.....What this means is Android does not natively run Java code (and barring a major sea change it never will officially. There have been some efforts in the non-official Android dev community to integate true Java into Android).
So if you're thinking can I drop my Java games on there and will they work, the answer is no. The same is true for websites that use Java code, they will not run on Android browser. There is a lot of marketing form Android-equipped device manufacturers about providing a "full" web experience because of Android's Flash support, but that ignores the Java issue. ......BTW, there is a tool from Google which lets you recompile Java code into Dalvik friendly files. I used it to get a Java chat client running on an Android phone.