Subject: From: Date:

JAVA enum help req Mark Gilmore Fri, 24 Mar 2000 14:43:49 -0500

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Hi all,
Could use some JAVA help here:
I have one JAVA applet that handles all I/O to/from ECS, and
sends messages to other applets in it's web page as appropriate.
In this applet's start() logic, I enumerate to find these applets
and check their parameters:

Applet		applet;
Itm_stt		itm_stt_applet;
String		par;
enum = getAppletContext().getApplets();
while (enum.hasMoreElements())
	{
	applet = (Applet)enum.nextElement();
	par = applet.getParameter("Item");	// see if this is an "Itm_stt"
applet:
	if (par != null)			// "Item" par defined ?
		{
*		itm_stt_applet = (Itm_stt)applet;	// CRASHES here
		...
		}
	}

BUT when I have a number of applets in a page, it APPEARS that
the other applets are not always "ready" (at least that's what I
suspect). The line above marked with an astrisk crashes as follows:
	java.lang.ClassCastException
	  at Ecsio.start(Compiled Code)
	* at
netscape.applet.DerivedAppletFrame$StartAppletEvent.dispatch(Compiled
Code)
	  at java.awt.EventDispatchThread$EventPump.dispatchEvents(Compiled
Code)
	  at java.awt.EventDispatchThread.run(Compiled Code)
	  at
netscape.applet.DerivedAppletFrame$AppletEventDispatchThread.run(Compiled
Code)

I have verified that the applet IS the one desired.
Any help would be greatly appreciated.

BTW, I AM making great progress with the TCP/IP API
(it's just taking more time than I would have hoped).
-- 
Mark Gilmore
Omnipotence (ECS home automation software)
http://www.usit.com/omnip
423-745-0026

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