Connecting to Oracle SQL Developer locally on Mac? I'm trying to connect to Oracle SQL Developer locally on my Mac. How exactly is this done? I've looked all over the network, and can't find anything helpful.

The only thing I did is installing the latest version of Oracle SQL Developer.

I have an assignment due tomorrow and cannot work from labs today.
SQL Developer doesn't come with an Oracle database, it is a client application. You can't "connect to SQL Developer", you use SQL Developer to connect to an existing database.

There are no supported editions of Oracle database for Mac OS X at this time, the latest that was available was 10gR2. You'll need to set one up in a VM on your machine (Windows or Linux, using the Oracle XE edition seems like it would fit your need), or see if you can somehow connect to your lab databases (possibly via a VPN to your school if they have that available).