Deleted all Java-related files from system

Hello there, community!
This issue will make me look like a dummy, but here it goes. Basically it is what I did yesterday, I erased all Java-related files from my computer for hideous reasons, now before considering a reinstall, I'd like to know whether there is a solution to this problem. My recovery partition still has Mavericks installed, which is weird, seeing as I am on Yosemite already.
Basically most apps won't start, and that includes Finder, App Store and every other major app/resource I might need to use for a recovery.
I tried to re-download Java from Oracle website and JDK, but .dmg files won't run either.
I'm trying to look for as many solutions as possible before I do a recovery, because again, I don't have a Time Machine, and hope there will be a solution as I have lots of work to finish.
Any type of help will be welcome!
Mid-2011 iMac 21.5, Mavericks 10.10.1

Hello EdNKh,
Welcome to the Apple Support Communities!
I understand that you are trying to reinstall Java but cannot get the .dmg to run. With the information you provided in your post, I would suggest using the information in the attached article to reinstall OS X Yosemite. Reinstalling with this information will keep your files and settings intact.
OS X Yosemite: Reinstall OS X
Have a great day,
Joe

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STOP opening new threads for ongoing solution to SAME problem
Re: I have copy of data files! How to install and add these files to database!
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Re: I have copy of data files! How to install and add these files to database!
Handle:      misterimran
Email:      misterimran
Status Level:      Newbie
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Total Posts:      1,109
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