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In Java all object variables are actually similar to C++ pointers. So, 
when you create AttributeREM* array you will also get an array of nulls.

- Alexey.

Raul Lorenzo wrote:
> Ok, It´s like C++.....I think Java create all the structure automátically.
> Thanks
> 
> Lori M Olson [TeamB] escribió:
>> 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.
>>

-- 
Alexey N. Solofnenko
home: http://trelony.cjb.net/