Core Java, Spring Boot, Microservice Interview Questions | Cognizant L1 Technical Interview

[@cloudtech5260]

For Live Java Interview Preparation! Register Now www.cloudtechsolutions.in/courses/crack-java-backend-interview-6527dad5e4b0f21aa6921714

[@gabrielfono844]

this guy perform pretty good I really appreciate transparency.

[@shashwatgupta2184]

you both are rocking man!!...Although, its scripted but its helping us to know various interview questions...keep it going..

[@MohdShahban-g7r]

when a class implements two interfaces with the same default method, Java requires you to resolve the ambiguity by overriding the method in the implementing class. like this : public class DefaultTestInterface implements I1,I2{ public static void main(String[] args) { I2 t1 = new DefaultTestInterface(); t1.print(); } @Override public void print() { I2.super.print(); } } interface I1{ default void print() { System.out.println("I1 print() called"); } } interface I2{ default void print() { System.out.println("I2 print() called"); } }

[@learningcomputersciencewit5936]

Mir da...tomar national award paoa uchit...eto versatile character tmr...just god gifted...❤

[@rexsam3134]

Such basic questions are rarely asked. Loosely coupling microservices is much more different than what you spoke String is not a primitive datatype. Zuul is used with older Spring Boot and JDK 1.8 public interface InterfaceA { public String abc(); } public interface InterfaceB { public String abc(); } public class InterfaceABEg implements InterfaceA, InterfaceB { I want you to write how you can use super here }

[@Aniketjoshi9]

It gives compile time error..

[@rexsam3134]

@@Aniketjoshi9 refer to 3.30 answer. Is his answer correct? These mock interviews are programmatically not correct and there are no cross question asked. So does the interviewer knows what he is asking?

[@ankitabhishek9871]

The interface question had the default methods in it. So if you are implementing both the interfaces and you want to access the method inside interface a, then you have to override that method inside your class. Otherwise java will give ambiguity error. The only way it will work is to override the method present in the interface.

[@ankitabhishek9871]

Also the answer given by the candidate was not correct.

[@aivideocreatesrandom]

They are making interview harder than that this is like a entry level

[@ramt9447]

Thread goes waiting state by calling wait() or sleep () also

[@cloudtech5260]

Yes!! Thanks Ram!!!

[@Ellenki_007]

Collections array list,hash map,linked list.

[@siddharthsekharsingh4263]

I got placed in both Cognizant and Deloitte. Thank you.

[@Ellenki_007]

Str is sequence of characters to represent name address email id etc

[@merickutan1332]

How do you define a string in java? The answer could be: Using primitive datatype string, and using the String Wrapper class which the guy explained how to define them.

[@RealSlimShady-um6gf]

String primitive datatype,???

[@cloudtech5260]

String is not a primitive datatype. int, float and double are primitive data type. 👍

[@munaswamy6595]

Brother please upload more videos 👍

[@manoharpatil7037]

bro as a fresher i know the answer of almost all questions except springboot can u suggest me some source for springboot im from mechanical final year students...

[@vinay2841]

You can start watching videos of Abhilash Panigrahi or Durgesh KT ,Java Techie

[@nayanankmahajan]

Java Techie is the best source. I mastered Springboot in 2 months following him. If you look at too many resources it will just confuse and slow you. Find 1 and put all your trust in it.

[@gabrielfono844]

I have an interview for Senior backend engineer using springboot , java, microservices at SAIC but the link you shared for java interview preparation is not working sir. Do you have any idea for SAIC ? I appreciate your feedback

[@Ellenki_007]

default static and functional interfaces.

[@Ellenki_007]

Interface is contract.

[@ajaythombare1947]

Nailled it bro

[@Ellenki_007]

Literal and object i think

[@preetyshaw2116]

Is it fir freshers interview?? We can't expect this type of questions from 3 years experience guy??

[@anilmajhi5404]

Anyone explain loose coupling in 2 microservices? 21:41

[@ashutoshaman7358]

Look out for async comunication between microservices

[@sanathrayala2745]

That guy did it with no sweat 😳

[@sandyjk2210]

Because it's not real interview.

[@Rkreddy123]

Good one

[@amolmandlik]

I think this is a Mock interview

[@sensiblesenseisama5851]

I have worked on some spring boot projects by myself with intermediate knowledge in java, so how can i apply anywhere as a fresher???

[@dhanajihubale5770]

Horizantal scalling explaination was wrong?

[@Ellenki_007]

Interface is not clearly understood

[@amarnathkumar2564]

Amazing bro

[@vineethyadav4221]

For freshers what is the package for springboot if we are good at spring boot? and if we done a project on springboot is it a plus point ?

[@cloudtech5260]

For freshers, different companies have different criteria for selection. But the general idea is aptitude + programming language basics. In some companies, they ask DSA. The package generally ranges from 3-4 LPA.

[@maheshr7827]

Edo Edo cheppu swamy...... correct but way of answer is not correct......Abstraction in Java... If you are not allow to create a object or else the class which is not complete implementation means partially implementation called abstraction......

[@Ellenki_007]

Pool and heap

[@Ellenki_007]

Why abstraction is asked to everyone in every Java interview?

[@cloudtech5260]

Abstraction is the key feature of any programming language. When we abstract the logic and just expose the input and output a lot of system complexity can be suppressed. Hope that made sense. 👍

[@ashwinajmery6071]

@@cloudtech5260 definitely make sence 🔥

[@ramcharanPhirangi]

Did he use Chat GPT on the screen? o_o

[@start1learn-n171]

TQ

[@manjunathareddy2546]

Please make videos on microservices

[@cloudtech5260]

Yes sure. Will do!!

[@DRBB123]

Scripted but Wow l learnt a lot

[@kvhareesh635]

What about salary

[@RealEyes24]

That is discussed with hr before the technical interview.

[@谭俊-d5b]

correct

[@AYJ959]

nice

[@garvisrobot9274]

They have posted 4 interview with same guy. They are foolingpeople

[@cloudtech5260]

Hello, These are mock interviews.

[@akaavis944]

Waiting for him to say that he's not sure about any one of those questions 😭😳🙄

[@aakashgupta7211]

It is scripted man.

[@deepakkumarsharma4021]

he was not able to answer correctly the question "how to deploy the application if you are scaling application horizontally"

[@murageshyadwad296]

​@@aakashgupta7211😊😊

[@murageshyadwad296]

​@@aakashgupta7211❤❤❤❤❤❤❤❤❤❤

[@prashantshinde3219]

Salary kitna logo bhai 😂 from 3 iditos😂

[@Ellenki_007]

Baap-->beta-->betay ka beta inheritance

[@Ellenki_007]

I1.super.print(); I2.super.print();

[@Raj-dy2cn]

I dont get y are we calling interface method which has no body? We will override it in the implementing class and call it right?

[@JavaHub018]

@@Raj-dy2cnInterviewer said interfaces are having default methods not abstract methods therefore he replied I1.super.print(); & I2.super.print();

[@Raj-dy2cn]

@@JavaHub018 Yeah man I figured it out later, its one of those ur never gonna use scenarios