Article View: borland.public.jbuilder.java.swing
Article #1781Re: Setting a custom Base class when creating a File/New/Frame (problem)
From: John McGrath [TeamB]
Date: Mon, 21 Jul 2003 06:50
Date: Mon, 21 Jul 2003 06:50
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1589 bytes
On 7/19/2003 at 2:11:51 PM, Kostas wrote: > I make a class that extends JInternalFram, the class is called > MicraInternalFrame. When i create a new Frame i set the base class to > be MicraInternalFrame instead of JInternalFrame. At the time i click > to the design tab of the new frame i get this message... > > 1)Failed to create live instance for variable 'this'. > MicraInternalFrame 2)class java.lang.NullPointerException null Your class is not a JavaBean (which requires that it have a no-argument constructor), so JBuilder does not know how to create one. -- Regards, John McGrath [TeamB]
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 111d45,3468875c5b81a96e X-Google-Attributes: gid111d45,public X-Google-ArrivalTime: 2003-07-21 00:01:47 PST From: "John McGrath [TeamB]" <ng-b@jpmcgrath.net> Subject: Re: Setting a custom Base class when creating a File/New/Frame (problem) Newsgroups: borland.public.jbuilder.java.swing References: <3f1989ed@newsgroups.borland.com> User-Agent: XanaNews/1.15.3.1 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 NNTP-Posting-Host: 151.197.210.86 Message-ID: <3f1b8d40$1@newsgroups.borland.com> Date: 20 Jul 2003 23:50:40 -0700 X-Trace: newsgroups.borland.com 1058770240 151.197.210.86 (20 Jul 2003 23:50:40 -0700) Lines: 17 X-Authenticated-User: jpmcgrath Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-08!supernews.com!priapus.visi.com!news-out.visi.com!petbe.visi.com!newsfeed.wirehub.nl!news.kweb.on.ca!newsgroups.borland.com!not-for-mail