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Revature Senior Java Developer Interview Questions and Answers

Updated 29 Jan 2025

Revature Senior Java Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Dec 2024.

Round 1 - Coding Test 

1. String input="aaabccccbbbdd";
Find how many a, b, c, d are there in the string. Did using java streams.
2.HashMaphm=new HashMap();
hm.put(55,"B");
hm.put(33,"Z");
hm.put(44,"M");
hm.put(99,"I");
hm.put(88,"X");
Sort this hashmap based on values(B, I, M, X, Z). Should be done using java streams.
3.List lists = Arrays.asList(Arrays.asList(1,2,3), Arrays.asList(2,3,4,5), Arrays.asList(5,7,8));
Question was wrong actually. But expectation is to do flatmap and print without duplicates.
Query:
get 3rd highest salary from employee table

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was good. Maybe interviewer was surprised when I tried to solve these questions using java streams.

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Lookup vs graphlookup in mongodb
  • Ans. 

    Lookup is used to perform a left outer join in MongoDB, while graphlookup is used to perform recursive graph traversal.

    • Lookup is used to perform a left outer join between two collections in MongoDB.

    • Graphlookup is used to perform recursive graph traversal in a collection that contains graph data.

    • Lookup can only perform a single level join, while graphlookup can perform multiple levels of traversal.

    • Lookup is faster than

  • Answered by AI
  • Q2. Count frequency of each character in string
  • Ans. 

    Use a hashmap to count the frequency of each character in a string.

    • Create a hashmap to store characters as keys and their frequencies as values.

    • Iterate through the string and update the hashmap accordingly.

    • Return the hashmap with character frequencies.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Create a rest api all the way from controller to repository using NOTEPAD
  • Ans. 

    Creating a REST API from controller to repository using NOTEPAD

    • Create a controller class with mapping annotations for REST endpoints

    • Implement service layer to handle business logic and interact with repository

    • Define repository interface with methods for data access operations

    • Use Spring Boot for easy setup and configuration

    • Test API endpoints using tools like Postman

  • Answered by AI
  • Q2. Couldnt write custom mongodb query at repository layer in notepad which rejected my candidature.

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Paper Test MCQs(Hibernate, Multithreading, Quantative Apptitute, Logical Reasoning,English Grammer check)

Round 2 - Technical 

(1 Question)

  • Q1. Basic string questions Spring boot questions
Round 3 - Technical 

(1 Question)

  • Q1. Project disscussion Questions related to the project Java 8 Stream questions
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Spring boot migration
Round 2 - HR 

(1 Question)

  • Q1. Will you be flexible?
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via campus placement at G L Bajaj Institute of Technology & Management, Greater Noida and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

They asked some general Quantitative and logical questions and code snippets.

Round 2 - Technical 

(2 Questions)

  • Q1. String Reverse and Two Sum
  • Q2. Related to my projects and Tech Stacks
Round 3 - Technical 

(2 Questions)

  • Q1. This is the Second technical round. The interviewer asked about everything from my project.
  • Q2. Asked some sql queries like joins and set operation

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and Understand the business idea of your Project and Tech Stacks
Interview experience
2
Poor
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Portal and was interviewed in Sep 2024. There were 4 interview rounds.

Round 1 - Coding Test 

2 DSA question was asked

Round 2 - Aptitude Test 

40 questions in 20 minutes

Round 3 - Technical 

(2 Questions)

  • Q1. Stones games 2 leetcode
  • Q2. Permutations of array
  • Ans. 

    Generate all possible permutations of an array of strings

    • Use recursion to generate permutations

    • Swap elements to create different permutations

    • Base case: when array size is 1, return array as permutation

  • Answered by AI
Round 4 - Technical 

(1 Question)

  • Q1. Project discussion

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Group Discussion 

It was easy, the topic is upi

Round 2 - Aptitude Test 

Aptitude + coding Test

Round 3 - Technical 

(2 Questions)

  • Q1. It's about my projects
  • Q2. And few Javascript questions
Round 4 - HR 

(1 Question)

  • Q1. General HR questions
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Job Portal

Round 1 - Coding Test 

60mintues DSA level coding exam

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Oct 2023.

Round 1 - Technical 

(1 Question)

  • Q1. Difference between list and map
  • Ans. 

    List is an ordered collection of elements, while map is a collection of key-value pairs.

    • List maintains the order of elements, while map does not guarantee any specific order.

    • List allows duplicate elements, while map does not allow duplicate keys.

    • In a list, elements are accessed by their index, while in a map, elements are accessed by their keys.

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Lookup vs graphlookup in mongodb
  • Ans. 

    Lookup is used to perform a left outer join in MongoDB, while graphlookup is used to perform recursive graph traversal.

    • Lookup is used to perform a left outer join between two collections in MongoDB.

    • Graphlookup is used to perform recursive graph traversal in a collection that contains graph data.

    • Lookup can only perform a single level join, while graphlookup can perform multiple levels of traversal.

    • Lookup is faster than

  • Answered by AI
  • Q2. Count frequency of each character in string
  • Ans. 

    Use a hashmap to count the frequency of each character in a string.

    • Create a hashmap to store characters as keys and their frequencies as values.

    • Iterate through the string and update the hashmap accordingly.

    • Return the hashmap with character frequencies.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Create a rest api all the way from controller to repository using NOTEPAD
  • Ans. 

    Creating a REST API from controller to repository using NOTEPAD

    • Create a controller class with mapping annotations for REST endpoints

    • Implement service layer to handle business logic and interact with repository

    • Define repository interface with methods for data access operations

    • Use Spring Boot for easy setup and configuration

    • Test API endpoints using tools like Postman

  • Answered by AI
  • Q2. Couldnt write custom mongodb query at repository layer in notepad which rejected my candidature.

Skills evaluated in this interview

Revature Interview FAQs

How many rounds are there in Revature Senior Java Developer interview?
Revature interview process usually has 1 rounds. The most common rounds in the Revature interview process are Coding Test.

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Revature Senior Java Developer Interview Process

based on 1 interview

Interview experience

4
  
Good
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