๐Ÿš€ Interview Questions from Wissen Technology ๐Ÿš€

Recently, I had an interview with Wissen Technology, and I wanted to share some questions they asked. These cover fundamental concepts in OOPs, Java, SQL, and DSA, which are essential for any developer preparing for technical interviews.

Part-1
1๏ธโƒฃ OOPs โ€“ The Four Pillars
2๏ธโƒฃ HashMap vs HashSet
3๏ธโƒฃ Primary Key vs Candidate Key
4๏ธโƒฃ Indexes in SQL

likehelpful
Posting as :
works at
You are currently posting as works at

Yoe?

3 years

Hi folks, I need some suggestions.

I joined as a Trainee Engineer under an apprenticeship program in a core domain. However, I always wanted to move into IT, so after completing one year of the apprenticeship, I left the company and enrolled in a one-year Java Full Stack course.

Now, I'm finding it difficult to get opportunities in development roles. Given the current situation, should I consider starting my IT career through other roles like Application Support, or should I keep waiting for the right opportunity in development?

Related Posts

Are promotions and raises visible on DNet? Or do you have to talk with your coach?

like

What are your thoughts about putting an explanation for the current gap (as in, I havenโ€™t been working for several months) on your resume, LinkedIn profile or cover letter? If you think it should be included in one of these places, how would you do it?

like

$RNWK ๐Ÿš€ is it next GME?

likeupliftingfunny
like

How much should someone expect with almost 11 years pf experience joining as a VP in the technology team in JP Morgan?

like

Hello everyone,

Can anyone give me an idea of well are the hikes while joining in Capgemini and after at what interval of time there are best chances of increment.

Thanks

How much would you expect a AD of forecasting at big pharma to make? Glassdoor says 161 average but that feels low to me.

like

Not as good as Moskowitz, but my low FODMAP meal prep since my stomach hates me!

Post Photo
likesmart

Anyone have any recommendations for a good exterior car wash?

like

When did you tell work about your pregnancy?

Hi Fishes,
My interview is scheduled on Monday for azure data engineer profile.
Experience 3 years.
Any leads what type of questions they ask,any folks who has given interview recently please reply ASAP.
Thanks in advance.

like

Infosys Limited Hi Fishes , my LWD at infosys was on 06 october . I have still not received nills clearance yet . Even after multiple remainder mails from my personal email Id and from final clearance team to bills clearance , no action is being taken . is there anything else i could do here ? Infosys Limited Infosys

NYC for worktrip. What are the best restaurants in west village for fine dining / raw bar or lobster at the moment?

like

Hi - I am a career pivot from higher education into tech and have final round interviews for a DEI Coordinator role (which I'm super excited for). I am meeting with three people that I would be partnering with for the job and it was shared with me that these interviews will mainly be behavioral as well as questions on my technical skills. Does anyone have any resources to help me prepare for this? Anything is greatly appreciated!

like

I had the first round with a consulting firm and it takes them more than a month to arrange the final round and the recruiter is not being responsive. Is that normal?

like

Good afternoon everyone,

I am switching careers from Clinical Social Work into Project Management. I possess many transferable skills and a PM certification. I'd love a referral to PM roles at Google, Meta, Amazon or other Big Tech Companies. I'd also love to connect with other PMs in the tech space on LinkedIn if interested!

like

Looking to make a career move soon. Thoughts on going for an in-house role vs an agency?

like

Any science teachers here?! Dissecting frogs in eighth grade made me want to learn everything I could about anatomy, that's why I'm a science teacher, and it's not the same to teach kids online as it is in person

like

Best value wool dress pants ?

Looking to do a solo trip for about a week somewhere thatโ€™s driving distance from San Francisco (anything within ~10 hours) this July/August. Looking for some good hiking and food. Last year I did Bend and it was great!

Any recommendations? Wouldโ€™ve liked to do Yosemite, but pretty hard to find places to stay at this point.

like

Additional Posts in Java Developers

I have 2 year and 10 months experience in TCS. I am a Java developer, and know java, spring boot, rest, spring MVC, oracle database. And I have to serve 90 Daya notice period.
Please help me to get a job.

like

URGENT: Can anyone refer me for an entry-level software engineer/ Trainee Software engineer role (Java preferred)? I need a job on an urgent basis as my current organization has asked me to put down my papers due to changed business requirements (read layoffs) and has given me 30 days to find a new job. And I would really appreciate you guys if you can provide me with any help in this situation.

#layoffs

Thanks in advance

like

What is the best resource to learn springboot from scratch in depth.
(Other than the amigoscode 2hr video) thanks in advance.

Hi Guys,

I have two offers from Cognizant & State Street with the same package.
YOE : 6 +
Which one is better for the long term.

