Support Forums: Message List - Exadel launches Exadel Visual Component Platform 1.0

Re: Java is only pass by ref...

Tue, 08 Dec 2009 12:50:46 -0500

I'm really suprized people actually start arguing about this.
No kidding!

I think we know what you're getting at - underneath it's pass by value, but the result to the developer is pass by reference....

Java is only pass by ref...

Mon, 27 Mar 2006 08:24:54 -0500

I'm really suprized people actually start arguing about this.

No kidding!

I think we know what you're getting at - underneath it's pass by value, but the result to the developer is pass by reference. End?

Java is only pass by ref...

Sun, 26 Mar 2006 08:20:00 -0500

[quote]you're explaining techinical details of the compiler-- would you feel better if i would have said that java is passing new pointers that reference the same objects in memory in order to reduce memory consumption? [/quote]

You could have...

... and what about the copy ???

Sun, 26 Mar 2006 08:17:08 -0500

Made a small typo above:

test.a = foo.a;
test.bar = foo.bar;

should of course be:

foo.a = test.a;
foo.bar = test.bar;

(isn't there an edit function for posts here?)

... and what about the copy ???

Sun, 26 Mar 2006 08:14:11 -0500

Thanks for this clarification !

You're welcome. Glad for being able to clarify :)

Is myObj copied here ???
Are you sure that the copy is not another stuff, not related to by-value/ref ?

Wow,...

... and what about the copy ???

Sun, 26 Mar 2006 06:19:28 -0500

You pass *a* reference, but you don't pass *by* reference. That's a subtle but important difference.
[...]

Crystal clear, dude :-)

Actually I never thought about it like this and assimilated what is a clear by-value...

ref is passed by value! ;)

Sun, 26 Mar 2006 02:57:45 -0500

OK, I get your point : the reference is passed by value :-)
But still what's passed is a reference... don't you agree ?

Of course :) You pass *a* reference, but you don't pass *by* reference. That's a subtle but important...

Java is only pass by ref...

Sat, 25 Mar 2006 18:38:10 -0500

you're explaining techinical details of the compiler-- would you feel better if i would have said that java is passing new pointers that reference the same objects in memory in order to reduce memory consumption? do you think the average reader would've...

The ref is passed by value ?!

Sat, 25 Mar 2006 18:33:04 -0500

Now, the semantics of pass-by-value is that it makes a COPY of whatever a variable holds.
That is precisely what is happening in Java. The bit pattern that functions as a locator to the object is literally copied.

OK,...

Java is only pass by ref...

Sat, 25 Mar 2006 17:44:04 -0500

I don't know what you are talking about, but I'm talking about: [...]

Jackob, that's USING a reference and has nothing to do with pass-by-reference semantics. You're passing a reference to a method. This happens *by-value*,...

Java is only pass by ref...

Sat, 25 Mar 2006 16:20:15 -0500

I don't know what you are talking about, but I'm talking about:

List a = new ArrayList();
assert a.size() == 0;
addStuff(a);
assert a.size() == 1;

List b = new ArrayList();
asser b.size() == 0;
addStuff(b);
assert...

Java is only pass by ref...

Sat, 25 Mar 2006 15:37:01 -0500

It's because that's a copy of the reference that's passed. But copying a ref does not mean pass-by-value at all !

I'm sorry but it seems you're the one who is confused about this matter. Copying a ref IS a pass-by-value. In...

Java is only pass by ref...

Sat, 25 Mar 2006 11:37:06 -0500

Java isn't pass by reference, but pass by value.

???

The bits and bytes that make up a reference are passed by value. No way I can change what a variable points to for a variable that is passed to a...

Java is not pass by reference

Sat, 25 Mar 2006 06:20:49 -0500

offtopic:

[quote]Java is pass by reference[/quote]

C'mon jackob, I respect you a lot but you know what you just said isn't true. Java isn't pass by reference, but pass by value. The bits and bytes that make up a reference are passed by...

Exadel launches Exadel Visual Component Platform 1.0

Wed, 22 Mar 2006 13:37:19 -0500

Direct-to-dom or not, partial rendering is just a technical detail of the implementation. Our paradigm is to allow developers to avoid dealing with the underlying stuff, so they can concentrate on the business logic of their applications.The...