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/* Listing3812.java */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
public class Listing3812
extends JFrame
{
public Listing3812()
{
super("JTree 2");
addWindowListener(new WindowClosingAdapter(true));
//Einfaches TreeModel bauen
DefaultMutableTreeNode root, child, subchild;
root = new DefaultMutableTreeNode("Root");
for (int i = 1; i <= 5; ++i) {
String name = "Child-" + i;
child = new DefaultMutableTreeNode(name);
root.add(child);
for (int j = 1; j <= 3; ++j) {
subchild = new DefaultMutableTreeNode(name + "-" + j);
child.add(subchild);
}
}
//JTree erzeugen und Einfachselektion aktivieren
JTree tree = new JTree(root);
TreeSelectionModel tsm = new DefaultTreeSelectionModel();
tsm.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.setSelectionModel(tsm);
tree.setRootVisible(true);
//JTree einf�gen
Container cp = getContentPane();
cp.add(new JScrollPane(tree), BorderLayout.CENTER);
//TreeSelectionListener hinzuf�gen
tree.addTreeSelectionListener(
new TreeSelectionListener()
{
public void valueChanged(TreeSelectionEvent event)
{
TreePath tp = event.getNewLeadSelectionPath();
if (tp != null) {
System.out.println(" Selektiert: " + tp.toString());
} else {
System.out.println(" Kein Element selektiert");
}
}
}
);
}
public static void main(String[] args)
{
try {
Listing3812 frame = new Listing3812();
frame.setLocation(100, 100);
frame.setSize(250, 200);
frame.setVisible(true);
} catch (Exception e) {
}
}
}
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