but they can extend only one abstract class. This is a design decision based on the fact that multiple inheritance (extending more than one class) can cause code deadlocks. Java’s engineers ...

We will focus on the relationship between polymorphism and Java inheritance ... featuring Duke and Juggy: public abstract class JavaMascot { public abstract void executeAction(); ...

Java does enable the option to mark a class as final to eliminate the ability to perform inheritance complete, but that is often too heavy of a hammer to drop. Marking a class as final prevents all ...