Re: Java Prototyping Questions?

["Joe Sam Shirah" <jshirah@xxxxxxxxxxxxx>]

    Hi Robert,

    I think this answers what you are asking.

>   1. How do I prototype the someMethod so that it accepts an array.

    You pretty much have it already.  My preference is to put the brackets
with the type rather than the variable.  If no access is given, the default
is package access.  A return type must be given, use void if nothing is
returned.

<access>  <ReturnValueType> someMethod( MyClassA[] myClass )
{
}

>   2. How do I define a field to be an array MyClass[].

MyClass[] myClass;


>   3. How do I instantiate the array field from 2.

    Assumes the declaration from above.

myClass = new MyClass[ NumberOfElements ];

    Note that all elements are initially null for Object arrays.  You have
to load it with objects.

    You can do the declaration and create the array in one step as:

MyClass[] myClass = new MyClass[ NumberOfElements ];

    See The Java Tutorial and the Java Language Specification for more
information about arrays, variable declarations and loading.


                                                         Joe Sam

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----- Original Message -----
From: "Robert Upshall" <rupshall@xxxxxxxxxxx>
To: <java400-l@xxxxxxxxxxxx>
Sent: Wednesday, July 21, 2004 3:07 PM
Subject: Java Prototyping Questions?


> I am trying to prototype a java methods and I have some questions:
>
> Example:
>
> I have 2 classes, MyClassA and ThatClassB.  ThatClassB has a method
> someMethod(MyClassA myClass[]).  I have MyClassA and ThatClassB
> prototyped.
>
>   1. How do I prototype the someMethod so that it accepts an array.
>
>   2. How do I define a field to be an array MyClass[].
>
>   3. How do I instantiate the array field from 2.
>
>
> Robert
>