This looks like the Liskov substitution principle that Uncle Bob Martin described: Substitute a derived class (Square) for a base class (Rectangle). From the standpoint of the compiler, the above code ...

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...

A method might accept a specific type and its subclasses, but you want to restrict usage to a select few implementations of your own design. Java's open inheritance model can feel like an open ...

Examples of object-oriented programming languages include Java, C++, Python, and Ruby. A computing platform refers to the underlying hardware and software environment on which a program runs.

Java is one of the most popular programming languages out there. A lot of people attend Java interviews every day and while the level of questions always depends on the expertise, people usually ...