Difference between abstraction and implementation hiding ?
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How a program can be structured using the concept of object oriented programming?
Can we have default method with same name and signature in the derived interface as the static method in base interface and vice versa?
what are the main underlying concepts of object orientation?
Is iterator a class or interface? What is its use?
Do we require a parameter for constructors?
What is sealed modifiers?
Why should project managers complete hard problems first in an OOSAD project?
What is a Persistent, Transient Object?
What is the difference between class and interface?
Is it possible to provide method implementations in java interfaces? If possible, how do we provide them?
What is the difference between an error and an exception?
Explain what is meant by polymorphism?