Question
17 21 51 169 701
? What should come in place of question mark ‘?’ in the following number series?Solution
17 × 1 + 4 = 21 21 × 2 + 9 = 51 51 × 3 + 16 = 169 169 × 4 + 25 = 701 701 × 5 + 36 = 3541
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?