how java behave when compile and run on different architecture

Question

Let say i have a application which has a class A.java which only print some info.

So will my application work under:

[1] If i compile A with jdk1.7.x86 and run it with jre1.7.x64 on a 64 bit windows machine ?

[2] If i compile A with jdk1.7.x64 and run it with jre1.7.x86 on a 32 bit windows machine ?

[3] If i compile A with jdk1.7.x86 and run it with jre1.7.x86 on a 64 bit windows machine ?

[4] If i compile A with jdk1.7.x86 and run it with jre1.7.x64 on a 64 bit Linux machine ?

[5] If i compile A with jdk1.7.x64 and run it with jre1.7.x86 on a 32 bit Linux machine ?

[6] If i compile A with jdk1.7.x86 and run it with jre1.7.x86 on a 64 bit Linux machine ?

@SotiriosDelimanolis its not a duplicate see the third point — Bhuvan, Dec 03 '13 at 03:51

Elliott Frisch · Answer 1 · 2013-12-03T05:46:34.300

1

Yes. Oui. Si. Igen. Da. Jah. Yebo. Avanu. Ναι. Haan. Ha’an-ji. نعم. Dah. Of course. Not a problem. Without a doubt. No question. The promise of the Java Runtime Environment is Write Once, Run Anywhere.

Linux, Mac, Windows, VMS, Solaris, etc.

edited Dec 03 '13 at 05:46

answered Dec 03 '13 at 03:53

Elliott Frisch

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this does not answer the question clearly – Bhuvan Dec 03 '13 at 03:54
yes true but your statement is true only after you have the correct jre installed for that architecture...see the third point... – Bhuvan Dec 03 '13 at 04:04
My statement remains true on Windows 7 and 8 given the third point. The only difference will be the amount of memory that is addressable. – Elliott Frisch Dec 03 '13 at 04:05
@ElliottFrisch: +1 for accuracy and originality – Lajos Arpad Dec 03 '13 at 06:01

score 1 · Accepted Answer · answered Dec 03 '13 at 04:35

The .class can run on any JVM which version is greater than the compile version in .class file.

eg:

If java file is compiled by jdk5, all JVM witch version is greater than 1.5 can run this class.

But if compile the java file like this:

javac -source 1.4 Your.java

The result class can run on JVM who's version is 1.4 or later.

how java behave when compile and run on different architecture

2 Answers2