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Bajaj Finserv Android Developer Interview Questions and Answers

Updated 23 May 2024

Bajaj Finserv Android Developer Interview Experiences

1 interview found

Android Developer Interview Questions & Answers

user image Shrikar Shirish Korwar

posted on 23 May 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Nov 2023. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Duplicate elements in a array with o(n) complexity.
  • Ans. 

    Use a HashSet to track duplicate elements in linear time complexity.

    • Create a HashSet to store unique elements.

    • Iterate through the array and check if the element is already in the HashSet. If it is, then it is a duplicate.

    • Add the duplicate elements to a separate list or array.

  • Answered by AI
Round 2 - One-on-one 

(1 Question)

  • Q1. Coroutines in details
  • Ans. 

    Coroutines are a way to perform asynchronous operations in a sequential manner in Kotlin.

    • Coroutines are lightweight threads that can be used for asynchronous programming.

    • They allow for sequential code execution with suspend functions.

    • Coroutines can be used for tasks like network calls, database operations, and UI updates.

    • They are part of Kotlin's standard library and are supported in Android development.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview before Sep 2020.

Round 1 - Face to Face 

(1 Question)

Round duration - 30 minutes
Round difficulty - Easy

It was in the day time. I was asked the programming language of my choice. It was mostly focused on programming fundamentals. I was asked 2 questions based on Data Structures and Algorithms.

  • Q1. How can you detect a loop in a linked list?
Round 2 - Face to Face 

(1 Question)

Round duration - 30 minutes
Round difficulty - Easy

This round was mostly focused on my resume and projects.

  • Q1. Tell me about your projects.
  • Ans. 

    I worked on several projects, including a web app for task management and a machine learning model for sentiment analysis.

    • Developed a task management web app using React and Node.js, allowing users to create, update, and delete tasks.

    • Implemented a machine learning model using Python and scikit-learn to analyze customer reviews and predict sentiment.

    • Created a personal portfolio website to showcase my projects and skills...

  • Answered by AI
Round 3 - Face to Face 

Round duration - 30 minutes
Round difficulty - Easy

It was in the evening. I went to their office in Gurgaon. It was taken by one of the technology director who had a lot of experience. 
 

Interview Preparation Tips

Professional and academic backgroundI completed Information Technology from Bharati Vidyapeeth's College of Engineering. I applied for the job as SDE - 1 in GurgaonAmerican Express interview preparation:Topics to prepare for the interview - Data structures and algorithms, Object-Oriented Programming System concepts, Database Management System, Operating System, Networking.Time required to prepare for the interview - 2 MonthsInterview preparation tips for other job seekers

Do practice a lot of data structures questions as mostly questions in interviews are based on them. Also, do prepare for projects mentioned in your resume and skills which you have mentioned. Coding ninjas has a big hand in making my interview clear as I have taken a course from the coding Ninjas which helped me a lot to make my concepts clear.

Application resume tips for other job seekers

Keep it short and crisp. Go through it properly before the interview. Make sure that you haven't put anything in it that can cause you problems during the interview.

Final outcome of the interviewSelected

Skills evaluated in this interview

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I appeared for an interview in May 2017.

Interview Questionnaire 

6 Questions

  • Q1. Can string class be extended
  • Ans. 

    Yes, the string class can be extended in most programming languages.

    • Inheritance can be used to extend the functionality of the string class.

    • By creating a new class that inherits from the string class, additional methods and properties can be added.

    • Extending the string class allows for customization and adding specific functionality to strings.

    • Example: In Python, the string class can be extended by creating a new class ...

  • Answered by AI
  • Q2. What are the implecit object in JSP
  • Ans. 

    Implicit objects in JSP are predefined objects that are available for use without any declaration or initialization.

    • Implicit objects in JSP include request, response, session, application, out, config, pageContext, page, exception, and others.

    • These objects provide access to various aspects of the JSP environment and can be used to perform common tasks.

    • For example, the request object allows access to HTTP request parame...

  • Answered by AI
  • Q3. How does hash map works
  • Ans. 

    A hash map is a data structure that uses a hash function to map keys to values.

    • Hash map stores key-value pairs

    • It uses a hash function to compute an index for each key

    • Collisions can occur when two keys hash to the same index

    • Hash maps provide fast access to values based on their keys

  • Answered by AI
  • Q4. Difference between string buffer and string builder
  • Ans. 

