There are no 64-bit versions of the Java Plugin, Java Web Start or Java Control Panel; however the 32-bit versions of the JRE can be installed on 64-bit systems in order to obtain this functionality.

"While 64-bit Java software is not yet offered on HP-UX or Sun Solaris, we will be offering a free download of our AIX developer kit, Java 2 Technology Edition, Version 1.3.0 for AIX 5L, in early ...

For beginners, choose the 2nd (or 3rd) entry "Eclipse IDE for Java Developers" (32-bit or 64-bit) (e.g., "eclipse-java-oxygen-2-win32-x86_64.zip" 180MB) ⇒ Download.