Rrootshell Technologiiss Senior Software Engineer and Lead Interview Questions and Answers

Simple map question basically it was frequency based sorting

Q1. Explain about oops
Ans. 
Object-oriented programming paradigm where data and behavior are encapsulated within objects
• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: ability for a class to inherit properties and behavior from another class

• Polymorphism: ability for objects of different classes to respond to the same method call
Answered by AI
Add your answer
Q2. Tell me about the threads in Operating system
Ans. 
Threads in operating system are lightweight processes that share the same memory space and resources.
• Threads allow for concurrent execution within a single process

• Threads share the same memory space, allowing for efficient communication and data sharing

• Threads can be created and managed by the operating system or by the application itself

• Examples of threading models include user-level threads and kernel-level threads
Answered by AI
Add your answer

Q1. How abstraction and inheritance are related?
Ans. 
Abstraction allows for defining a common interface for related objects, while inheritance enables a class to inherit attributes and methods from another class.
• Abstraction involves hiding the implementation details and showing only the necessary features of an object. Inheritance allows a class to inherit properties and behaviors from another class.

• Abstraction helps in creating a blueprint of a class without providing t...read more
Answered by AI
Add your answer
Q2. Given a perticular time, find the angle between hour hand and minute hand.
Ans. 
To find the angle between hour and minute hand at a given time on a clock face.
• Calculate the angle made by hour hand with 12:00 on the clock face

• Calculate the angle made by minute hand with 12:00 on the clock face

• Find the absolute difference between the two angles

• If the angle is greater than 180 degrees, subtract it from 360 degrees for the acute angle
Answered by AI
Add your answer

Question based on array string linkedlist

Q1. Expectations , Future , who referred , why this firm
Add your answer

DSA questions , OOPS , basics and recursion topics

Q1. Java related question
Add your answer
Q2. Web services related question
Add your answer

Q1. Project related question
Add your answer

Q1. Technical questions
Add your answer

Q1. Technical questions
Add your answer

Q1. Basic discussion
Add your answer

Fizz buzz question and array related

Q1. Basic react, javascript and one question to find duplicate.
Add your answer

Q1. Salary discussion
Add your answer