static variables ' like in C ' java

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Thomas - 07 Jul 2007 14:03 GMT

The C language alows to use the static keyword :
(.. )'static' can also be defined within a function. If this is done, the
variable is initalised at compilation time and retains its value between
calls.
Is there any equivalent of this feature in java ?

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Eric Sosman - 07 Jul 2007 14:13 GMT

> The C language alows to use the static keyword :
> (.. )'static' can also be defined within a function. If this is done, the
> variable is initalised at compilation time and retains its value between
> calls.
> Is there any equivalent of this feature in java ?

No exact equivalent. A reasonably close approximation
is a class variable:

    class Thing {

    // initialized when Thing class is loaded,
    // retains last-stored value until program
    // exits or class is unloaded, whichever
    // comes first:
    static Whatever what;

    ...
    }

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Eric Sosman
esosman@ieee-dot-org.invalid

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Roedy Green - 07 Jul 2007 16:29 GMT

>The C language alows to use the static keyword :
>(.. )'static' can also be defined within a function. If this is done, the
>variable is initalised at compilation time and retains its value between
>calls.
> Is there any equivalent of this feature in java ?

See http://mindprod.com/jgloss/static.html

Java has static variables and methods, just like C++. However, it
does not have local static variables. You have to use class statics
instead and use a naming convention that suggests they are intended to
be used by only a single method.
--
Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

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static variables ' like in C ' java

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