import java.awt.*;

import javax.swing.*;

import stathelp.*;

public class HelpTreeExample

{

public static void main(String[] args)

{

String[][][] firstTree =

{ { {"root", "country I", null}},

{ {"country I", "family A", null},

{"country I", "family B", null} },

{ {"family A", "child 1", "childA1.html"},

{"family A", "child 2", "childA2.html"},

{"family B", "child 1", "childB1.html"},

{"family B", "child 2", "childB2.html"} } };

String[][][] secondTree =

{ { {"root", "Science", null} },

{ {"Science", "Statistics", null},

{"Science", "Computer Science", null} },

{ {"Statistics", "Applied Statistics", null},

{"Computer Science", "Design Patterns",

"DesignPatterns.html"}},

{ {"Applied Statistics", "Linear Regression",

"LinearRegression.html"},

{"Applied Statistics", "Nonparametric Regression",

"NonparametricRegression.html"} } };

String[][][][] testTreeAttribute = {firstTree, secondTree};

// Note: HTML files should be put in the directory "C:/resources"!!

DefaultHelper helper1 = new DefaultHelper(

testTreeAttribute,

new String[] {"Families", "Science"}, "C:/resources");

helper1.setVisible(true);

JFrame jf = new JFrame();

jf.setSize(800, 600);

JDesktopPane desktopPane = new JDesktopPane();

desktopPane.add(helper1);

JPanel contentPane = (JPanel) jf.getContentPane();

contentPane.setLayout(new BorderLayout());

contentPane.add(desktopPane, BorderLayout.CENTER);

jf.setVisible(true);

}

}

Results: