Ritwik Software Technologies Software Engineer Interview Questions and Answers

Focusing on moderate level patterns

Q1. Discuss object oriented principles in depth
Ans. 
Object oriented principles are fundamental concepts in software development that focus on organizing code into objects with properties and behaviors.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a new class to inherit properties and behaviors from an existing class.

• Polymorphism: The ability for objects of different classes to respond to the same message in di...read more
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Q2. Deep discuss of interface
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Q3. Deep discuss of exception, multithreading
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Q4. Deep discuss of oop
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Q1. Asked some tricky question related to real life problems
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Leet code medium level question

Q1. About Java Streams
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Q2. Restful API coding completion based on given file
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Q1. To check your attitude
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Q2. Given detailed about company and what project you are going to work on?
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Q1. Hashmap working
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Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hashmap uses a hashing function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
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Q2. Multithreading cases
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Q3. Scenario specific on how to handle multiple events on a single variable to have accurate result
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Q4. Database indexing
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Q5. Architecture level
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On Hackerearth (1 hour) ,array string two pointer sliding window, solve 150 interview sheet leetcode

Q1. Introduction and Next Js project (SSR,API,AI)
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Q2. Javascript (@strict,hoisting) , Component in react
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Q3. Joins,Referential Integrity,Left Outer Join, Find 3rd highest salary of employee.
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Q4. Leetcode Q3 ,Q84, Q560, Q5
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Q5. Linked list, Implement stack using array
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Array questions - rearranging letters for encryption

Q1. Introduce yourself and your experience in college.
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Q2. Database and sql related questions
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Q1. Springboot notations
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Q2. How to handle multiple request on springboot
Ans. 
Use thread pooling and asynchronous processing to handle multiple requests efficiently in Spring Boot.
• Implement thread pooling to manage multiple requests concurrently.

• Use asynchronous processing to handle requests without blocking the main thread.

• Consider using reactive programming with Spring WebFlux for better scalability.

• Optimize database queries and external API calls to reduce response times.

• Implement caching mec...read more
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Q1. What is server and abap server
Ans. 
A server is a computer or software that provides functionality for other programs or devices. ABAP server is a server that runs ABAP programs.
• A server is a computer or software that provides services or resources to other computers or programs.

• ABAP server is a server that runs ABAP (Advanced Business Application Programming) programs, commonly used in SAP systems.

• ABAP server handles requests from clients and executes A...read more
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60 MCQ questions are there

Q1. Simple java questions are there
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Q2. Array list vs Linked List
Ans. 
Array list is faster for accessing elements by index, while Linked List is better for frequent insertions and deletions.
• Array list has constant time access to elements by index, while Linked List requires traversing the list to find an element.

• Linked List is better for frequent insertions and deletions as it only requires changing pointers, while Array list may require shifting elements.

• Array list uses contiguous memor...read more
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Initially, they shortlist the candidates and group them into batches of 15 students. During this process, they conduct a group discussion (GD) in which each student has 3 minutes to think, followed by an opportunity to describe their points in 2 to 3 minutes.