public Asclasseg()
{
/*
* Upcasting.
* Upcasting is when we assign a variable with base
* type the value (another variable) of the subclass
* type, which implictly (automatically) converts the
* value (of sublclass type) to base class type, then
* assigns it to the base class variable.
*
* E.g
* Subclass s1 = new Subclass();
* Baseclass b1 = s1; // implictly upcast.
* */
/* Even with the upcasting, the upcasted variable will
* create a new reference that point to the Sublcass
* object, thus it will use the subclass versions of
* the class members (variables and methods).
* */
InheritClass2 c2Obj = new InheritClass2("Upcasting");
InheritClass1 c1Obj = c2Obj; // implict upcast
/*
* Downcasting
* Downcasting is when we assign a variable with subcl-
* ass type the value (another variable) of the base
* class type, which explictly converts the value (of
* base class type) to the subclass type, then assigns
* it to the subclass variable.
*
* E.g
* Subclass s1 = new Subclass();
* Baseclass b1 = s1; // implictly upcast.
* Sublcass s2 = (Basclass)b1; // explict downcast.
* */
InheritClass2 c2 = new InheritClass2("Upcasting");
InheritClass1 c1 = c2; // implicit upcast
InheritClass2 c3 = (InheritClass2)c1; // explicit downcast
// See here, we have tell the compiler explicitly to
// convert c1 and return a subclass type.
}
public static void OvaLoad(InheritClass1 inclass1)
{
Console.WriteLine("OvaLoad Base");
inclass1.Display();
}
