Eclipse shortcut keys are not working suddenly in Windows

Eclipse shortcut keys are not working suddenly in Windows, Even basic needed shortcut keys also like 'ctrl + F' or 'crtl + c'. I hope if i restart the eclipse it will resolve, but i can not do, bucause my applications are running in eclipse. I ensured that this happening in eclipse or all windows. But not happening same in notepad++ editor.

It looks wonder but it happening.

My problem was solved when I restored defaults values of my Keys.
Go to Window -> Preferences -> General -> Keys.
Then, click Restore Defaults button at the bottom, and restart Eclipse.
I am using Eclipse Juno.

This is a bug in Eclipse Juno, restarting Eclipse does solve it temporarily, I'll try an dig out the bug report.

Bug report https://bugs.eclipse.org/bugs/show_bug.cgi?id=385278

Comment from bug description...

> I am also facing a lot of problems regarding the keyboard shortcuts. > The issue is intermittent and all of a sudden most of the key board > shortcuts(specifically f3, ctrl+D, ctrl+O ) stop working unless I > restart my IDE.

Based on the link posted by david99world

Changing perspective and going back does also solve this, that does looks like is a focus problem.

My problem was solved this way: Go to Window -> Preferences -> General -> Keys

and look at the "Scheme:" control. Change it to "Default". If only that doesnt do it for you, in the field "Binding:" leave it blank.

For me it worked.