Re: [General]acces of members of subclass

Daniel Moyne wrote:
When you have this :
public class My_Class {
public method_1 {...}
public method_2 {...}
public int u;
public String v;
}
you can get access to members like this :
My_Class aa=new My_Class();
int k=aa.u;
String l=aa.v;

but in this case :
public class My_Class {
public method_1 {...}
public method_2 {...}
public int u;
public String v;
}
public class My_Other_Class extends My_Class{
public method_3 {}
public method_4 {}
public int w;
public String z;
}

How can I access public members w and z once I have done this :
My_Class aa=new My_Other_Class();

You can't do it in a clean way.

if (aa instanceof My_Other_Class)
((My_Other_Class)aa).w = 2;

Works but is nasty. If you need to access w then you should declare aa as being of type My_Other_Class.


Apparently subclasses are designed for private members ?

I'm sorry I've no idea what you mean by this. You can have subclasses which declare additional public fields (I find your "member" terminology a little confusing).


--
RGB
.

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