Java Swing: JPanel

ListSelectionListener is about list

list.getSelectedIndex() will return the index of selected item in the list

check for exmple this code:
http://www.daniweb.com/software-development/java/threads/177692

you may have several lists - and determine within the method which of the lists was clicked
- that would be analog of the column

this is about the JTable and List Selection Listener

http://www.exampledepot.com/egs/javax.swing.table/SelEvent.html

Yes, I was wrong initially - of course you can use for JTable, like in this code from above link:

SelectionListener listener = new SelectionListener(table);
table.getSelectionModel().addListSelectionListener(listener);
table.getColumnModel().getSelectionModel()
    .addListSelectionListener(listener);

public class SelectionListener implements ListSelectionListener {
    JTable table;

    // It is necessary to keep the table since it is not possible
    // to determine the table from the event's source
    SelectionListener(JTable table) {
        this.table = table;
    }
    public void valueChanged(ListSelectionEvent e) {
        // If cell selection is enabled, both row and column change events are fired
        if (e.getSource() == table.getSelectionModel()
              && table.getRowSelectionAllowed()) {
            // Column selection changed
            int first = e.getFirstIndex();
            int last = e.getLastIndex();
        } else if (e.getSource() == table.getColumnModel().getSelectionModel()
               && table.getColumnSelectionAllowed() ){
            // Row selection changed
            int first = e.getFirstIndex();
            int last = e.getLastIndex();
        }

        if (e.getValueIsAdjusting()) {
            // The mouse button has not yet been released
        }
    }
}

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check this - it shows simpler way to detemrnin which cell was clicked:
http://stackoverflow.com/questions/5044222/how-can-i-determine-which-cell-in-a-jtable-was-selected

These are two methods offered in the above link which use MouseListener - seems to be easier
than wit ListSelectionListemerr

jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
    @Override
    public void mouseClicked(java.awt.event.MouseEvent evt) {
        int row = jTable1.rowAtPoint(evt.getPoint());
        int col = jTable1.columnAtPoint(evt.getPoint());
        if (row >= 0 && col >= 0) {
            ......

        }
    }
});

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jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
    jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
       @Override
       public void mouseClicked(java.awt.event.MouseEvent evt) {
           ...
           int row = jTable1.getSelectedRow();
           int col = jTable1.getSelectedColumn());
           if (evt.getClickCount() > 1) { // double-click etc...
              ...

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Can you tell me what exactly the above 2 methods are doing?

I mean, how are they different from each other?

So where dies the above code go? In the constructor?

Yes, in the way they sjhow it - it goes into the constructor

Great. Thanks!

I don't like this anonymous classes
I would rather declare on top fo the class implements MouseListenere

then I'd say in constructo
jTbale1.addMouseListener(this);



and then in

public void mouseClicled(MouseEvent e){

if(e.getSource().equals(jTable1)){
 int row = jTable1.rowAtPoint(e.getPoint());
        int col = jTable1.columnAtPoint(e.getPoint());
        if (row >= 0 && col >= 0) {
            ......

        }

But most folks use anonymouis classes.


 

jTbale1.addMouseListener(this);

the above line of code is not working. It says the argument is not applicable.

Did you say at the top "implements MouseListener" ?

Oops! Thanks!

And you need to define all methods of MouseListener

just paste these:
 public void mousePressed(MouseEvent me){}

 public void mouseEntered(MouseEvent me){}

public void mouseExited(MouseEvent me){}

public void mouseReleased(MouseEvent me){}

and in this ione
put real code:

public void mouseClicked() {

///stuuff

}