[3968] in java-interest
Applets running applets
daemon@ATHENA.MIT.EDU (Gregg Helt)
Wed Dec 6 00:25:16 1995
Date: Tue, 5 Dec 1995 19:08:35 -0800 (PST)
From: Gregg Helt <gregg@fruitfly.berkeley.edu>
To: java-interest@java.sun.com
Can applets easily run other applets?
What I'm really trying to do is get existing applets to display in a
toplevel window (not within the browser window). I've gotten as far as
bringing up toplevel windows from an applet, but haven't been able to get
the applet to draw in them. Can anyone point me to sample source code?
Even if this works for individual applets, it would be nice to be able to
do this without mucking around in each applet. So I thought I'd try to
have an applet create a new Frame, then display another applet within it,
like this (modelled after a java program main):
public
class TestAppletFrame extends Applet {
public TestAppletFrame() {
Frame f = new Frame("appletframe");
Applet_class app = new Applet_class();
app.init();
app.start();
f.add(app);
f.resize(300,300);
f.show();
}
}
where Applet_class is the applet to be displayed in the frame.
I'm gettin java.lang.NullPointerException errors at run-time though. Am I
missing something obvious? Is this completely the wrong way to do this?
I expect there's a better OO approach...
thanks,
Gregg Helt
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