member-hiding - w3toppers.com

Hiding Fields in Java Inheritance

In java, fields are not polymorphic. Father father = new Son(); System.out.println(father.i); //why 1? Ans : reference is of type father, so 1 (fields are not polymorphic) System.out.println(father.getI()); //2 : overridden method called System.out.println(father.j); //why 10? Ans : reference is of type father, so 2 System.out.println(father.getJ()); //why 10? there is not overridden getJ() method in … Read more

C# – Keyword usage virtual+override vs. new

I always find things like this more easily understood with pictures: Again, taking joseph daigle’s code, public class Foo { public /*virtual*/ bool DoSomething() { return false; } } public class Bar : Foo { public /*override or new*/ bool DoSomething() { return true; } } If you then call the code like this: Foo … Read more