Basic program flow

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From	Christopher Pisz <cpisz@austin.rr.com>
Newsgroups	comp.lang.java.gui
Subject	Basic program flow
Date	Tue, 01 Oct 2013 05:08:45 -0500
Organization	A noiseless patient Spider
Lines	96
Message-ID	<l2e6ve$557$1@dont-email.me> (permalink)
Mime-Version	1.0
Content-Type	text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding	7bit
Injection-Date	Tue, 1 Oct 2013 10:08:47 +0000 (UTC)
Injection-Info	mx05.eternal-september.org; posting-host="4d7f99cc7b9fd97e4c67716bd6e1e29c"; logging-data="5287"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18aE5l69WJusk39kZBKLbuNOvyNbghvusg="
User-Agent	Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20
Cancel-Lock	sha1:55ka3Mrs9+gwOFGNR0YV9kj5a6o=
Xref	csiph.com comp.lang.java.gui:5370

Show key headers only | View raw

I just started trying to learn java coming from C++. Being a C++ guy, I 
must understand the details.


What is going on, as I debug through the static main method, my window 
is created and it is displayed, and responds. Yet, the debugger steps 
out of main...Which I would think exits the program.

Indeed I see threads in the debugger that look like it is in some built 
in method for exiting the program.

Did I make a new thread when I created a frame? If so, at what point? 
Why doesn't the program exit after main is done? What keeps it alive? 
Remember I am coming from the C Windows API and am used to a windows 
message pump...i.e. a loop where the program is executing, by 
dispatching messages.

Did I make a basic frame correctly? There seems to be 900 different ways 
of doing it.




I made this, doing my best to follow tutorials on the net:
----------------------------------------------------------------------------
import java.awt.*;
import java.awt.event.*;

import domain.*;

public class Application extends Panel implements WindowListener
{
	///
	private static final long serialVersionUID = 5321647437323807661L;

	///
	public static void main(String[] args)
	{		
		Frame frame = new Frame("Application Frame");
		Application application = new Application();
		frame.addWindowListener(application);
		application.initialize();
		
		frame.setSize(300,200);
         frame.setLocationByPlatform(true);
		frame.add("Center", application);
		frame.pack();
		frame.setVisible(true);
	}
	
	///
	public void initialize()
	{
		Card card = new Card();
		card.SetName("Shenanigans");
		
		System.out.format("The card name is: %s %n", card.GetName());
		System.out.print("Done.");
	}
	
	///
	public void windowDeactivated(WindowEvent e)
	{
	}
	
	///
	public void windowDeiconified(WindowEvent e)
	{
	}
	
	///
	public void windowIconified(WindowEvent e)
	{
	}
	
	///
	public void windowOpened(WindowEvent e)
	{
	}
	
	///
	public void windowActivated(WindowEvent e)
	{	
	}
	
	///
	public void windowClosed(WindowEvent e)
	{
	}

	///
	public void windowClosing(WindowEvent e)
	{
	    System.exit(0);
	}
}

Back to comp.lang.java.gui | Previous | Next — Next in thread | Find similar

Thread

Basic program flow Christopher Pisz <cpisz@austin.rr.com> - 2013-10-01 05:08 -0500
  Re: Basic program flow Joerg Meier <joergmmeier@arcor.de> - 2013-10-01 12:44 +0200
    Re: Basic program flow Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-10-03 07:51 +0200
  Re: Basic program flow markspace <markspace@nospam.nospam> - 2013-10-01 09:17 -0700
    Re: Basic program flow Lew <lewbloch@gmail.com> - 2013-10-17 16:55 -0700
  Re: Basic program flow Jeff Higgins <jeff@invalid.invalid> - 2013-10-01 13:00 -0400
  Re: Basic program flow Roedy Green <see_website@mindprod.com.invalid> - 2013-10-01 21:47 -0700

csiph-web