New() constructor function overriding

SystemVerilog
3

In reply to dave_59:

In reply to satih devrari:

class A;
function new;
$display("constructing A");
endfunction 
endclass
class B;
function new;
super.new();
$display("constructing B");
endfunction 
endclass
...
A a_h;
B b_h;
...
b_h = new;
a_h = B::new;

plz tell the operation of a_h = B::new;