What are abstract classes and interfaces, and how do they relate to method overriding in Java and similar languages?

What are the most notable differences between abstract classes and interfaces?

Explain the concept of dynamic method dispatch in the context of method overriding. How does it facilitate polymorphism?

Explain the concept of abstract methods and abstract classes in the context of method overriding. When and why are they used?

How do abstract classes and interfaces differ?

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Suppose that you are being interviewed for a position as a Java software developer. Suppose further that the interviewer asks how inheritance, interfaces, generic classes, and abstract classes are of benefit to developers. Using good grammar, complete sentences, correct grammar, answer this question in the manner you would answer the interviewer.

2. What are the new features added for Interfaces in Java 8 and Java 9? Give an example of an interface that was already defined in java and show its use.

What’s the base class in Java from which all classes are derived?

Explain the concept of a superclass and subclass in the context of method overriding.