Example usage for javax.swing.tree DefaultMutableTreeNode getLastLeaf

Introduction

In this page you can find the example usage for javax.swing.tree DefaultMutableTreeNode getLastLeaf.

Prototype

public DefaultMutableTreeNode getLastLeaf() 

Source Link

Document

Finds and returns the last leaf that is a descendant of this node -- either this node or its last child's last leaf.

Usage

From source file:TreeIt.java

public TreeIt() {
    JFrame f = new JFrame();
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Calendar");
    DefaultMutableTreeNode months = new DefaultMutableTreeNode("Months");
    root.add(months);//from  w ww .  j  av a2s .  c o m
    String monthLabels[] = { "January", "February", "March", "April", "May", "June", "July", "August",
            "September", "October", "November", "December" };
    for (int i = 0, n = monthLabels.length; i < n; i++)
        months.add(new DefaultMutableTreeNode(monthLabels[i]));
    DefaultMutableTreeNode weeks = new DefaultMutableTreeNode("Weeks");
    root.add(weeks);
    String weekLabels[] = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };
    for (int i = 0, n = weekLabels.length; i < n; i++)
        weeks.add(new DefaultMutableTreeNode(weekLabels[i]));
    JTree jt = new JTree(root);
    jt.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            TreePath path = e.getPath();
            System.out.println("Picked: " + path.getLastPathComponent());
            Object elements[] = path.getPath();
            for (int i = 0, n = elements.length; i < n; i++) {
                System.out.print("->" + elements[i]);
            }
            System.out.println();
        }
    });

    DefaultMutableTreeNode lastLeaf = root.getLastLeaf();
    TreePath path = new TreePath(lastLeaf.getPath());
    jt.setSelectionPath(path);

    jt.setCellRenderer(new MyCellRenderer());

    JScrollPane jsp = new JScrollPane(jt);
    Container c = f.getContentPane();
    c.add(jsp, BorderLayout.CENTER);
    f.setSize(250, 250);
    f.show();
}

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