3 Wissen Technology Senior Java Developer Interview Questions & Answers | Complete Prep Guide 2025

Wissen Technology Senior Java Developer Interview Experiences

2 interviews found

Senior Java Developer Interview Questions & Answers

Anonymous

posted on 15 Dec 2023

Interview experience

Excellent

Difficulty level

Process Duration

Result

Round 1 - Resume Shortlist

Pro Tip by AmbitionBox:

Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.

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Round 2 - Technical

(2 Questions)

Q1. What is oops and its feature

Ans.

Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.

Features of OOP include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation allows objects to hide their internal state and require all interaction to be performed through an object's methods.
Inheritance allows classes to inherit attributes and methods from other classes.
Polymorphis...

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Q2. Internal working of hashmap

Ans.

HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.

HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
To retrieve a value, the key is hashed again to fi...

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Skills evaluated in this interview

Calpion Software Technologies

Be part of a company where work compliments life, not consumes it.

Senior Java Developer Interview Questions & Answers

Anonymous

posted on 19 Feb 2022

I applied via Naukri.com and was interviewed in Jan 2022. There was 1 interview round.

Round 1 - Technical

(1 Question)

Q1. Can one use an Employee class as a key in a HashMap? (This is a very important question. Please cover this in depth) You are using a class from a library (say Student). You have a list of Student objects. ...

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Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare core java for 1st round and spring boot and MICROSERVICES basic well

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I have 7 YOE. from Delhi Current CTC - 9.25LPA + 75K varriable. Working Skillset is Kubernetes and Openstack. Current - 100% WFH 1. NTT Data- Noida Hybrid CTC... read more

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Software Developer Interview Questions & Answers

TCS

Ashish Kumar

posted on 15 Dec 2021

I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire

1 Question

Q1. Questions on Java,SQL,some trending technologies(IOT,Big data),pattern questions, programming questions with different approaches.

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Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics of DSA, have knowledge about the databases, some common dml ,ddl statements, programming knowledge of a particular language like C,Java, python,etc...have good command on oops concepts... little bit of frameworks knowledge will also help

Software Developer Interview Questions & Answers

TCS

Anonymous

posted on 18 Jun 2022

I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.

Round 1 - Aptitude Test

Round 2 - Technical

(1 Question)

Q1. Basic questions of java.

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Round 3 - HR

(1 Question)

Q1. Intro and other hr related questions.

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Interview Preparation Tips

Interview preparation tips for other job seekers - Cover the basic questions regarding the programming language.

Software Developer Interview Questions & Answers

Infosys

Anonymous

posted on 12 Apr 2022

I applied via Referral and was interviewed before Apr 2021. There were 2 interview rounds.

Round 1 - Aptitude Test

Puzzles, Psychometric Test

Round 2 - One-on-one

(1 Question)

Q1. Some water in 3 Jars question, you had to measure out 5L correctly

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Interview Preparation Tips

Interview preparation tips for other job seekers - Make the interview interactive, I got this input from another Senior. Before i went into the interview room the volunteers were telling all those who goes into Room No 1 is screwed. I was praying i don't get room no 1. But fortunately for me I got room no 1 because when the interviewer gave me the puzzle and handed over pen and paper he went back to relax his posture and when i explained i will fill the 5L Jar first, he immediately came forward to listen to me, at that moment i knew i got the job because i felt the previous candidates never made their interview interactive and that's why he went back to relax his posture.

Software Developer Interview Questions & Answers

TCS

Anonymous

posted on 29 Jun 2022

I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Aptitude Test

First round was coding as well as aptitude done together went well I guess focusing on codes helps a lot.

Round 2 - Technical

(1 Question)

Q1. 2nd round included tr and mr round went quite enegritic

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Interview Preparation Tips

Interview preparation tips for other job seekers - Resume skills matters a lot don't fill resume the technologies you don't even aware of

Software Developer Interview Questions & Answers

Infosys

Anonymous

posted on 19 Jun 2017

I was interviewed in Sep 2016.

Interview Questionnaire

3 Questions

Q1. Tell me about yourself

Ans.

I am a passionate software developer with experience in Java, Python, and web development.

Experienced in Java, Python, and web development technologies
Strong problem-solving skills and ability to work in a team
Completed multiple projects including a web-based inventory management system

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Q2. Simple coding questions..Basically pattern.

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Q3. And also they will ask about your projects.

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Interview Preparation Tips

Round: Test
Experience: 60 multiple choice questions so have to manage time carefully.
Tips: Have to give equal importance to all the sections..So try to do well in all section.
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical + HR Interview
Experience: Don't panic...Only write those things that you know in your resume.

Skills: Smart Coding
College Name: Jaypee Institute Of Information Technology, Noida

Software Developer Interview Questions & Answers

Infosys

Anonymous

posted on 30 Jun 2017

I was interviewed in May 2017.

Interview Preparation Tips

Round: Test
Total Questions: 20

Round: Group Discussion
Duration: 1 hour

Skills: Coding Skills And Knowledge On Data Structures

Software Developer Interview Questions & Answers

Infosys

Anonymous

posted on 6 Jul 2017

I was interviewed in Jun 2017.

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes

Skills: Engineering Basics

Software Developer Interview Questions & Answers

Infosys

Anonymous

posted on 29 Jun 2017

I was interviewed in May 2017.

Interview Preparation Tips

Round: Group Discussion
Duration: 7 hours

College Name: Andhra university

Wissen Technology Interview FAQs

How many rounds are there in Wissen Technology Senior Java Developer interview?

Wissen Technology interview process usually has 1-2 rounds. The most common rounds in the Wissen Technology interview process are Technical and Resume Shortlist.

How to prepare for Wissen Technology Senior Java 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 Wissen Technology. The most common topics and skills that interviewers at Wissen Technology expect are Java, Spring, Spring Boot, Design Patterns and Multithreading.

What are the top questions asked in Wissen Technology Senior Java Developer interview?

Some of the top questions asked at the Wissen Technology Senior Java Developer interview -

What is oops and its feat...read more
Internal working of hash...read more
Can one use an Employee class as a key in a HashMap? (This is a very important ...read more

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Wissen Technology Senior Java Developer Interview Questions and Answers

Wissen Technology Senior Java Developer Interview Experiences

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