Multiple selection in JTable for deletion

Dears,
I'm using Jdeveloper 9.0.3.3 on 8.1.7 Oracle DB.
I noticed that when a JTable is bound to a View object ==> only one row can be selected.
My situation -which I think is very common- I have a screen with JTable where I can edit a row and commit my updates or select multiple selection in JTable and delete them at once ; thats what I need.
It is very like the test of any application module but allow multiple selection and deletion in JTable for user's selected rows.
How this could be done in JClient?
Thankx in advance.

Thanks for your suggestions! They both would work as workarounds, I think. I tried another way:
Following code changes a TableBinding bound JTable's selection model to Multi select (thanks to Shailesh!!).
void setMultiSelectionModel(JTable tbl)
class MultiSelectionListListener implements javax.swing.event.ListSelectionListener
ListSelectionModel defSelModel;
MultiSelectionListListener(ListSelectionModel model)
defSelModel = model;
public void valueChanged(javax.swing.event.ListSelectionEvent e)
if (!e.getValueIsAdjusting())
ListSelectionModel listModel = (ListSelectionModel)e.getSource();
int leadIndex = listModel.getLeadSelectionIndex();
if (leadIndex == listModel.getAnchorSelectionIndex()
&& leadIndex == listModel.getMaxSelectionIndex()
&& leadIndex == listModel.getMinSelectionIndex())
//change currency on the bound iterator only if
//one row is being selected.
defSelModel.setSelectionInterval(leadIndex, leadIndex);
ListSelectionModel newModel = new DefaultListSelectionModel();
newModel.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
newModel.addListSelectionListener(new MultiSelectionListListener(tbl.getSelectionModel()));
tbl.setSelectionModel(newModel);
This fixes the bug if you select some rows and then select a row before the first selected one. Seems to work great.

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Multiple selection in JTable

Hi ,
The problem is to select multiple rows and columns in the JTable like that of a excel application and have the focus on the first column of the last row. for example if select cells from ( 1,1 ) to ( 4,4), after selection the focus should be in cell (4,1). i have written a prgram( which is below) which uses listSelection to find out the cells which are selected. i found out the cells which are selected also. but i do not know how to get the focus on that cell. i have attached the code below also.. i want to know whether there is any method which set the focus to the particular cell. Can the problem above can be solved in any other way..or a simpler way..
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
class myTable {
public static void main(String a[] ) {
          JFrame myframe = new JFrame();
          JTable jtable = new JTable(10,10);
          jtable.setCellSelectionEnabled(true);
     // add the listener to the table
ListSelectionModel listSelectionModel;
     OSSTableSelectionHandler obj = new OSSTableSelectionHandler(jtable,10,10);
     listSelectionModel = jtable.getSelectionModel();
listSelectionModel.addListSelectionListener(obj);
     myframe.getContentPane().add(jtable);
     myframe.show();
} // end of public static void main
} // end of class of myTable
class OSSTableSelectionHandler implements ListSelectionListener {
               JTable table;
     int row;
               int col;
OSSTableSelectionHandler(JTable tab, int r, int c ) {
     table = tab;
row = r;
          col = c;
public void valueChanged(ListSelectionEvent e) {
ListSelectionModel lsm = (ListSelectionModel)e.getSource();
               int i = 0,j = 0;
int firstIndex = e.getFirstIndex();
int lastIndex = e.getLastIndex();
boolean isAdjusting = e.getValueIsAdjusting();
if (lsm.isSelectionEmpty()) {
System.out.println(" Selection empty ");
} else {
// Find out which indexes are selected.
                    int maxrow = 0 ;
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
for ( i = minIndex; i <= maxIndex; i++) {
if (lsm.isSelectedIndex(i)) {
                              if ( maxrow < i )
                                   maxrow = i;
                              for (j = 0;j < col ;j++ )
                                   if ( table.isCellSelected(i,j) )
                                        System.out.println("The selected index is " + i + " " + j);
                         } // end of if
} // end of for
               // after this maxrow contains the last row that has beeb selected
               // this for loop is to find out the first column in the maxrow that is selected
               for (j = 0;j < col ;j ++ )
                    if ( table.isCellSelected(maxrow,j) )
                              break;
               // set the focus to the column ( maxrow, j )
} // end of else
} // end of fucn value changed
} // end of class OSSTableSelectionHandler

