Java not running

Did you look at the settings in Java Preferences.app in Applications > Utilities yet? In particular, make sure the 'Enabled' box is checked.

Have you checked if any other Java program will run?

Can you at least check the version at the command line and get a response (java -verson)

Most likely corruption in that account. Since the issue is specific to your original user account, you can proceed in two ways. One is to log into your new account, make a list of the preference files (plists) located in /username/Library/Preferences/, including any in the ByHost subfolder, log back into the original account, move everything on that other account's list from the original account's Preferences folder into a newly created folder on the Desktop, log out and back in, and see if the problem goes away. If so, you can copy the ones in the Desktop folder (one at time) back into /Preferences/, restart, and see if the problem returns. If so, you've identified the corrupt/conflicting one. Continue with all of them until isolating the bad ones. That'll save you the trouble of resetting preferences.

The second way is much more detailed and I'll not burden you with the steps unless the above doesn't fix the issue.

Richard Brigg wrote:

But if I am removing all the Pref files from the "Bad" user folder, that are the same as from the "good" users folder, then logging back in to the "bad" user, wont the corrupted file still be there? I am a little confused.

The old and new user prefs don't mess with each other. When you log back into the bad user account and run the apps that are associated with the removed ones, default ones are created. If the problem persists, then you'll have to remove other ones from the bad user account, sort of playing guessing games, trying to isolate the corrupted or conflicting ones. An alternative is to move all of them into a Desktop folder, log out and back in, and resetting all defaults. On my machine I have over 500 of those and resetting everything would take forever.

If it works in the new account, then it's definitely something amiss in your account. Return the prefs to your Preferences folder and try the second way:

While logged into the newly created admin account, backup the bad account's folder, delete the bad account, selecting the save data option (which stores the data in /Users/Deleted Users/ as a disk image), recreate the bad account using the same username/password combo, log out and back into the recreated original account. If the problem's solved, open the saved data dmg file in /Users/Deleted Users/, open the /Library/Preferences/ folder from the saved data, open the current /Users/restored account/Library/Preferences/ folder, and slowly copy plist files from the saved data folder to the current one that don't exist in it. Log out and back in to ensure there's no conflict and things still work correctly. Resolving conflicts or identifying corrupt plist files is a laborious process. Good luck.