CAT Technologies Reactjs Developer Interview Questions and Answers for Experienced

Q1. What is OOPS concept
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation involves bundling data and methods that operate on the data into a single unit

• Inheritance allows one class to inherit prop...read more
Answered by AI
Add your answer
Q2. What is Encapsulation
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit, known as a class.
• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for better control over the data by preventing direct access from outside the class.

• Getters and setters are commonly used to access and modify the encapsulated data.

• Example: In a Car class, variables l...read more
Answered by AI
Add your answer
Q3. Define Four pillars
Ans. 
The four pillars of object-oriented programming in Java are abstraction, encapsulation, inheritance, and polymorphism.
• Abstraction: Hides complex implementation details and only shows the necessary features to the outside world.

• Encapsulation: Bundles data and methods that operate on the data into a single unit, preventing direct access from outside the class.

• Inheritance: Allows a class to inherit properties and behavior...read more
Answered by AI
Add your answer

Q1. Basics of python, oops concepts , basic of machine learning, strings and array coding questions
Add your answer

Q1. Sallary discussion
Add your answer

Normal Question Regarding Java oops and collections

Question regarding arrays, Array list and oops

Based on the project need to complete the task!

Q1. General Python Questions, working project-based questions.
Add your answer

Q1. Salary Discussion
Add your answer