    StringBuffer and StringBuilder are both used to manipulate strings, but StringBuffer is thread-safe while StringBuilder is not.

    • StringBuffer is synchronized, making it safe for use in multi-threaded environments.

    • StringBuilder is not synchronized, making it faster but not thread-safe.

    • StringBuffer is preferred when multiple threads are involved, while StringBuilder is preferred for single-threaded scenarios.

    • Both classes p...

  • Answered by AI
  • Q5. What is MVC
  • Q6. What are the annotation used in RESTFULL web services
  • Ans. 

    Annotations used in RESTful web services

    • 1. @Path - Specifies the URI path for the resource

    • 2. @GET - Specifies that the method handles HTTP GET requests

    • 3. @POST - Specifies that the method handles HTTP POST requests

    • 4. @PUT - Specifies that the method handles HTTP PUT requests

    • 5. @DELETE - Specifies that the method handles HTTP DELETE requests

    • 6. @PathParam - Binds the value of a URI template parameter to a method paramete...

  • Answered by AI

Interview Preparation Tips

Skills: Java Application Development

Skills evaluated in this interview

Interview Preparation Tips

Round: Technical Interview
Experience: Technical on paper test questions:(dis was only for 12 among d 26 shortlisted ppl after apti...others directly had interviews)
5 wer selected in this test who wer nw sent for interviews
TECHNICAL INTERVIEW: (pls list the questions asked in all the rounds)
26 shortlisted after apti (14 directly for interviews & 12 had one more technical on paper test...mentioned above)
der wer min 2 technical rounds for each of them...max were 5

- You are given course dependencies
A->B,C
B->D
C->A
D->nothing
The above dependencies mean...if you want to take course A...you should take courses B and C first....To take B,Course D must be taken first....D is an independent course and can be taken without any prior requirements.
Now you are told these dependencies.Come up with an appropriate data structure to represent these dependencies.Then write a code that finds out all the courses that the student can take up...in this case the student can first take course D because its independent.Now that course D has been taken he can next take up B as it depends on B alone...But the courses A and C can never be taken because they depend on each other...So here all the courses that can be taken are B and D.
After i wrote the code....he asked for all possible test cases
-Given an array of length N....It can be filled with nos. only from 1 to N....find which nos are repeated in the array
-Given pointers to two nodes in a binary tree....find their least common ancestor...each node has pointer to only the parent node...not the left and right child..
-In a binary tree(Not necessarily a BST)...suppose the weight of any node is defined as the product of the key value of the node and the level of the node(Root at level 1)...find the node with maximum weight in the binary tree
-A sorted array of size n is right circularly rotated k times and this rotated array is given to you as input...Find out the value of k in log n time .
-There are some processes running at time T....and there are processes running at time T+30.
You have to find out
1)Which processes died at time T+30,which were alive at time T
2)Which are the new processes at time T+30,which were not there at time T
3)Which are the processes that were there at time T and are still running at time T+30
What data structure will you use to represent the process lists and write code to find out the answers to the 3 questions above
-Given a binary search tree...and a target sum...starting at the root...which all paths add up to the target sum?...if there are multiple paths....return the path with least no. of nodes.


College Name: Veermata Jijabai Technological Institute, Mumbai [ VJTI ]

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I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

(3 Questions)

Round duration - 90 minutes
Round difficulty - Medium

There were 33 questions in total. The objective questions were simple.

  • Q1. 

    Sort Big List Dates Problem Statement

    Mary is an enthusiastic party-goer who struggles with remembering event dates. Help Mary by sorting a given list of event dates in an ascending order.

    Example:

    Inpu...
  • Ans. 

    Sort a list of event dates in ascending order based on year, month, and day.

    • Sort the list of dates based on year, then month, and finally day.

    • Use a sorting algorithm to rearrange the dates in ascending order.

    • Ensure the constraints are met for each date in the list.

  • Answered by AI
  • Q2. 

    Pair Sum Problem Statement

    You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.

    Note:
    ...
  • Q3. 

    Maximum Sum Problem Statement

    Given an integer N, your task is to recursively break it into three integer parts: N / 2, N / 3, and N / 4. You need to compute the maximum sum possible by dividing the numbe...

  • Ans. 

    Given an integer N, recursively break it into three parts and find the maximum sum possible.