How much can a 2 yoe in java+aws profile expect from Infosys for a position in the same tech stack?

like

Infosys BPM is offering the position of Technology Support Specialist-Cluster 3, I am having 2.8 years of experience working as a software developer. should I join or not? need your valuable advice?

like

Hi,
Accolite Digital is actively hiring for the following roles: 
Java โ€“ Across Levels
DotNet โ€“ Across Levels
React Native- 4-10 years
Architect โ€“ Candidates working as Java or DevOps or Big Data or Solution architect with more than 10yrs of Experience and others as well.

Please message me directly if you are interested or apply from the following referral link as per your skill set:https://social.eduthrill.com/e/z6GJmiItYrb?referralCode=FQS2FRKL

Hello ,
I am btech fresher recently got placement but i got a domain where no coding is required and more of functional work is there . So i want to switch to JAVA . Can you please tell me how should i proceed , in what order and what should i learn and any resources?? I have good knowledge of Core Java and DSA.

Hello all,

I am java Fsd developer with total experience of 3.5 years. I am currently serving notice period and looking for job change.

like

Hi fishes
I have experience of 2 years in oracle plsql and i am looking for a switch

but i want to work in Java development and I have learned spring mvc, spring boot and I have good knowledge on core java, collections

Will be it be good decision to directly get a job as a experienced candidate by telling I have experience on Java(2years)
or
I shouldn't lie about my prior experience on oracle .

Thanks in advance for your valuable suggestions

like

Hi Fishes, How much time does Ericsson take to send either selection or rejection mail after 1st technical interview.

Ericsson

like
like

I have 13+ yoe in java, springboot, microservucrs, which cloud I should learn aws, azure or gcp

like

Hi Fishies, Is there anyone who recently got interviewed with Gartner for Java Developer position need to know interview experience and questions , Thanks in Advance

like

Hi, how are you all,
Just to confirm is there any opportunity for java spring boot.
Total 1+ year of experience for any location.
Please refer my profile.

like

Hi fishes, I'm a Java developer:
YOE- 3
CTC- 7 lpa
Working in a MNC service based org.
I am looking for a job in a product based organisation and my company is offering a 2 week client visit in Europe somewhere around oct-nov. Should I stay for that will it add any value? Or should I just give my papers (resign) and focus on looking at opportunities outside?
I need a better financial state till what can I aim for?

Hello All,
I have a total of 2.6 years of experience and 1.6 years relevant with the java and spring boot framework. Currently I am looking for a java backend developer positions. Any referral/suggestion would really be appreciated. I am available to join immediately.
Thanks in advance ๐Ÿ‘๐Ÿป

Below is my tech stack:

Core Java
Advance Java
Spring MVC
SpringBoot Framework
Hibernate Framework
Collection Framework
JDBC
REST api
MySQL
HTML/CSS

like

Hello fishes what is the demand of blockchain technology in the current market?

like

Hi all,

Please suggest.
I've 3 yoe in techno-functional domain.
I wish to go into technical (development) profile now, but not as a fresher. I want to continue with 3 yoe.
But the issue is, I have no (dev) project to show in interview as an 3 yoe person.

I've learned Java, springboot, restfulAPIs, kafka, but still hesitant to go for interviews as I do not have projects to discuss.

I shall be very thankful to you if you help me here.
How/where can i go to make projects now to justify 3yoe?

Hello everyone!

Want to hire ~10 professionals with the below mentioned profiles on an immediate basis:
1. Java Developer
2. React JS developer
3. Angular JS developer
4. Java Full Stack developer

CTC: 8-10 LPA (negotiable)
Experience: ~2 years
Location: Noida (WFH available)

What in your opinion would be the right source of hiring for such profiles?

New to Fishbowl?

Download the Fishbowl app to
unlock all discussions on Fishbowl.
That was just a previewโ€ฆ
Sign Up to see all discussions
  • Discover what itโ€™s like to work at companies from real professionals
  • Get candid advice from people in your field in a safe space
  • Chat and network with other professionals in your field
Sign up in seconds to unlock all discussions on Fishbowl.

Already a user?
Login here

Share

Embed this post

Copy and paste embed code on your site

Preview

Download the
Fishbowl app

See whatโ€™s happening in your industry
from the palm of your hand.

A phone with Fishbowl app

Scan your QR code to download
Fishbowl app on your mobile

Download app

Sign up for free to view this conversation on Fishbowl

By continuing you agree to Terms of Use and Privacy Policy

Already have an account? Log in

Sign up for free to continue using Fishbowl

By continuing you agree to Terms of Use(New) and Privacy Policy(New)
Messaging rates may apply

Already have an account? Log in

For account settings, visit Fishbowl on Desktop Browser or

General

Legal