Java Developer Interview Experience at Airtel || Interview Questions Asked

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🚀 Exploring New Horizons 🌈
In today's video, I'm thrilled to share my interview experience with Airtel as a professional with 3+ years of experience. From gearing up with essential preparation tips to wrapping up with my final thoughts, we'll embark on this exciting adventure together and uncover the beauty of new opportunities.

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[Do-while-loop]

00:01 Interview experience at Airtel for Java Developer position
02:37 Key Java interview topics: Java features, Stream API, Object class, multithreading, equals hash code contract
04:29 Interview questions asked in the first round
06:29 Interviewer stretched the second round due to detailed questioning.
08:31 Interviewer asked scenario-based questions related to Rabbit MQ and Kafka
10:25 Preparing for a Java developer interview at Airtel
12:20 Importance of synchronization in multithreading
14:21 Coding questions on character frequency and unit tests
16:19 Java developer interview focuses on project experience and problem-solving skills.
17:59 Importance of Deployment Knowledge in Interview
19:43 Preparing for technical questions and project-specific queries during Java developer interview at Airtel
21:36 Basic knowledge of Java concepts is essential for success as a Java developer

[trixsearch]

first round(Duration 1hour)
1. what is anagram?
2. find the missing number from the unsorted list.
3. sort custom object using java8
4. oject class and there methods
5. multi threading, sleep and wait
6. equals hashcode contract, collections
7. diff between Hashset and ArrayList

springboot
1. retreive data using userid in an API
2. autowire username and user password
3. impletent two rest templates timeout with 30 s and 20s
4. cyclic dependency and implementation
5. how to extract unique key from JSON object?

ROUND 2(2 hours)
1. Implement comparable and coparator
2. How to handle and manage Exceptions
3. what method will this code invoke ?

main topic
1. Rabbit MQ, KAFKA
2. How will you handle bulk of msgs in Rabbit MQ?
3. If your queue size limit is reached, what will happen next?
4. Kafka, how will you handle when consumer can't process messages?
5. If your queue is down, how will the msgs be processed
6. What collection you use to access list of integers
7. How do you do logging in your project ?
8. What is concurrent exception, how to fix it?
9. Design pattern
10. If there is a multithreaded environment, how will you achive synchronisation mechanism ?
11. Why cache threadpool is used in Java ?


Project related questions
1. Configuation setup deploy a service
2. How to make hashmap synchronised
3. Count occurance of each character in a string using stream API
4. Unit test, how to handle unit test coverage? how to optimise code?
5. garbage collection, How to make obj unrefrenced in garbage collection?


ROUND 3(HR)
1. Tell us about project and any challenges during making my project?
2. What steps you take to overcame that issue?
3. How do you implement test cases
4. how do you do deployment (jenkins)
5. What are the steps you take when your pipeline is failed
6. have you ever done some big blunder?
7. if you have a good idea about project growth then how you will convence your team mates to implement that idea?


for any help go to my portfolio for Java development

or my github

you can also ask me in anything in linkedin

For instagram


Timeline by @adesh_khole
1 day ago
00:01 Interview experience at Airtel for Java Developer position
02:37 Key Java interview topics: Java features, Stream API, Object class, multithreading, equals hash code contract
04:29 Interview questions asked in the first round
06:29 Interviewer stretched the second round due to detailed questioning.
08:31 Interviewer asked scenario-based questions related to Rabbit MQ and Kafka
10:25 Preparing for a Java developer interview at Airtel
12:20 Importance of synchronization in multithreading
14:21 Coding questions on character frequency and unit tests
16:19 Java developer interview focuses on project experience and problem-solving skills.
17:59 Importance of Deployment Knowledge in Interview
19:43 Preparing for technical questions and project-specific queries during Java developer interview at Airtel
21:36 Basic knowledge of Java concepts is essential for success as a Java developer

[OmCanpe]

Great editing btw, quality of the video is superb and the interview experience ne bhi boht insights diye sister.
Mast interview laga tbh most of these things ke liye I'm prepped isliye thoda achha laga some things jaise spring boot mujhe padhne padenge although!
Baaki DSA and design patterns mai thoda decent hogya hu mai ab

[Sushant.Godbharle]

Thank you so much Kajal for sharing your experience it helped a lot for interviews preparation !!

[anshumansharma]

Congratulations Di, All the best for the future endeavours ❤🎉

[brilltwoant]

Super helpful! Thanks Kajal and all the best on your new role! The title of this video can also be Java Dev Interview questions (it covers almost everything one should prepare).

[MS-Videos]

congratulations and thanks for information by the way the camera quality is so good🤩

[UmesHKumaR-zjmp]

you are really a good person.. thanks for sharing all this..

[Yaduvanshi]

1. **Application Process**: The candidate applied through a drive organized by Airtel. They were informed about the interview format, which included multiple rounds on the same day focusing on data structures, algorithms, and project-related questions.

2. **First Round**:
- Questions covered basic concepts such as:
- What is anagram?
- Finding a missing number in an unsorted list.
- Sorting custom objects using Java.
- Multithreading concepts, specifically the differences between sleep and wait.
- Equals and hashcode contract.
- The interviewer asked about Spring Boot, including writing an API to retrieve user data and handling dependency injection.
- Additional topics included cyclic dependency resolution and extracting unique keys from JSON objects.

3. **Second Round**:
- It was longer than expected, lasting about two hours.
- Focused on advanced topics such as:
- Implementing a Comparator.
- Exception handling strategies.
- Output-based questions related to method overriding.
- Questions about RabbitMQ and Kafka, including handling bulk messages and scenarios where the queue size limit is reached.
- Discussing design patterns, especially the Singleton pattern.
- Questions on synchronization in multithreading environments and using thread pools.

4. **General Advice**: The candidate emphasized the importance of understanding core Java concepts (like collections, streams, and multithreading) and encouraged preparation around real-world scenarios, especially if mentioned in the resume.

5. **Outcome**: After completing both rounds, the candidate was selected for a final manager round, indicating the interview went well.

[deep]

Not hate anyone or gender but in most places in the IT sector in India Females have more chances to get selected in comparison to males.

[ummedsingh]

Thanks for sharing your experience, can you please share your resume.

[mayankraghuvanshi]

I have cracked Airtel X Lab offer twice 3 years back and for me the focus was more on problem solving DSA.

[hardikjain]

thanks for this amzing video. could u plz make a video on your resume

[susobhandas]

So interesting... Video. Watched whole 50+minute

[bharathsairaghavanalluri]

A suggestion to you, create a playlist and teach different languages in them. And use google ads and beta promotion to spread your videos to reach more views. Also make this interview questions and latest asked questions ❤

[AhmadAli-xhxd]

Can you please make a separate video for important questions or
you may start a series of important questions of different topics of java and frameworks mostly asked.

[premmane]

Congratulations 🎉

One question
Does now a days Kotlin is more preferred then java for spring boot back-end development if organization has front end Android native kotlin code

[AdityaYouTube]

Can u just make this type of video like in their cover all java developer syllabus step by step and all previous year asking interview questions

[technology]

Thanks for taking time to share with us.
Btw aaisa kya hai jo important ya bahot jaada important nhi hai?😅😊

[DashingChannel]

Thank you Kajal for sharing your interview experience in such details. It will be going helpful for all who preparing for the internship or jobs in this summer.