Where I can find java version?

Question

When I run command "java -version" I can see jdk version. But where it stores physically?

Where does it store what? (And why do you want to know that?) — Mat, Feb 25 '12 at 15:04
I should find the registry keys: "SOFTWARE\JavaSoft\Java Development Kit" "CurrentVersion" — Lesya Makhova, Feb 25 '12 at 15:08
@LesyaMakhova Why would you expect it to be in the Registry? As cagcowboy says in his answer, it's built into the `java` executable. — Cajunluke, Feb 25 '12 at 15:10

score 4 · Answer 1 · edited May 23 '17 at 11:48

I'm assuming you mean "where are the binaries for Java stored" in which case the answer depends on your operating system.

On linux (or most OS X), typing

which java

will tell you where the main java binary is physically located

On Windows it's a bit harder. See Is there an equivalent of 'which' on the Windows command line? for a good discussion, or for quick check, type into a commad prompt:

echo %PATH%

and look for Java-related entries, or better still:

echo %JAVA_HOME%

to see if that's set. This will be the base directory for your JRE.

score 1 · Accepted Answer · answered Feb 25 '12 at 15:07

1

I would guess/expect that the java version would be built into the executable.

answered Feb 25 '12 at 15:07

cagcowboy

2 Answers2