Whic cell is focused depends on where you begin your selection. The cell that you press your mouse first will be the focused one. Here is how I implement the mutiple selection functionality in a JTable as what MS Excel provides. This class is independent of my any other package. your table has to have column headers and a upper left JLabel corner(int the scroll pane containing the table) in order to make this class which I named TableSelectionAdapter function properly. You can revise and imporve it as you need, however.
package petrochina.riped.gui.table.tableadapter;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import java.awt.datatransfer.*;
import java.util.*;
* Enables multiple selection funtionality on <code>JTable</code>s.
* @author Guanglin Du,SEC of Riped, PetroChina,
* [email protected]
* @version 1.0 2002/09/16
public class TableSelectionAdapter extends MouseAdapter {
private String newline = "\n";
private boolean DEBUG = false;
// private boolean DEBUG = true;
private JTable myTable = null;
private boolean shiftKeyDown = false;
private boolean ctrlKeyDown = false;
private int firstSelectedColIndex = -1;
* Constructs with a <code>myTable</code> to simplify its reusability.
* Guanglin Du, 2002/09/19
* @param myTable     a <code>JTable</code>
public TableSelectionAdapter(JTable myTable) {
this.myTable = myTable;
initTableSelection();
* The initTableSelection method: initializes the row/column/cell
* selection functionality of the table.
* Guanglin Du, 2002/09/19
public void initTableSelection() {
getMyTable().setSelectionMode(
          ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
     //Cell selection
     myTable.addMouseListener(new MouseAdapter() {
     public void mousePressed(MouseEvent e) {
          myTable.setColumnSelectionAllowed(true);
          myTable.setRowSelectionAllowed(true);
     setMyKeyListener(); //shift/control key listener
     //column selection functionality
     JTableHeader myTableHeader = getMyTable().getTableHeader();
     myTableHeader.addMouseListener(new TableHeaderListener());
     //enalbles select-all functionality
     setSelectAllFunction();
* This setSelectAllFunction isto set the select-all functionality
* when the upper left corner label of the JTable is clicked.
* Note: JTable's parent JScrollPane has to be found.
* Guanglin Du, 2002/09/19
public void setSelectAllFunction() {
Container firstParent = getMyTable().getParent();
if (firstParent instanceof JViewport) {
     Container secondParent = firstParent.getParent();
     if (secondParent instanceof JScrollPane) {
     JScrollPane myScrollPane = (JScrollPane)secondParent;
     JLabel myLabel =
          (JLabel)myScrollPane.getCorner(JScrollPane.UPPER_LEFT_CORNER );
     myLabel.addMouseListener(this);
* Detects shift/control key state.
* DGL, 2002/09/18
public void setMyKeyListener() {
     getMyTable().addKeyListener(new KeyAdapter(){
     //keyPressed
     public void keyPressed(KeyEvent e){
          //shift key state
          if(e.isShiftDown())     shiftKeyDown = true;
          //control key state
          if(e.isControlDown()) ctrlKeyDown = true;
//keyReleased
     public void keyReleased(KeyEvent e){
          //shift key state
          if( !e.isShiftDown() ) shiftKeyDown = false;
          //control key state
          if( !e.isControlDown() ) ctrlKeyDown = false;
* Adds the table header listener to enable single/multiple column selection.
* DGL, 2002/09/17
public void setTableHeaderListener() {
     JTableHeader myTableHeader = myTable.getTableHeader();
     myTableHeader.addMouseListener(new TableHeaderListener());
* Returns the <code>myTable</code> property value.
* @return myTable the table that this class handles
public JTable getMyTable() {
