What Will Be The Output Of The Following Java Code P Pre #856

 class X { public void A() { System.out.println("123"); } } class Y extends X { public void B() { System.out.println("456"); } } class Z extends X { public void C() { System.out.println("789"); } } public class Hierarchical2 { public static void main(String[] args) { Y ob1 = new Y(); Z ob2 = new Z(); ob1.A(); ob2.C(); } } 

123 789

123 456

456 789

123 456 789