Whenever a selection is made, the ListSelectionEvent are fired.
The method valueChanged() in the interface ListSelectionListener is called whenever a new selection has been made.
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class JTableListSelectionListener {
public static void main(String[] a) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JTable table;
String[] columnTitles = { "A", "B", "C", "D" };
Object[][] rowData = { { "11", "12", "13", "14" }, { "21", "22", "23", "24" },
{ "31", "32", "33", "34" }, { "41", "42", "44", "44" } };
table = new JTable(rowData, columnTitles);
table.setCellSelectionEnabled(true);
ListSelectionModel cellSelectionModel = table.getSelectionModel();
cellSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
cellSelectionModel.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
String selectedData = null;
int[] selectedRow = table.getSelectedRows();
int[] selectedColumns = table.getSelectedColumns();
for (int i = 0; i < selectedRow.length; i++) {
for (int j = 0; j < selectedColumns.length; j++) {
selectedData = (String) table.getValueAt(selectedRow[i], selectedColumns[j]);
}
}
System.out.println("Selected: " + selectedData);
}
});
frame.add(new JScrollPane(table));
frame.setSize(300, 200);
frame.setVisible(true);
}
}