What is an abstract class, and how does it differ from an interface in Java?
Inheritance and Polymorphism
Original Khojo Papers practice question — not from a past board paper.
The version defined in B runs, because an overridden method is resolved at run time by the actual type of the object, which is B.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
If show() were static instead, the version in A would run, because static methods are bound at compile time.
From the same topic and chapter, at a similar level.
What is an abstract class, and how does it differ from an interface in Java?
Inheritance and Polymorphism
Why does Java not allow a class to extend more than one class?
Inheritance and Polymorphism
What does the super keyword do in Java?
Inheritance and Polymorphism
Distinguish between method overloading and method overriding.
Inheritance and Polymorphism
What is dynamic method dispatch, and why is it useful?
Inheritance and Polymorphism
State and verify the absorption law X + X·Y = X using a truth table.
Boolean Algebra