In reply to Ayush_1:
class A;
virtual function void display();
$display("Inside A");
endfunction
endclass
class B extends A;
virtual function void display();
super.display();
$display("Inside B");
endfunction
function void display1();
super.display();
endfunction
endclass
class C extends B;
virtual function void display();
display1();
endfunction
endclass
C c_h;
c_h=new();
c_h.display();