assosiative arrays

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Rune Runnestø - 16 May 2005 10:10 GMT

Php and Perl have a structure called assosiative arrays. With keys and
values. Does Java have a similar structure ?

Regards
Rune

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Alex Buell - 16 May 2005 10:34 GMT

On Mon, 16 May 2005, Rune Runnest wrote:

> Php and Perl have a structure called assosiative arrays. With keys and
> values. Does Java have a similar structure ?

Yes, there's the Map class.

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Steve Horsley - 16 May 2005 18:42 GMT

> Php and Perl have a structure called assosiative arrays. With keys and
> values. Does Java have a similar structure ?
>
> Regards
> Rune

See java.util.Map and its subclasses.
You have to use them as classes - there's no special language
support for them, so instead of (python maybe):
x = properties['WibbleRate']
you must use
x = properties.get("WibbleRate");

Steve

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bugbear - 17 May 2005 10:26 GMT

> Php and Perl have a structure called assosiative arrays. With keys and
> values. Does Java have a similar structure ?

Yes - many kinds of; it even has "associative arrays"
that maintain insertion order, which perl doesn't.

See the MANY implementations of Map, both in
standard Java, and many "collection"
type libraries such as Apache/Jakarta

BugBear

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assosiative arrays

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