Object-Oriented Programming 🎃👻🦇

Question 1

What is the one class that is not part of any other class?

Answer 1

Object. Object is a special class located in the package java.lang.

Question 2

What class does toString() belong to?

Answer 2

Object class.

Question 3

In an object-oriented programming language, it is possible to make “ “ of an existing class.

Answer 3

subclasses

Question 4

What are the stages of the software life cycle?
Hint: Sam Always Does Coding Through D.Ms.

Answer 4

1. Specification
2. Analysis
3. Design
4. Coding
5. Testing
6. Debugging
7. Maintenance

Question 5

Define the term Software Engineering

Answer 5

The systematic approach to programming, using accepted principles of good design.

Question 6

Which term is used to represent the characteristics or properties of an object in OOP?

Answer 6

Attributes

Question 7

In OOP, what is the purpose of the “this” keyword?

Answer 7

To reference the current object within a method.

Question 8

What is the significance of inheritance in object-oriented programming?

Answer 8

It enables the creation of subclasses that inherit characteristics from a parent class.

Question 9

How are constructors used in object-oriented programming?

Answer 9

To initialize object attributes with predefined values

Question 10

Which OOP concept allows a class to have multiple methods with the same name but different parameters?

Answer 10

Polymorphism

Question 11

Which access modifier allows a class member to be accessed only within the same class?

Answer 11

Private

Question 12

How does the concept of polymorphism contribute to code flexibility and extensibility in object-oriented programming?

Answer 12

Nope: It allows objects to inherit attributes and behaviors from other objects.