I know that Java is pre-installed in Mac OS X but i wonder if it is pre-installed in Windows XP, Vista, 7 and all Linux distros?
+4
A:
Java isn't preinstalled in any Windows version (OEM not included - depends on the manufacturer then).
I think it is not common in Linux distributions at all, but I don't want to make a general statement about ALL distros here ;-)
Mef
2010-01-29 17:31:20
hmm, what a pity:(
weng
2010-01-29 17:37:24
Why? I mean, it's free, not such a big problem, is it?
Mef
2010-01-29 17:44:48
but then the users (that aren´t that skilled with Java) have to install Java first before they can use my Java applications. it could disencourage them to use it.
weng
2010-01-29 19:10:11
A:
Some Linux versions I experienced comes with old versions of Java JDK (so you must take care developing for these distributions!) or with an alternative version of the compiler: Gnu Compiler Java (GCJ).
About the virtual machine, I've just seen the JVM in Windows and Linux, provided by Sun.
marionmaiden
2010-01-29 17:44:30
A:
I understand that the vast majority of PCs come with the Sun JRE installed. There was a bit of a law suite between Microsoft and Sun (my employer, now a wholly owned subsidiary of Oracle).
The "6-open" OpenJDK is a backport of the GPLed JDK7. General purpose distros should include it, but of course with Linux you are fighting with package management.
Tom Hawtin - tackline
2010-01-29 18:17:56
This is true in many cases if it comes from a vendor but never as part of an operating system install.
Andrew Sledge
2010-01-29 18:21:57
(But the statement about the vast majority of PCs is, I believe, true and not in anyway misleasing.)
Tom Hawtin - tackline
2010-01-29 18:48:41