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Hi All,

I was wondering where is the source code for array implementation in
java ? Any pointers would be welcome !

Thanks,
Ankur

ankur <> writes:
>I was wondering where is the source code for array implementation in
>java ? Any pointers would be welcome !

»jdk-7-ea-src-b45-jrl-29_jan_2009.jar« on

http://download.java.net/jdk7/

ankur wrote:
> I was wondering where is the source code for array implementation in
> java ? Any pointers would be welcome !

The source for java.util.Arrays comes with the SUN JDK.

Real arrays are a part of the Java language and is supported
by the JVM. Since SUN open sourced its Java implementation, then
you can also get the entire JVM source. But finding the parts
that specifically covers arrays may be a non-trivial task. And
probably not very relevant for the problem you are trying to solve.

Arne

On Feb 1, 5:39*pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
> ankur wrote:
> > I was wondering where is the source code for array implementation in
> > java ? Any pointers would be welcome !
>
> The source for java.util.Arrays comes with the SUN JDK.
>
> Real arrays are a part of the Java language and is supported
> by the JVM. Since SUN open sourced its Java implementation, then
> you can also get the entire JVM source. But finding the parts
> that specifically covers arrays may be a non-trivial task. And
> probably not very relevant for the problem you are trying to solve.
>
> Arne

I was actually interested in understanding how arrays of primitive
types are created and maintained.

Array.class is in the util package and does not cover array
constructors. Is there a class in Java.lang that covers how arrays are
constructed and maintained. There is no specific issue I ma m trying
to resolve ...just curiosity.

Thanks,
Ankur

ankur wrote:
> On Feb 1, 5:39 pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
>> ankur wrote:
>>> I was wondering where is the source code for array implementation in
>>> java ? Any pointers would be welcome !
>> The source for java.util.Arrays comes with the SUN JDK.
>>
>> Real arrays are a part of the Java language and is supported
>> by the JVM. Since SUN open sourced its Java implementation, then
>> you can also get the entire JVM source. But finding the parts
>> that specifically covers arrays may be a non-trivial task. And
>> probably not very relevant for the problem you are trying to solve.
>
> I was actually interested in understanding how arrays of primitive
> types are created and maintained.
>
> Array.class is in the util package and does not cover array
> constructors. Is there a class in Java.lang that covers how arrays are
> constructed and maintained. There is no specific issue I ma m trying
> to resolve ...just curiosity.

You can study the Java language and the generated byte code.

But if you really want to know the behind the scenes then I am
afraid you will need to look at the C code in the JVM.

Arne

Arne Vajhøj wrote:
> ankur wrote:
>> On Feb 1, 5:39 pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
>>> ankur wrote:
>>>> I was wondering where is the source code for array implementation in
>>>> java ? Any pointers would be welcome !
>>> The source for java.util.Arrays comes with the SUN JDK.
>>>
>>> Real arrays are a part of the Java language and is supported
>>> by the JVM. Since SUN open sourced its Java implementation, then
>>> you can also get the entire JVM source. But finding the parts
>>> that specifically covers arrays may be a non-trivial task. And
>>> probably not very relevant for the problem you are trying to solve.
>>
>> I was actually interested in understanding how arrays of primitive
>> types are created and maintained.
>>
>> Array.class is in the util package and does not cover array
>> constructors. Is there a class in Java.lang that covers how arrays are
>> constructed and maintained. There is no specific issue I ma m trying
>> to resolve ...just curiosity.
>
> You can study the Java language and the generated byte code.
>
> But if you really want to know the behind the scenes then I am
> afraid you will need to look at the C code in the JVM.

JLS is:

http://java.sun.com/docs/books/jls/t...ml/arrays.html

JVM spec is:

http://java.sun.com/docs/books/jvms/...doc.html#16446
http://java.sun.com/docs/books/jvms/....doc.html#4091

Arne

On Feb 1, 6:36*pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
> Arne Vajhøj wrote:
> > ankur wrote:
> >> On Feb 1, 5:39 pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
> >>> ankur wrote:
> >>>> I was wondering where is the source code for array implementation in
> >>>> java ? Any pointers would be welcome !
> >>> The source for java.util.Arrays comes with the SUN JDK.
>
> >>> Real arrays are a part of the Java language and is supported
> >>> by the JVM. Since SUN open sourced its Java implementation, then
> >>> you can also get the entire JVM source. But finding the parts
> >>> that specifically covers arrays may be a non-trivial task. And
> >>> probably not very relevant for the problem you are trying to solve.
>
> >> I was actually interested in understanding how arrays of primitive
> >> types are created and maintained.
>
> >> Array.class is in the util package and does not cover array
> >> constructors. Is there a class in Java.lang that covers how arrays are
> >> constructed and maintained. There is no specific issue I ma m trying
> >> to resolve ...just curiosity.
>
> > You can study the Java language and the generated byte code.
>
> > But if you really want to know the behind the scenes then I am
> > afraid you will need to look at the C code in the JVM.
>
> JLS is:
>
> http://java.sun.com/docs/books/jls/t...ml/arrays.html
>
> JVM spec is:
>
> http://java.sun.com/docs/books/jvms/.../Compiling.doc...
>
> Arne

ok, thanks Arne !
Ankur