We will focus on the relationship between polymorphism and Java inheritance ... Debugging is one of the easiest ways to fully absorb programming concepts while also improving your code.

Although Java prevents a developer from extending more than one class, a simple trick can be used to simulate multiple inheritance. I have used this technique in both a Swing application and a Web ...

but Martin's quick description initially reads like a summary of Java's out-of-the-box inheritance and polymorphism mechanisms. We need to dig deeper to understand what he really meant, to then ...