
private String columnNames[] = new String[] {
      "Name", "Checked"
private Class columnClasses[] = new Class[] {
      String.class, Boolean.class
private Object data[][] = new Object[][] {
      { "One", Boolean.TRUE },
      { "Two", Boolean.FALSE },
      { "Three", Boolean.FALSE },
      { "Four", Boolean.TRUE },
public int getColumnCount() {
    return columnNames.length;
public int getRowCount() {
    return data.length;
public Object getValueAt(int rowIndex, int columnIndex) {
    return data[rowIndex][columnIndex];
public Class getColumnClass(int columnIndex) {
    return columnClasses[columnIndex];
public String getColumnName(int columnIndex) {
    return columnNames[columnIndex];
public boolean isCellEditable(int rowIndex, int columnIndex) {
    if (columnIndex == 1)
      return true;
    else
      return false;
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
    data[rowIndex][columnIndex] = aValue;
}

How to Populate the JTable Object programatically with SQL Results

I'm wondering if someone could help me on how to populate the JTable Object with SQL Results wherein the Row of tjhe JTable object is automatically adjusted depending on how many records you have queried.
Thanks in advance and God bless! (",)
* frmMain.java
* Created on October 4, 2006, 6:15 AM
package tds;
import java.io.*;
import java.awt.Toolkit;
import javax.swing.JFrame;
import javax.imageio.*;
import javax.swing.JFrame;
import java.sql.*;
import javax.swing.table.DefaultTableModel;
* @author Dexter.Carlit
public class frmMain extends javax.swing.JFrame {
private Connection connection = null;
private DefaultTableModel model;
/** Creates new form frmMain */
public frmMain() {
initComponents();
/** 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() {
jSplitPane = new javax.swing.JSplitPane();
jScrollPane1 = new javax.swing.JScrollPane();
jPanel3 = new javax.swing.JPanel();
jScrollPane2 = new javax.swing.JScrollPane();
jTree1 = new javax.swing.JTree();
jTabbedPane1 = new javax.swing.JTabbedPane();
jPanel1 = new javax.swing.JPanel();
jPanel4 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
jTextField3 = new javax.swing.JTextField();
jLabel4 = new javax.swing.JLabel();
jTextField4 = new javax.swing.JTextField();
jPanel5 = new javax.swing.JPanel();
jScrollPane3 = new javax.swing.JScrollPane();
jGrid = new javax.swing.JTable();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jProgressBar1 = new javax.swing.JProgressBar();
jPanel2 = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowOpened(java.awt.event.WindowEvent evt) {
formWindowOpened(evt);
getAccessibleContext().setAccessibleName("frmMain");
jSplitPane.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
jSplitPane.setDividerLocation(200);
jSplitPane.setDividerSize(10);
jScrollPane2.setViewportView(jTree1);
org.jdesktop.layout.GroupLayout jPanel3Layout = new org.jdesktop.layout.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel3Layout.createSequentialGroup()
.add(jScrollPane2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 916, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jScrollPane2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 410, Short.MAX_VALUE)
jScrollPane1.setViewportView(jPanel3);
jSplitPane.setLeftComponent(jScrollPane1);
jPanel4.setBorder(javax.swing.BorderFactory.createTitledBorder(""));
jLabel1.setText("First Name:");
jLabel2.setText("Last Name:");
jLabel3.setText("Position :");
jLabel4.setText("Department:");
jPanel5.setBorder(javax.swing.BorderFactory.createTitledBorder("Search Results"));
jGrid.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
new String [] {
"LName", "FName", "Position", "Department", "Office No", "Local No", "Office Mobile No", "Home No", "MobileNo", "Email Address"
jGrid.setAutoResizeMode(javax.swing.JTable.AUTO_RESIZE_OFF);
jGrid.setColumnSelectionAllowed(true);
jGrid.setName("");
jGrid.setTableHeader(jGrid.getTableHeader());
jScrollPane3.setViewportView(jGrid);
jScrollPane3.getAccessibleContext().setAccessibleName("rset");
org.jdesktop.layout.GroupLayout jPanel5Layout = new org.jdesktop.layout.GroupLayout(jPanel5);
jPanel5.setLayout(jPanel5Layout);
jPanel5Layout.setHorizontalGroup(
jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jScrollPane3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 386, Short.MAX_VALUE)
jPanel5Layout.setVerticalGroup(
jPanel5Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jScrollPane3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 175, Short.MAX_VALUE)
jButton1.setText("Find");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton1MouseClicked(evt);
jButton2.setText("Clear");
jButton2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton2MouseClicked(evt);
org.jdesktop.layout.GroupLayout jPanel4Layout = new org.jdesktop.layout.GroupLayout(jPanel4);
jPanel4.setLayout(jPanel4Layout);
jPanel4Layout.setHorizontalGroup(
jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel4Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel5, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel4Layout.createSequentialGroup()
.add(jLabel1)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jTextField1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 343, Short.MAX_VALUE))
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel4Layout.createSequentialGroup()
.add(jLabel2)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jTextField2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 343, Short.MAX_VALUE)
.add(1, 1, 1))
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel4Layout.createSequentialGroup()
.add(jLabel3)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jTextField3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 138, Short.MAX_VALUE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jLabel4)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jTextField4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 138, Short.MAX_VALUE))
