Re: Array problem

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#196

From: Raul Lorenzo
Date: Fri, 26 May 2006 13:47

40 lines
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Ok, It�s like C++.....I think Java create all the structure autom�tically.
Thanks

Lori M Olson [TeamB] escribi�:
> Raul Lorenzo wrote:
>> Hello,
>>
>> I have this piece of code
>> /***************************************************/
>> int index=0;
>> AttributeREM RoleREM[]=null;
>> RoleREM=new AttributeREM[asociationREM.numero_roles];
>> RoleREM[index].oid="hello";
>> /***************************************************/
>>
>> Java reports me a null Pointer exception at RoleREM[index].oid="hello";
>> Why?
>> asociationREM.numero_roles is always >0
>>
>> AttributeREM is a class something like this
>>
>> class AttributeREM
>> {
>> public String oid;
>> public String name;
>> ...
>> ...
>> };
>>
>> Thanks in advance
>>
> 
> This statement:
> 
> RoleREM=new AttributeREM[asociationREM.numero_roles];
> 
> Creates an array, but it does not populate the array with instances of
> AttributeREM.  The contents of the array will all be null, until you put
> something in it.
>

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Subject: Re: Array problem
From: Raul Lorenzo <rlorenb@agalisa.es>
Date: Fri, 26 May 2006 15:47:40 +0200
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