HCL Java realtime interview | Java 8 interview questions and answers, springboot microservices kafka
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- Опубликовано: 10 апр 2022
- This video contains java interview questions, Microservices interview questions and answers, spring springboot interview questions.
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1)what is immutability
2)How can we create our own Custom Immutable class
3)If the immutable class dont have setter methods then how can you set the
4)values for the instance fields
5)The getter method will return cloned object or the actual object
6)Life cycle of a Thread
7)What is the use of wait() and sleep()
8)Difference between wait() and sleep()
9)Use of join()
10)Use of yield()
11)what is ConcurrentHashMap
12)ConcurrentHashMap vs HashTable
13)What is Garbage Collection
14)If I create a Object where it will be created
15)Different parts of the Heap Memory
16)Which JDK version you are using
17)Features of Java 8
18)What is default methods in Java 8
19)What is Singleton class
20)How we can create our own Singleton Class
21)How can prevent a Singleton class from getting cloned-
we need to implement/override the clone() method and throw an exception
CloneNotSupportedException from the clone method
22)How can we break the singleton pattern
23)Serialization and Deserialization issues with Singleton
24)what design patterns you have worked on?
25)What is factory design pattern- Spring Bean Factory
is example of Factory Design Pattern
26)Default scope of Bean
27)Different types of Bean Scopes
28)What is Dependency Injection
29)Types of Depedency Injection- Constructor and Setter Injection
30)How polymorphism works in Spring- explain @Qualifier
31)Have you worked on Spring Security? How it works
32)Advantages of Microservice over Monolith
33)How do you scale the Application using Kubernetes
34)How will you run the Docker image and deploy..tell the commands
35)Can we achieve auto scaling using Docker or is there any limitation
36)Can you tell the services in your microservices application
and how do they interact with each other
37)What is Pub/Sub in Kafka
38)How many subscribers can subscribe to the Topic
37What is the role of Broker in Kafka
38)Diff between Power Mock and Mockito
39)Methods supported by Stream- filter(),map(),flatMap()
40)How can you find the second largest number in a list of integers
41)Avg salary of each department using stream
42)How can you convert the list into Map
43)Method references in Java 8
44)JPA specification executor- u can use criteria
45)What is executor in context of Threads
46)How can you remove the duplicate elements from the array without using
any built in classes or methods
47)How do you reverse a singly linked list
48)what is doubly linked list,circular linked list
49)2nd highest salary using sql
50)git commands, rebase
Thanks
Thank you bro😊
Thanks lot for your effort
Thanks bro
Thanks Bro
Thanks for sharing such video. Helps a lot in understanding
We have a tree which gives a pure mango healthy.
But software industry changed changed this concept..
Now the Mango tree is same and they are demanding different fruit to the tree..
Now they need , Banana , Apple, grapes, watermelon, some time they want chees piza also..
So that Tree is and Employee or engineer who is trying to dilever all frouts
One of the best comment. Loved it thank u
That is why life of Software Engineer is so stressful..
😂 Well said so I'm not able to get selected anywhere 😢 I have 7 years of relevant experience..
@@AvinashJ21 Bhai resume bhej de ..
@thesquirrels9390 sure please share mail id .. thanks a lot
@1. Intro ..
@2. Java: Immutable ? User Defined Immutable Class?
@3 Shallow Cloning .
@4 Hierarchy of Thread
@5. Use of wait() .... Notify...
@6. Sleep ? ...... Use of Join().. How do you control the Thread ?
@7. What is .... & . ConcurrentHashMap.
@8. ConcurrentHashMap vs HashTable
@9. G.C ? Where it is stored ?,,,,
@10 .New Features of Java.8. Default Method ?
@11 Singleton Class ?
@12. What all things you take care to IMPL Singleton..
@14. How do you avoid Clone ? Ans. overide .... Is there any other way to break it ?
@15 . Serialization and Deserialization - There is Issue Right ? We have to maintain single Object
@16 . Design Patterns ? Factory DP ? Loose Couple Purpose
@17..
@18. DI.
@19. Types of DI ?
@19. ?
@20. interfaces
@21
This was the toughest interview i had ever seen. I almost died after listening to the interview questions, thank god to doctors who recovered me.
Hahaha
@Java Techies
@Java Techies
@@JavaTechies❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
❤❤
I also once had multiple rounds of interviews with HCL and it was very lengthy, this interview was not too easy but not too tough as well. Some of the questions were specifically to your project related technology like kafka but overall your interview was good 👍
Thanks
Do more latest videos, Thanks u so much
Thank you so much, i will try to do few more
Can u upload real time programming
Mansi developers don't have to know everything as there are other groups like Devops and Integration teams who are hired to do their job. If you are not comfortable with that skill just don't mention that or even try to attempt answering those which are not in your comfort zone. The JD that is given to you before interview should be referred. However once you get a chance you can upgrade yourself. Eg Kubernetes, AWS, Docker, Nginx, Istio etc
Where are you placed now Mansi ?
such a theoritical interview
Yes
Its look like 8 years of Experience interview going on, definitely it's not for 5 years and that too in HCL
Haha, its for 5 years only
maine full stack java developer ka course kiya hai kya mujhe full stack java developer ke jagah core java developer ki job milegi kya???
Mil jayegi, you should be strong in backend
Logging kibana or logstash?
I as an Architect am interviewed more on AWS, Microservice culture which has different search patterns not related to any programming language, Resilience, Scalability, Observability etc
These questions in interviews are not even asked
It's a very easy interview
Thanks
So tell what's a pojo class😂
Who is pojo 🤣🤣
Listening. No questions on how you configured Kafka on Production? How many Partitions were configured? How many messages processed per sec? How many Kafka topics used? Without screen share it's difficult to understand what you are writing
Nice
lol all this in the interview and the day to day task are literally if else and loops. maybe lists and maps.
Correct
Correct un necessary wasting time using google
typical desi interviewer in USA for service based company.
Imagine having this when annual ctc is 17k USD.!
Basically basically actually actually … uff😫😫
Apologies for that
This was the real-time interview that you had recorded?
Yes
@@JavaTechies Nice 🙂
One day,I will marry this girl.. before people get enraged.. I only mean it as a compliment.. 😀
Too much for a 5 yr exp. candidate
No, it’s required, this much a candidate should know
Girl knows so much theory but can't reverse a linked list.
This girl can do that also, but no body can be perfect all the time.
CTC offered???
Expected: 14 lpa
@@JavaTechies With this much of knowledge and years of experience, you should be expecting bit higher.
@@JavaTechies 😅😅 I thought it's like 25-30 LPA
'basically' was really irritatng
Yeah I understand but sometimes due to nervousness it happens
YOE?
4
@@JavaTechies OK
I just want to learn 'Spring boot and Micro services' from Scratch(I have knowledge on Spring)..pls suggest me..
Go for microservices course by In28minutes
Typical service based interview. Same core Java questions are being asked from last 15 years.
Same Java also using from last 20 years
You selected or not?
Selected