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I use netbeans 11 with openjdk 11 in Ubuntu 18.04 LTS. I want to run applet program, even though it is deprecated, it is part of my college assignment ☚ī¸
I know that to run applet, you need jdk7/8/older, but previously in Eclipse & IntelliJ I was able to run applet with jdk10, Windows 8.1, so I hope in this case there should be no issues at all.
I followed instructions given here : Running a java applet from netbeans? I went to project properties > Application > Webstart. But in my system, when I check "enable web start" option and click on OK, still the error "mainclass not found" remains. I figured out that by going again to project-properties > Application > Webstart, the "enable web start option" wasn't tick marked.

I actually found that everytime I check that web-start option, somehow it is never saved and effectively the option "enable web start" is never get checked. Why is that ? Can anyone suggest reasons ?

Andrew Thompson
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curious_mind
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    *"even though it is deprecated, it is part of my college assignment"* Since it is due to the teacher specifying it, please refer them to [Why CS teachers should **stop** teaching Java applets](http://programmers.blogoverflow.com/2013/05/why-cs-teachers-should-stop-teaching-java-applets/). Ask them if it's OK to do the assignment in a panel (a Swing based `JPanel`) which can be displayed in a `JFrame` or `JOptionPane` (ugly, but easier than an applet or frame). They should be fine with that, and if not, you really need to find a better teacher. Note that I'm the top-ranked provider of answers.. – Andrew Thompson May 09 '20 at 05:01
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    .. for the [tag:applet] tag, and even ***I*** won't help with them any more. – Andrew Thompson May 09 '20 at 05:03

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