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Wissen Technology Java Developer Interview Questions, Process, and Tips
Updated
7 Aug 2024
Top Wissen Technology Java Developer Interview Questions and Answers
- Q1. Parent class has run() and walk() . Parent run() - calls walk() Child Class overrides Parent class Inside run() - calls super.run() Walk() - calls super.walk In main clas ...read more
- Q2. 2. What will happen if hashcode only returns a constant? How will it affect the internal working of the HashMap?
- Q3. How to sort a list of students on the basis of their First name?
17 Wissen Technology Java Developer Interview Experiences
63 questions found
Sort by:
Popular
S Chakra
Interview experience
Excellent
Difficulty level
Easy
Duration
Less than 2 weeks
Result
Selected
I applied via Naukri.com and was interviewed in Feb 2023.
3 Interview Rounds
1
Resume Shortlist Round
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.
View all tips
2
One-on-one Round (18 Questions)
- Q1. 1. Can we keep an object of a Class as key in HashMap? View Answers (3)
- Q2. 2. What will happen if hashcode only returns a constant? How will it affect the internal working of the HashMap? View Answers (3)
- Q3. 3. What if we do not override Equals method ?
What is we do not override Hashcode method? View Answers (2)
- Q4. 4. How to make a class immutable? View Answers (1)
- Q5. 5. If we have a mutable object inside immutable class then how will you handle it? View Answers (3)
- Q6. 6. Advantages and Disadvantages of immutable class? View Answers (2)
- Q7. How to sort a list of students on the basis of their First name? View Answers (6)
- Q8. Object level Lock vs Class level lock? View Answers (1)
- Q9. If there is a class inside it we have a method - public void synchronized M1() - inside method - Thread.Sleep(500); We create 2 different object of the class an...read more View Answers (1)
- Q10. Using Java 8 find the sum of squares of all the odd numbers in the arraylist. View Answers (2)
- Q11. LeetCode 1 - Two Sum. View Answers (1)
- Q12. LeetCode 20 - Valid Parantheses View Answers (1)
- Q13. Parent class has run() and walk() . Parent run() - calls walk() Child Class overrides Parent class Inside run() - calls super.run() Walk() - calls super.walk In...read more View Answers (5)
- Q14. LeetCode - 532 , K diff pairs Add Answer
- Q15. What is Serialization? View Answers (1)
- Q16. Synchronized Map vs Concurrent hashmap View Answers (2)
- Q17. Write a query to find name of authors who have written more than 10 books.
Table - Bookauthhor
Column - Book
Column - Author View Answers (4)
- Q18. Write a program to return the length of the longest word from a string whose length is even? View Answers (4)
3
HR Round (3 Questions)
- Q1. How much salary expectations? View Answers (1)
- Q2. Do you have location constraints? View Answers (1)
- Q3. Why are you leaving this company? View Answers (1)
Interview Preparation Tips
Topics to prepare for Wissen Technology Java Developer interview:
So focus on Core Java and Multi threading.
Java 8.
Practice easy and medium level questions from leetcode
- DSA
- Core Java
- Java 8
- Hashmap
- Multithreading
- OOPS
- Synchronisation
- Serialization
So focus on Core Java and Multi threading.
Java 8.
Practice easy and medium level questions from leetcode
Skills evaluated in this interview
Interview experience
Bad
Difficulty level
Hard
Duration
4-6 weeks
Result
No response
I applied via Referral and was interviewed in Jul 2024.
5 Interview Rounds
1
Coding Test Round
Five MCQs, 2 moderate-level+1 hard level coding,2 SQL queries.
2
Assignment Round
Hard-level 6 Data structure based questions to write the code.
3
Technical Round (2 Questions)
- Q1. Flattenedarray code Add Answer
- Q2. Nested array objects to single array. View Answers (1)
4
One-on-one Round (2 Questions)
- Q1. Reverse the list node with head node having multiple values. View Answers (1)
- Q2. Hard-level string question to write the code. Add Answer
5
Technical Round (2 Questions)
- Q1. Advanced Java and database Add Answer
- Q2. Advanced Data structures Add Answer
Skills evaluated in this interview
Get interview-ready with top interview questions
Interview experience
Bad
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via Naukri.com and was interviewed in Jun 2024.
