OOP – Page 2 – Sharp: NCLEX, Java & Python

Java: Upcasting and Dynamic Dispatch

What does upcasting buy you?

How does 'this' improve code readability in a class?

How does polymorphism enable runtime method selection in Java?

What happens if 'this' is used incorrectly in static contexts?

What role do interfaces play in polymorphism?

How can excessive polymorphism lead to performance issues?

How would you explain the principle of substitutability in polymorphism in an interview?

Why might polymorphism introduce unexpected behavior in Java?

How do abstract classes support polymorphism?

What are the trade-offs of using polymorphism in large-scale applications?