What is the advantage by keep reference from superclass and point it into the subclass in dynamic polymorphism?
855
What does it mean to "program to an interface"?
139848
Why is multiple inheritance not supported in most of programming language?
147584
Performance difference between passing interface and class reloaded
73545
Why is constructor of super class invoked when we declare the object of sub class? (Java)
37285
Should the call to the superclass method be the first statement?
104192
Store derived class objects in base class variables
124515
Java: Non-static nested classes and instance.super()
59051
What's the difference between SoftReference and WeakReference in Java?
45243
Does a subclass constructor require all arguments of superclass constructor?
81730
A use for multiple inheritance?
125400
copy object as a reference
140862
Why is it a bad practice to lock the object we are going to change?
38296
Java collections -- polymorphic access to elements
134042
Why do many Collection classes in Java extend the abstract class and implement the interface as well?
53604
C++ Dynamic vs Stack Objects and How to Use Them
10653
What is polymorphism, what is it for, and how is it used?
51454
What is the difference between 2 methods with ref object par and without?