básicamente, usted tiene que Iterate
dentro JTree
, pero TreeSelectionListener
pueden los rendimientos de valor interesante, por ejemplo
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
public class TreeSelectionRow {
public TreeSelectionRow() {
JTree tree = new JTree();
TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {
@Override
public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
JTree treeSource = (JTree) treeSelectionEvent.getSource();
System.out.println("Min: " + treeSource.getMinSelectionRow());
System.out.println("Max: " + treeSource.getMaxSelectionRow());
System.out.println("Lead: " + treeSource.getLeadSelectionRow());
System.out.println("Row: " + treeSource.getSelectionRows()[0]);
}
};
tree.addTreeSelectionListener(treeSelectionListener);
String title = "JTree Sample";
JFrame frame = new JFrame(title);
frame.add(new JScrollPane(tree));
frame.setSize(300, 150);
frame.setVisible(true);
}
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
TreeSelectionRow treeSelectionRow = new TreeSelectionRow();
}
});
}
}
Gracias Anon. –