.add(jPanel4Layout.createSequentialGroup()
.add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 66, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jButton2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 66, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
.addContainerGap())
jPanel4Layout.linkSize(new java.awt.Component[] {jButton1, jButton2}, org.jdesktop.layout.GroupLayout.HORIZONTAL);
jPanel4Layout.setVerticalGroup(
jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel4Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel1)
.add(jTextField1))
.add(18, 18, 18)
.add(jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel2)
.add(jTextField2))
.add(16, 16, 16)
.add(jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel3)
.add(jTextField3)
.add(jLabel4)
.add(jTextField4))
.add(14, 14, 14)
.add(jPanel4Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jButton2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(jButton1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jPanel5, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, jProgressBar1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 438, Short.MAX_VALUE))
.addContainerGap())
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jProgressBar1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
jTabbedPane1.addTab("Search", jPanel1);
org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 458, Short.MAX_VALUE)
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 401, Short.MAX_VALUE)
jTabbedPane1.addTab("Directory", jPanel2);
jSplitPane.setRightComponent(jTabbedPane1);
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jSplitPane, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 675, Short.MAX_VALUE)
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jSplitPane)
pack();
}// </editor-fold>//GEN-END:initComponents
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
}//GEN-LAST:event_jButton1ActionPerformed
private void jButton2MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton2MouseClicked
jGrid.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null}
new String [] {
"LName", "FName", "Position", "Department", "Office No", "Local No", "Office Mobile No", "Home No", "MobileNo", "Email Address"
jGrid.updateUI();
}//GEN-LAST:event_jButton2MouseClicked
private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton1MouseClicked
try {
//Load and register SQL Server driver
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
//Establish a connection
Connection connection = DriverManager.getConnection("jdbc:microsoft:sqlserver://X.X.X.X:1433","MyAccount","MyPassword");
//Create a Statement object
Statement sql_stmt = connection.createStatement();
//Create a ResultSet object, execute the query and return a
// resultset
ResultSet rset = sql_stmt.executeQuery("SELECT * FROM EpxDirectory..Directory Order By LName");
// Populates a JTABLE Object
int i=0;
while (rset.next()){
String LName = rset.getString(1);
String FName = rset.getString(2);
String Position = rset.getString(3);
String Dept_Code = rset.getString(4);
String OffPhoneNo = rset.getString(5);
String LocalNo = rset.getString(6);
String OffMobileNo = rset.getString(7);
String HomePhoneNo = rset.getString(8);
String MobileNo = rset.getString(9);
String Email = rset.getString(10);
jGrid.updateUI();
jGrid.setValueAt(rset.getString(1).trim(),i,0);
jGrid.setValueAt(rset.getString(2).trim(),i,1);
jGrid.setValueAt(rset.getString(3).trim(),i,2);
jGrid.setValueAt(rset.getString(4).trim(),i,3);
jGrid.setValueAt(rset.getString(5).trim(),i,4);
jGrid.setValueAt(rset.getString(6).trim(),i,5);
jGrid.setValueAt(rset.getString(7).trim(),i,6);
jGrid.setValueAt(rset.getString(8).trim(),i,7);
jGrid.setValueAt(rset.getString(9).trim(),i,8);
jGrid.setValueAt(rset.getString(10).trim(),i,9);
i++;
//Close the ResultSet and Statement
rset.close();
sql_stmt.close();
//Close the database connection
connection.close();
System.out.println(Integer.toString(i) + " rows found");
} catch(Exception e) {
System.out.println("Failed to connect; Please view Stack Trace");
e.printStackTrace();
}//GEN-LAST:event_jButton1MouseClicked
private void formWindowOpened(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_formWindowOpened
}//GEN-LAST:event_formWindowOpened
public static void run(){
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
frmMain frmMain = new frmMain();
frmMain.setLocationRelativeTo(null); // Center the JFrame on the
frmMain.setVisible(true);
private void exitApplication() {
// try {
// //gui.putStatus("Closing the connection....please wait.....");
// if(connection != null) {
// // connection.close(); //Closing the connection object.
// } catch(SQLException ex) { //Trap SQLException
// //gui.putStatus(ex.toString());
System.exit(0); //Exit the aplication
* @param args the command line arguments
public static void main(String args[]) {
run();
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JTable jGrid;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JPanel jPanel5;
private javax.swing.JProgressBar jProgressBar1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JScrollPane jScrollPane3;
private javax.swing.JSplitPane jSplitPane;
private javax.swing.JTabbedPane jTabbedPane1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JTextField jTextField4;
private javax.swing.JTree jTree1;
// End of variables declaration//GEN-END:variables
}

Use code tags.
Don't mix GUI and JDBC together. Split them out into separate classes.
You have a good start, but you will need to loop through your resultset and also pull the ResultSet metaData for you column headings

JTable in JTabbedPane

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