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Home » Newcomers » Newcomers » Applet viewer is notworking anymore(My old Applet are not running inthe latest version of Eclipse)
Applet viewer is notworking anymore [message #1800241] Fri, 21 December 2018 17:20 Go to next message
Gregoire Verweijen is currently offline Gregoire VerweijenFriend
Messages: 1
Registered: December 2018
Junior Member
I've started programming my first applets in June this summer. My study book from my education was entirely based on applets since back then it was very promising. I Have not been programming since, I wanted to pick it up. So this summer I've been programming from this book again. This was successful on the Eclipse version of that time if I set my project to java 1.8.

fast forward to now.
I reinstalled my computer (mac) and went from 10.10.5 to 10.12.6.
I installed the latest Eclipse IDE and wanted to run a couple of Applets I made this summer.

However none of the previous programs runs. Note: these are very simple programs. Who can help me run these programs again in the Applet viewer.The error I;m getting is:

Error: Could not find or load main class sun.applet.AppletViewer
Caused by: java.lang.ClassNotFoundException: sun.applet.AppletViewer
Re: Applet viewer is notworking anymore [message #1800258 is a reply to message #1800241] Sat, 22 December 2018 09:24 Go to previous message
Ed Merks is currently offline Ed MerksFriend
Messages: 30882
Registered: July 2009
Senior Member
Which version of Java did you install on your computer? On the Mac you should really install a JDK, not just a JRE. Java itself has changed a lot going from Java 8 to Java 11, with things actually being removed from Java 11, so likely you'll have less problems if you use Java 8.
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