1 Interview Round
1
One-on-one Round (1 Question)
- Q1. Median of two sorted arrays - Interviewer expects you to write internet solution not the optimal one 🤦♂️ Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Salary package might be overwhelming, but i suggest you not to apply for the company. I personally have given 2 rounds excellently but still got rejected as they've got their candidates by then. If you've limited positions why to invite 100s of folks for F2F(hyderabad) ?
No employee perks, bad company culture & no work life balance.
I asked interviewer to tell about company's culture & work life balance. Even interviewer has nothing to mention some good.
Pathetic thing is that interviewer didn't introduced themselves & asked randomly searched internet questions without proper knowledge.
If there is 0 star rating I would've given that.
Again I'm telling you don't even apply for the company, they lure you by saying you'll be working for morgan stanley or goldman sachs. Don't fall into that pit.
No employee perks, bad company culture & no work life balance.
I asked interviewer to tell about company's culture & work life balance. Even interviewer has nothing to mention some good.
Pathetic thing is that interviewer didn't introduced themselves & asked randomly searched internet questions without proper knowledge.
If there is 0 star rating I would've given that.
Again I'm telling you don't even apply for the company, they lure you by saying you'll be working for morgan stanley or goldman sachs. Don't fall into that pit.
Interview experience
Poor
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via Naukri.com and was interviewed in Jun 2024.
2 Interview Rounds
1
Coding Test Round
Had multiple choice question on java, code snippet, two coding question (easy), one sql query
2
Technical Round (3 Questions)
- Q1. One sql query to find the highest salary from each department from Employee database. View Answers (1)
- Q2. Merger two sorted array, View Answers (1)
- Q3. Flatten an array View Answers (1)
Interview Preparation Tips
Topics to prepare for Wissen Technology Java Developer interview:
- hashmap
- java basics
Skills evaluated in this interview
Wissen Technology interview questions for designations
Interview experience
Bad
Difficulty level
Moderate
Duration
-
Result
No response
I applied via Job Portal
2 Interview Rounds
1
Aptitude Test Round
Java coding questions and mcq
2
Technical Round (1 Question)
- Q1. Java basics and oops Add Answer
Interview experience
Good
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (5 Questions)
- Q1. What is the contract between hashCode and equals method? View Answers (2)
- Q2. Features introduced in Java 8 View Answers (1)
- Q3. What are the ways to start a thread View Answers (1)
- Q4. What will happen if you start a thread which is already running View Answers (2)
- Q5. Explain about the join and sleep method View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Just listen to a lot of mock interview or original interview videos to get a hang of how an interview will be and even to check your knowledge and recall the things which you have learned.
Skills evaluated in this interview
Java Developer Jobs at Wissen Technology
Interview experience
Excellent
Difficulty level
Easy
Duration
-
Result
-
I was interviewed in Jul 2024.
1 Interview Round
1
Technical Round (2 Questions)
- Q1. What is Kafka ? View Answers (1)
- Q2. What are JOINS in MySql View Answers (1)
Skills evaluated in this interview
Interview experience
Poor
Difficulty level
Moderate
Duration
2-4 weeks
Result
No response
I was interviewed in Apr 2024.
2 Interview Rounds
1
Technical Round (1 Question)
- Q1. Java questions on multithreading, data structures, and algorithms Add Answer
2
Technical Round (1 Question)
- Q1. Puzzle questions, complete the code questions Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - They will waste your time
Interview experience
Average
Difficulty level
Moderate
Duration
2-4 weeks
Result
Not Selected
I applied via LinkedIn and was interviewed in Oct 2023.
3 Interview Rounds
1
Aptitude Test Round
1 hr. of the test, 10 questions on core Java concepts, 2 SQL queries, 2 coding question
2
One-on-one Round (4 Questions)
- Q1. 2 coding questions, 1 SQL queries Add Answer
- Q2. Sorting in the string View Answers (1)
- Q3. Priority queue in the array View Answers (1)
- Q4. Left join on two table Add Answer
3
One-on-one Round (2 Questions)
- Q1. 1 coding question on the stack, this interviewer was not good, he did not show any attention in the interview. Add Answer
- Q2. 1 question on the stack Add Answer
Interview Preparation Tips
Topics to prepare for Wissen Technology Java Developer interview:
- Data Structures
- Algorithms
- oops
- SQL
- Core Java
Skills evaluated in this interview
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
No response
I applied via Walk-in and was interviewed in Jul 2023.