    • Recursively divide N into N/2, N/3, and N/4 to find the maximum sum

    • Compare the sum obtained by dividing N with the sum of N itself

    • Return the maximum sum for each test case

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMorgan Stanley interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more

Final outcome of the interviewRejected

Skills evaluated in this interview

I appeared for an interview before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

Technical Interview round with questions based on DSA.

  • Q1. 

    Duplicate Integer in Array

    Given an array ARR of size N, containing each number between 1 and N-1 at least once, identify the single integer that appears twice.

    Input:

    The first line contains an integer...
  • Q2. 

    Sum Root to Leaf Numbers

    You are given an arbitrary binary tree consisting of N nodes, each associated with an integer value from 1 to 9. Each root-to-leaf path can be considered a number formed by concat...

  • Q3. 

    Topological Sort Problem Statement

    You are given a directed acyclic graph (DAG). Your task is to perform topological sorting of the graph and return any valid ordering.

    Explanation:

    A directed acyclic g...

Round 2 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical interview round with questions based on DSA.

  • Q1. 

    LCA of Binary Tree Problem Statement

    You are given a binary tree consisting of distinct integers and two nodes, X and Y. Your task is to find and return the Lowest Common Ancestor (LCA) of these two nodes...

  • Q2. 

    Rotated Array Minimum Finder

    You are provided with a sorted array that has undergone 'K' rotations (the exact value of 'K' is unknown). A rotation involves shifting each element of the array to the right,...

  • Q3. 

    Maximum Binary Tree Construction Problem

    Given an array TREE of 'N' unique integers, construct a maximum binary tree using the following rules:

    1. The root of this tree is the maximum number in TREE.
    2. T...
  • Ans. 

    Construct a maximum binary tree from an array of unique integers following specific rules.

    • Find the maximum number in the array to set as the root of the tree.

    • Recursively construct the left subtree with elements before the maximum number.

    • Recursively construct the right subtree with elements after the maximum number.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMorgan Stanley interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: The test was for two and half hours where 1 hour was for general aptitude, 1 hr was for coding aptitude(either on java or C or C++as you choose) and 1/2 an hour for two coding questions.

Round: Technical Interview
Experience: In technical round they asked puzzles, aptitude questions and basic C coding. I was asked to write the code for two questions(one was on sort and search) and was asked the logic of two questions.They asked basics of linked lists, stacks, queues. Infact they were not very interested in the syntax and were pressing on the logic

General Tips: Being a non software branch students is not at all a problem. The company took 4 interns where 3 were from core branches. The fact that we had to work in JAVA and most of us didn't know JAVA, the company only looks for aptitude and ability to learn. So if you don't know anything, tell frankly that you don't know that part, rather than guessing. Be thorough with what you know and confidentially answer all the questions.
Also do not be tensed and take things lightly, if the interviewer is joking. Be candid.
Skill Tips: Learn basics of coding from books . Aptitude can be done from sites likes geeks for geeks, etc. The level of aptitude is not very high and infact the coding aptitude is also theoretical and does not involve in depth knowledge.
Skills:
College Name: NIT Surathkal
Are these interview questions helpful?

Interview Preparation Tips

Round: Test
Experience: Online Test (General aptitude, C aptitude ,Programming problems).

General Tips: Study basics of C and DSA well. Utilize the last summer vacations for studying for placements. Be confident and Honest.
Yes it is challenging and exhausting. It tests your patience. But final reward is also great so we must keep going toward it.
Skill Tips: Online coding sites such as Codechef, etc. Narasimha Karumanchi for data structures and algorithm will help in preparation.
Skills:
College Name: NIT Surathkal

I applied via Campus Placement

Interview Questionnaire 

2 Questions

  • Q1. How can a chemical Engineer help citi?
  • Ans. 

    A chemical engineer can help Citi by providing expertise in process optimization, risk management, and sustainability.

    • Optimizing Citi's manufacturing processes to reduce costs and increase efficiency

    • Developing risk management strategies to ensure compliance with environmental regulations

    • Implementing sustainable practices to reduce Citi's environmental impact

    • Providing technical expertise in chemical reactions and materi...

  • Answered by AI
  • Q2. He asked me about my JEE Rank, preparations

Interview Preparation Tips

Round: HR Interview
Experience: I had done many web and android apps. They asked me about my institute experience, things I have done here. It was an easy walk for me.

