I am developing on a new MacBook Pro (just got it last week) and I would like to make the most of it by migrating my IDE from windows to OS X. I understand I have a 64 bit OS but my primary target will be to run my application on a Windows 32 bit platform. Now I know I have both 32bit and 64bit Java's installed on the MAC - but if I want to develop for a 32 bit enviroment - do I need to run the 32 bit version of Eclipse ?
Eclipse is an editor, a tool to write and manage source code that is then compiled by the JDK and run by the JVM. No, you don't need to use a 32-bit editor to write Java source code for a 32-bit environment.
Learning Java using Eclipse on OpenSUSE 11.2
Linux user#: 501795
In addition, Java code is run within a virtual machine which is the same (as far as the Java code is concerned) there the physical machine runs a 32-bit or 64-bit OS or JVM. That is what "write once, run anywhere" means.