Oracle SQL Developer problem – backspace / delete button not working – quick fix

The backspace and delete button inside the SQL query editor, all of a sudden, stopped working!

I tried restarting the Oracle SQL Developer, even restarting the computer, but the problem persisted.

I didn’t want to uninstall/re-install the application, so I went on to search the Oracle official forums.

Seems like other people had the exact same problem, and the solution was quite simple!

To resolve the problem you have to go to:

Tools -> Preferences -> Accelerators -> Load Preset -> Default -> OK

Jscript Error

Friends - I encountered the "JScript error" whenever i access a java enabled page. It doesn't harm anything. But the error message popped every time, which made me to feel uneasy. The simplest way i used to eliminate it is, just uninstalled the JDK and re-installed it. I am happy now. Try it if you have the same issue..