Question
The volume (in cu.cm.) of a right circular cylinder with
radius 1 cm and height 2 cm on is: (Take π = 22/7)Solution
Volume of cylinder = πr² h = 22/7 x (1)² x 2 = 44/7 cubic cm
Which OOP concept allows a class to inherit properties and behaviors from another class?
The ability of an object to take on many forms is known as:
Which OOP principle is most closely related to the concept of "information hiding"?
The ability of an object to take on many forms, or the ability of a single interface to represent different underlying forms, is known as:
Which of the following best represents a real-world example of abstraction?
Which OOP principle binds data and the methods that operate on that data within a single unit?
Consider a BankAccount class with a balance field. To properly encapsulate balance, it should be declared as:
Which special method is automatically called when an object of a class is created, typically used for initializing the object's state?
What is the primary difference between an abstract class and an interface in Java (pre-Java 8)?
Which of the following is a benefit of encapsulation?