The Java runtime, java, is often in the same bin directory. If the installed version is older (i.e. it is Java 5 and you wish to use the more recent Java 7 release), you should proceed below with downloading and installing a JDK. It is possible that you have the Java runtime (JRE), but not the JDK.
Earlobe piercings typically heal completely within 4 to 6 weeks. However, ear cartilage piercings -- such as a tragus, conch or helix piercing -- do not heal fully for 3 to 6 months. Swelling and redness usually resolve fairly quickly, typically within about a week.
Leave the post in your piercing. Until the piercing has healed, taking the earring post out of the hole will only expose your raw tissue to infection. For ear piercings, the healing process typically takes 6-8 weeks.During that time, you must wear the earring you put into your new piercing at all times or risk a painful infection. You should be able to notice results in less than 3 months, but it can take much longer than that to heal the hole completely. 2  Expect mild redness and a dip where the piercing was for a long while afterward.