SOURCE CODE for SiteSelector applet which provides buttons to different URLs

// load a document from a URL when a button is pressed

import java.applet.*;
import java.awt.*;
import java.net.*;

public class SiteSelector extends Applet {

	Site siteList[];	// array of sites
	
   public void init()
     	{
		siteList = new Site[3];
		siteList[0] = new Site ("Wayne's World", "http://csc.ColumbusState.edu/summers");
		siteList[1] = new Site ("CS335 Web Programming", "http://rex.nmhu.edu");
		siteList[2] = new Site ("NMHU Computer Science Department", "http://cs.nmhu.edu");

		for (int i = 0; i < siteList.length; i++)
			add( new Button (siteList[i].getTitle()) );
	}

   public boolean action( Event e, Object o)
	{
		if ( e.target instanceof Button )
		{
			String title;
			URL location;
			for (int i = 0; i < siteList.length; i++)
			{
				title = siteList[i].getTitle();
				location = siteList[i].getLocation();

				if (title.equals (e.arg.toString() ) )
				{
					gotoSite (location);
					showStatus ("going to URL " + location);
					return true;
				}
			}
		}
		return false; // event not handled yet
	}

	public void gotoSite (URL loc)
	{
	// this must be executed in a browser such as Netscape
		getAppletContext().showDocument (loc);
	}
}

class Site extends Button
{
	private String title;
	private URL location;

	public Site (String siteTitle, String siteLocation)
	{
		title = siteTitle;

		try
		{	location = new URL (siteLocation); }
		catch (MalformedURLException e)
		{	System.err.println( "Invalid URL: " + siteLocation ); }

	}

	public String getTitle()	{ return title; }
	public URL getLocation()	{ return location; }
}