Pregunta de entrevista de Eze Software

Programming/OOP Basics including: What is an interface and how do you use it? What data structures can you list off the top of your head? How do you implement a hash map and how is it used? Public vs. Private vs. Protected? What is encapsulation and why not just use "private" to protect data? What is inheritance (give an example)? What is polymorphism (example)? What is method overloading & overriding? What is an example of a non-OOP language? What is the Agile methodology? What is Unit Testing? Explain all of these thoroughly.