return myTable;
* Sets <code>myTable</code> property value of this class.
* @param myTable the table that this class handles
public void setJTable(JTable myTable) {
     this.myTable = myTable;
* Returns the shiftKeyDown property value.
* @return boolean, Guanglin Du, 2002/09/18
public boolean getShiftKeyDown(){
     return shiftKeyDown;
* Return the ctrlKeyDown property value.
* @return boolean, Guanglin Du, 2002/09/18
public boolean getCtrlKeyDown(){
     return ctrlKeyDown;
* This inner class handles the column selection, the same
* behavior as MS Excel.
* Guanglin Du, 2002/09/18
class TableHeaderListener extends MouseAdapter {
public void mousePressed(MouseEvent e) {
     stopLatestCellEditing(); //To save the data being edited
     if(DEBUG) System.out.print("mousePressed on ");
     JTableHeader myColumnHeader = (JTableHeader)e.getSource();
     Point myPoint = e.getPoint();
     int selectedColIndex = myColumnHeader.columnAtPoint(myPoint);
     if(DEBUG) System.out.print("the header of column "
          + selectedColIndex+newline);
     JTable table = myColumnHeader.getTable();
     //The following column selection methods work only if these
     //properties are set this way
     table.setColumnSelectionAllowed(true);
     table.setRowSelectionAllowed(false);
     int myRowCount = table.getRowCount();
     //makes this table focused, so that setMyKeyListener method can
     //listen for shift/control KeyEvent
     table.requestFocus();
//     System.out.println("myRowCount = " + myRowCount);
     if( getShiftKeyDown() ){
     table.clearSelection();
     table.setRowSelectionInterval(0,myRowCount-1);
     table.setColumnSelectionInterval(selectedColIndex,selectedColIndex);
     if(firstSelectedColIndex > -1) {
          table.addColumnSelectionInterval(firstSelectedColIndex, selectedColIndex);
          firstSelectedColIndex = -1;//restore to -1
     } else if( getCtrlKeyDown() ) {
     table.addRowSelectionInterval(0,myRowCount-1);
     table.addColumnSelectionInterval(selectedColIndex,selectedColIndex);
     } else {
     table.clearSelection();
     table.setRowSelectionInterval(0,myRowCount-1);
     table.setColumnSelectionInterval(selectedColIndex,selectedColIndex);
     if(DEBUG) System.out.println("shiftKeyDown = " + shiftKeyDown
          +";"+" ctrlKeyDown = " + ctrlKeyDown);
     //saves the first selected column index
     firstSelectedColIndex = selectedColIndex;
* MouseAdapter implemenation.
* mousePressed: sets the select-all functionality
* when upper left corner label of the table is clicked
* Guanglin Du, 2002/09/18
public void mousePressed(MouseEvent e) {
     if(DEBUG) System.out.println("Select all");
     stopLatestCellEditing();//To save the data in editing
     getMyTable().selectAll();
* Triggers the latest <code>ActionEvent</code> in a table cell to save
* the latest data. Or, the newly input data will not be stored into the table
* model and cannot be retrieved.
public void stopLatestCellEditing() {
int editingRow = getMyTable().getEditingRow();
int editingCol = getMyTable().getEditingColumn();
if (editingRow != -1 && editingCol != -1){
     TableCellEditor cellEditor =
     getMyTable().getCellEditor(editingRow, editingCol);
     cellEditor.stopCellEditing();
Here is how you can use it in your coding(where myTable is a JTable instance you create):
     /* Adds TableSelectionAdapter to enable all kinds of selection action. */
     TableSelectionAdapter tableSelect = new TableSelectionAdapter(myTable);

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model.removeRow(rows);
like this
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Multiple selection in JTable for deletion

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