Skills: SQL, Java Programming
Duration: 2
College Name: IIT Madras

Interview Questionnaire 

11 Questions

  • Q1. What is the difference between multi tasking, multi processing and multi programming operating systems with examples ?
  • Ans. 

    Multi tasking, multi processing, and multi programming are different approaches to managing tasks in an operating system.

    • Multi tasking allows multiple tasks to run concurrently on a single processor.

    • Multi processing involves multiple processors running tasks simultaneously.

    • Multi programming allows multiple programs to be loaded into memory and executed concurrently.

    • Examples of multi tasking operating systems include Wi...

  • Answered by AI
  • Q2. Tell me about memory allocation (stack vs. heap)?
  • Q3. You have two threads one printing even numbers in order and other odd numbers. Design an algorithm so that it prints numbers in natural order?
  • Ans. 

    Use a shared variable and synchronization mechanisms to ensure natural order printing of numbers.

    • Create two threads, one for printing even numbers and the other for printing odd numbers.

    • Use a shared variable to keep track of the current number to be printed.

    • Implement synchronization mechanisms like locks or semaphores to ensure only one thread can access the shared variable at a time.

    • Each thread should check if it is i...

  • Answered by AI
  • Q4. Print a matrix in spiral order?
  • Ans. 

    Printing a matrix in spiral order

    • Start from the first element and print it

    • Move in a spiral order towards the center of the matrix

    • Repeat until all elements are printed

  • Answered by AI
  • Q5. Thread class and Runnable Interface?
  • Ans. 

    Thread class and Runnable Interface are used for multithreading in Java.

    • Thread class is a predefined class in Java that provides methods to create and control threads.

    • Runnable interface is used to define a task that can be executed by a thread.

    • Thread class implements Runnable interface.

    • Thread class provides more control over threads than Runnable interface.

    • Example: Thread t = new Thread(new MyRunnable()); t.start();

    • Exa...

  • Answered by AI
  • Q6. What’s the difference between a Linked List and an ArrayList and give me an example of when to use which?
  • Q7. Questions of OS concepts?
  • Q8. A role play scenario was given. With a clear instruction on I don’t need to know the basis and the hypothetical assumption was presented. I was told that I was expected to respond to the given scenario, in...
  • Q9. Why are you interested in a career in investment banking?
  • Q10. Why have you chosen to apply to J.P. Morgan?
  • Ans. 

    I have chosen to apply to J.P. Morgan because of their reputation, global presence, and opportunities for growth.

    • J.P. Morgan has a strong reputation in the financial industry.

    • They have a global presence with offices in multiple countries.

    • The company offers various opportunities for career growth and development.

    • J.P. Morgan is known for its innovative technology solutions in the financial sector.

    • I am impressed by their ...

  • Answered by AI
  • Q11. Have you ever made a mistake? Tell us about it?
  • Ans. 

    Yes, I have made a mistake in my previous project.

    • I underestimated the complexity of a task and ended up missing the deadline.

    • I failed to properly test a feature, resulting in a bug that affected user experience.

    • I accidentally deleted an important file without having a backup.

    • I misunderstood a requirement and implemented a feature incorrectly.

  • Answered by AI

Interview Preparation Tips

Round: Test
Total Questions: 1

General Tips: Interview Process: Aptitude test, followed by 3 rounds of interview. Interview process was very good. Just be positive to clear the interview.
Check this link before appearing for interview with JP Morgan. It will help  -----
Skills: Algorithm, Data structure, Stack
College Name: Na

Skills evaluated in this interview

Bajaj Finserv Interview FAQs

How many rounds are there in Bajaj Finserv Android Developer interview?
Bajaj Finserv interview process usually has 2 rounds. The most common rounds in the Bajaj Finserv interview process are One-on-one Round.
How to prepare for Bajaj Finserv Android Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Bajaj Finserv. The most common topics and skills that interviewers at Bajaj Finserv expect are Kotlin, MVVM, Android, Mobile Application Development and Flutter.
What are the top questions asked in Bajaj Finserv Android Developer interview?

Some of the top questions asked at the Bajaj Finserv Android Developer interview -

  1. Duplicate elements in a array with o(n) complexi...read more
  2. Coroutines in deta...read more

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Overall Interview Experience Rating

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based on 1 interview experience

Difficulty level

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Duration

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