I'm just started a basic CS course that uses java. For homework we write programs and then send them to a "robot" that checks them. If it doesn't run then you fail. openjdk is what came with fedora 9 which is what I'm programming on. My question is - are there any implementation differences that would make code run one way on my machine and run differently (or not at all) on the "robot" which uses java SE?
If so, then how do I switch to java SE? Are there any configuration files to change or do I simply use yum to uninstall openjdk and then run the bin file from Sun?