I installed Eclipse via command apt-get install eclipse.

this command completed correct.

After this I run eclipse add some configurations: Added new url for "Available Software Sites".

On the next step I try removed Eclipse via apt-get remove eclipse.

and install eclipse again.

And here I see surprise: in new installed eclipse I see my old url for "Available Software Sites".

So, I guess, that configuration files not removed!

After this I tried different commands: something like this:

sudo dpkg -r eclipse

sudo apt-get --purge remove eclipse

sudo apt-get autoremove

but after I again install Eclipse I see my Url.

So, How I can fully remove eclipse with configuration files???