Prentice.Hall.Introduction.to.Java.Programming,.Brief.Version.9th.(2014).[sharethefiles.com]

All the methods related to path selection are also defined in the
TreeSelectionModel interface, which will be covered in §40.12,
“TreePath and TreeSelectionModel.”
Listing 40.12 gives an example that creates four trees: a default
tree using the no-arg constructor, a tree created from an array
of objects, a tree created from a vector, and a tree created from
a hash table, as shown in Figure 40.21. Enable the user to
dynamically set the properties for rootVisible, rowHeight, and
showsRootHandles.
Figure 40.21
You can dynamically set the properties for rootVisible, rowHeight,
and showRootHandles in a tree.
Listing 40.12 SimpleTreeDemo.java
1 import java.awt.*;
2 import java.awt.event.*;
3 import javax.swing.*;
4 import javax.swing.event.*;
5 import java.util.*;
6
7 public class SimpleTreeDemo extends JApplet {
8 // Create a default tree
9 private JTree jTree1 = new JTree();
10
11 // Create a tree with an array of Objects.
12 private JTree jTree2 = new JTree(new String[]
13 {"dog", "cow", "cat", "pig", "rabbit"});
14
15 // Create a tree with a Hashtable
16 private Vector vector = new Vector(Arrays.asList(
17 new Object[]{"red", "green", "black", "white", "purple"}));
18 private JTree jTree3 = new JTree(vector);
19
20 private Hashtable hashtable =
21 new Hashtable();
22 private JTree jTree4;
23
24 // Create a combo box for selecting rootVisible
25 private JComboBox jcboRootVisible = new JComboBox(
26 new String[]{"false", "true"});
27
28 // Create a combo box for selecting showRootHandles
33