Complete Java SE 8 Developer Bootcamp - Benefits of Polymorphism

The video tutorial discusses the development of an accounting system by a large software team, focusing on the employee hierarchy and the use of polymorphism. It explains how different employee types like managers, instructors, and programmers are handled through method overriding. The tutorial highlights the importance of consistent method interfaces and the flexibility offered by polymorphism, allowing changes to be made in one place without affecting the entire system. It also addresses potential errors and the benefits of future-proofing the application.

What does it mean to 'separate the things that change from the things that stay the same' in software design?

Describe a potential problem that could arise if an employee subclass does not override the 'pay' method.

How can adding a new type of employee, like a tech writer, be accomplished without changing existing code?