Accessing a private variable from a public method of the same class

can anyone please tell me how to access a private variable, declared in a private method from a public method of the same class?
here is the code, i'm trying to get the variable int[][][] grids.
public static int[][] generateS(boolean[][] constraints)
private static int[][][] sudokuGrids()
    int[][][] grids; // array of arrays!
    grids = new int[][][]
    {

Are you sure that you want to have everything static here? You're possibly throwing away all the object-oriented goodness that java has to offer.
Anyway, it seems to me that you can't get to that variable because it is buried within a method -- think scoping rules. I think that if you want to get at that variable your program design may be under the weather and may benefit from a significant refactoring in an OOP-manner.
If you need more specific help, then ask away, but give us more information please about what you are trying to accomplish here and how you want to do this. Good luck.
Pete
Edited by: petes1234 on Nov 16, 2007 7:51 PM

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posted November 01, 2005 08:20 PM Profile for kenji mapes Email kenji mapes Send New Private Message Edit/Delete Post Reply With Quote Assume I have a default and a param constructor in both a subclass and a super class. The members are private.
So after validation logic in the sub class param. constructor, I want to access an instance variable of the super class's default constructor to set the subclass's matching variable to the default in the super class.
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posted November 01, 2005 08:20 PM Profile for
kenji mapes Email kenji mapes Send New Private
Message Edit/Delete Post Reply With QuoteI suppose this is the result of an attempted crossposting from another forum. :)

Inhiterance:unknow down-cast exception.Access a private attrib.from subclas

Hi guys,
I need your help.
Many examples, shows that i can create a sub-class inheriting from a super-class, add methods and attributes, make something like : <subclass variable> ?= <superclass instance> and then call method of the subclass (that are able to access to protect data of superclass instance for example).
But when i try to do the same with a class derived from cl_gui_alv_grid, i have always a casting type exception in the down-cast instruction.
Example :
field-symbols: <outtab> type standard table.
data : gos_alv type ref to cl_gui_alv_grid.
*       CLASS lcl_gui_alv_grid DEFINITION
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public section.
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Hi Andrea,
I suggest you to tweak a code a litte bit as I guess the point is to get mt_outtab table, right?
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PUBLIC SECTION.
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CREATE OBJECT gos_alv ....
lcl_gui_alv_grid=>get_tab_line( gos_alv ).
As for your question, why this code
l_alv ?= gos_alv.
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TRY.
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ENDTRY.
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When it comes to down cast always image such situation.
You have VEHICLE class (your cl_gui_alv_grid ). The class which inherits from it is PLANE (your lcl_gui_alv_grid). Now you can always do such assingnment
VEHICLE = PLANE (cl_gui_alv_grid = lcl_gui_alv_grid)    "up cast - narrow cast
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PLANE = VEHICLE (lcl_gui_alv_grid = cl_gui_alv_grid) "down cast
It is becasue plane is always a vehicle, but vehicle doesn't have to be a plain. It can be either a truck, ship or a plane.
Therefore for down cast you always has to ask system if VEHICLE really contains (during exection) reference to a PLANE. That's why you write it like
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Thought it might be not useful for first sight, it is a basis of polimorphism, but it is a talk for another time;)
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>
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