Really weird eclipse keyboard behavior/bug?

Question

I am using Helios on Mac Snow Leopard. I don\'t know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but

Answer 1

WORKED!!!

I'm using Eclipse Luna and Windows 7, but guess it works in all kinds as well.

In Eclipse, go to tab Window->preferences->General->keys

Then, find the Command "Delete" and "Delete Previous" in the list, and check if they are assign with something or not. If it is assign with the wrong key, click in "Unbind Command".

Just select the command that you want to change and press the key that you want to be on the "binding" field.

I think it works for Next, Next Column, Previous, Previous Column, Line Up, Line Down, or whatelse you want!!

Answer 2

I am also facing the same problem. In my case only the delete key is not working. I am using eclipse helios in ubuntu. The solutions given here are not working. However, restarting solves the issue.

Answer 3

Had this same issue. Turned out to be my middle button on my wireless mouse being pushed in my laptop bag. Normally I turn my mouse off, but this time I forgot. Glad that other people had this problem, otherwise I'd still be looking for the cause.

Answer 4

MacBook Pro 10.6.8, Eclipse Helios all of a sudden delete and arrows no longer work. Reboot worked for me.