Java does not exist for the Android OS.
There was a somewhat recent lawsuit from Oracle (the developers of Java) suing Google because the Android OS contained a lot of code that were very similar to Java. The Android OS runs Dalvik which is more or less like a derivative of Java and is incompatible with Java.
Given the animosity between Oracle and Google, don't expect Java to come out for Android until the distant future; 10+ years. If ever.