Overridden members system verilog classes

I have below query.
class my_a;
int member1 = 1;
endclass
class my_ea extends my_a;
int member1 = 2;
endclass

Now when I do
my_a A;
my_ea EA;
EA =new();
A=EA;
============================================================
EA = new(); has given handle to object of type my_ea to class variable EA.
A=EA; This pass the same handle (pointer value which points to object of my_ea) to A.
so , A.member1 should refer to value 2.

But it refer to value 1. why?