title: /usr/bin/java: is a directory
body: <p>I downloaded the jdk-7u67-linux-x64.tar.gz file from the Oracle website, unzipped it and also created a symbolic link just like one of the tutorial said. (I'm very new to these things, so I have no idea what a symbolic link means so please explain it.) Right now, whenever I type Java, it says /usr/bin/java is a directory. I can't find any answer to this problem. Thanks in advance.</p>