R Systems International Senior Java Developer Interview Questions and Answers

General Question depended on daily life

List of employees and get employee name who is getting bonus more the 10000

Q1. Java OPPPS concept
Add your answer
Q2. String and feature
Add your answer
Q3. Spring feature and implementation
Add your answer
Q4. Hibernate and its implementation
Ans. 
Hibernate is a popular Java ORM framework that simplifies database interactions by mapping Java objects to database tables.
• Hibernate is an ORM (Object-Relational Mapping) framework that allows developers to map Java objects to database tables and vice versa.

• It provides a way to perform database operations using Java objects without writing complex SQL queries.

• Hibernate handles the mapping of Java classes to database ta...read more
Answered by AI
Add your answer

Question related to operating system and computer network

Q1. Traverse all child nodes in tree
Ans. 
Traverse all child nodes in a tree data structure
• Use depth-first or breadth-first traversal algorithms

• Recursively visit each child node starting from the root node

• Consider using a stack or queue data structure for traversal

• Example: Traverse all nodes in a binary tree
Answered by AI
Add your answer

Q1. Question related to cloud and oops
Add your answer

Q1. Question related to my background and how web site work
Add your answer

Q1. Basic DSA questions like binary search, pattern
Add your answer
Q2. Basic SQL query questions
Add your answer

1st round is aptitude and pesudocode

Q1. Mostly python questions
Add your answer
Q2. List questions and basic to mediumprogram
Add your answer

In first round 4 coding question like 1 dsa 2 database and one is api and question is very simple . coding round was conducted in hackerrank

Q1. DSA QUESTION LIKE TREE AND GRAPH
Add your answer
Q2. DP AND SORTING APPROACH
Add your answer

Again same but dsa question and oops concept in deep level

Q1. Rest Apis questions
Add your answer

Q1. Core java and OOPS and LLD
Add your answer

Q1. Something based on hashet
Add your answer
Q2. Same with this too
Add your answer

Basic questions were given..bar graphs,pie charts

Q1. What is Oops concept?
Ans. 
Oops concept stands for Object-Oriented Programming concepts which include principles like inheritance, encapsulation, polymorphism, and abstraction.
• Oops concept is a programming paradigm that focuses on objects and classes.

• It includes principles like inheritance, where a class can inherit properties and behaviors from another class.

• Encapsulation is another principle where data is wrapped within a class and can only be...read more
Answered by AI
Add your answer