HelpDemo.java Source code

Introduction

Here is the source code for HelpDemo.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.io.IOException;

/**
 * ExecDemoHelp shows how to use the Win32 "start" command to load a help file.
 * Written long before JavaHelp API, which probably should be use instead.
 */
public class HelpDemo {
    /** A simple main program, to show calling help(). */
    public static void main(String[] av) throws IOException {
        new HelpDemo().help();
        return;
    }

    /**
     * help() -- start a help viewer. On Win32, we use the "start" command. For
     * UNIX, we'll try for Netscape or HotJava in the user's path. For the Mac,
     * not sure what we'll do.
     */
    public void help() throws IOException {

        // A Runtime object has methods for dealing with the OS
        Runtime r = Runtime.getRuntime();
        // A process object tracks one external running process
        Process p;

        // Start Netscape from Java Applications (not Applets though)
        p = r.exec("c:/windows/command/start.exe HelpDemo.htm");

        return;
    }
}

//helpdemo.htm
/*
    
    
<H1>Help</H1>
<P>Here is the help for our demo application:
<P>This page still under construction, sorry.
    
*/