Developing for Java

[Cheetah Designs]

I have the following installed on my machine:

Java 6 Update 22
Java 6 Update 22 (64-bit)
Java SE Development Kit 6 Update 22
Java SE Development Kit 6 Update 22 (64-bit)

Does that look about right for the prerequisites? I take it that if I installed the top 2 that I wouldn't be able to run Java applications? Also, it is necessary to have both the 32-bit AND 64-bit versions installed?

Thanks.

 

[BlackDragon]

Java 6 Update 22 are the run time environments, so they just let you run a Java based application.

The Java Development Kit lets you write Java based programs and then compile them.

You don't need both 32-bit and 64-bit versions, in most cases you can just have the 32-bit version installed, unless you are developing/running 64-bit Java applications.

 

[Koalaboy]

As BlackDragon said.

Basically, if you're on a 64bit machine you just need:

Java SE Development Kit 6 Update 22 (64-bit)

(There are some subtle differences between the 64-bit and 32-bit JVMs, but nothing that should affect you much unless you're integrating with Native code)