Please help about JTable...thanks

Question

HI everyone!
Please tell me how to write a ACTIONLISTENER for a JTABLE?
JTABLE table;
Object[][] myArray = {  {"Mary", new Integer(5)},
{"Alison", new Integer(3)},
{"Angela", new Integer(1)}
String[] columnNames = {"First Name", "Scores"};
table = new JTable(myArray, columnNames);
how do you write a actionlistener for a JTable?
thanks

Answer 1

One of the things I'd recommend is reading the tutorial on "How to use Tables" at the Sun website. Unless you have a button or something like that on the container the JTable is in, I don't think you want an ActionListener. One of the things you can do is set up a ListSelectionListener. It allows you to do something when a value changes in the ListSelectionModel. When you select rows in a JTable, a ListSelectionModel is created. Retrieve the ListSelectionModel from your JTable, and add a listener to it, something like:
JTable runTable = new JTable(yourTableModel);
runTable.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION); // set mode
//or use default
ListSelectionModel rowSM = runTable.getSelectionModel();
rowSM.addListSelectionListener(new TimeSelectionListener());
class TimeSelectionListener implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
//Ignore extra messages.
if (e.getValueIsAdjusting()) return;
ListSelectionModel lsm = (ListSelectionModel)e.getSource();
if (lsm.isSelectionEmpty()) {
// ...//no rows are selected
} else {
... // If some rows are selected, do something here!!!
I hope this helps.