4 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
2
Coding Test Round
There is a hacker rank test for 60 minutes Link provided by the time of 1st round live screen share with hr taking screenshot for govt id proof.
Test has a 8 question in that 5 are mcqs and 2 are coding and 1 is SQL query.
3
One-on-one Round (1 Question)
- Q1. F2F interview was there. Basic of Multithreading in java. Split array into chunks of given size. Class level and Object level synchronization. Given a nested ar...read more View Answers (1)
4
One-on-one Round (8 Questions)
- Q1. After this we have a 3rd F2F round-
What is Multithreading in java? Add Answer
- Q2. Convert String camel case to snake case. View Answers (1)
- Q3. Write a Java program using multithreading to print below output: n=10
Thread-1 : 1
Thread-2 : 2
Thread-3 : 3
Thread-1 : 4
Thread-2 : 6
.
.
Thread-1 : 10 View Answers (1)
- Q4. Suggestion on best way for Java collection to store csv data. and if needed any operation on how to do? there are millions of data need to store in java collect...read more View Answers (1)
- Q5. How to detect a loop into LinkedList? View Answers (1)
- Q6. Difference between Callable and Runnable Class? View Answers (1)
- Q7. How to create Thread in Java and What are the ways? View Answers (1)
- Q8. Write a SQL Query for having student table Name Subjects Marks Data like- abc Eng 19 abc Phy 17 abc Chem 20 xyz Eng 16 xyz Phy 18 xyz Chem 12 ..... output shoul...read more Add Answer
Interview Preparation Tips
Topics to prepare for Wissen Technology Java Developer interview:
- Java Collections
- Core Java
- HashMap
- Synchronization
- Logic
- Java Array
Skills evaluated in this interview
Interview experience
Average
Difficulty level
Hard
Duration
-
Result
Not Selected
I was interviewed in Apr 2024.
2 Interview Rounds
1
Coding Test Round
It was on online platform consists of 7 questions, 2 coding each of 40 marks, 1 SQL query- 20 marks and 4 MCQ's 5 marks each
2
Technical Round (1 Question)
- Q1. To merge the array and print it in sorted manner , time complexity of code what you have written, optimise it if required.
More on Map, System design questions Add Answer
Wissen Technology Interview FAQs
How many rounds are there in Wissen Technology Java Developer interview?
Wissen Technology interview process usually has 2-3 rounds. The most common rounds in the Wissen Technology interview process are Technical, One-on-one Round and Coding Test.
How to prepare for Wissen Technology 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, Multithreading, Algorithms, Data Structures and RDBMS.
What are the top questions asked in Wissen Technology Java Developer interview?
Some of the top questions asked at the Wissen Technology Java Developer interview -
How long is the Wissen Technology Java Developer interview process?
The duration of Wissen Technology Java Developer interview process can vary, but typically it takes about less than 2 weeks to complete.
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Interview Process at Wissen Technology Java Developer
based on 14 interviews in last 1 year
2 Interview rounds
- Coding Test Round
- Technical Round
View more
Top Skills for Wissen Technology Java Developer
People are getting interviews through
based on 11 Wissen Technology interviews
Job Portal
Referral
Company Website
WalkIn
Campus Placement
55%
18%
9%
9%
9%
High
Confidence
?
High Confidence means the data is based on a large number of responses received from the candidates.
Java Developer Interview Questions from Similar Companies
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18%
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Wissen Technology Java Developer Reviews and Ratings
based on 2 reviews
Rating in categories
|
Software Engineer
557
salaries
|  ₹7 L/yr - ₹24 L/yr |
|
Senior Software Engineer
528
salaries
| ₹12.3 L/yr - ₹34.5 L/yr |
|
Principal Engineer
254
salaries
| ₹15.5 L/yr - ₹41 L/yr |
|
Associate Software Engineer
161
salaries
| ₹5 L/yr - ₹16 L/yr |
|
Senior Principal Engineer
116
salaries
| ₹20 L/yr - ₹48 L/yr |
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