I tried to run a Java program (.jar) in Ubuntu using the default Java (JDK if I'm not mistaken) but I couldn't so I tried to install it following these instructions but I still can't.
What should I do?
How do I revert what I just did following that link?
javac -version
orjava -version
. if it outputs with version on it, then you have installed java correctly. and then run (if it exists)java -jar youJarFile.jar
– nickanor Apr 08 '13 at 14:39