Mindtree|Real Interview|Experienced 6 years|Microservices|Springboot

Mindtree interview questions for experienced java. Real Interview.
Interviewee experience in IT industry is 6 years.
Microservices|Springboot|Rest API|Java 8
Interview questions for companies like UST Global,TCS,Mindtree,Infosys,Infogain,Tech Mahindra,Capgemini,Cognizant etc.
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[@breddy5215]

Questions:
Background -> current technologies
Features of spring boot and its adv
How autoconfiguration works in spring boot
How do you create spring boot app
If i defined sql but did not add any properties to connect to db what would happen
What props are to be given -> this is the autoconfig he was referring to earlier
@componentscan - what does this do
@springbootapps ?
How do you handle properties
Different types of properties for diff files -> profiles related Q
How do you deploy apps in springboot
Jnuit test cases
Why do you write junit test cases
@restcontroller
@service & @repository?
What will happen if you do @service instead of @repository
How do you test your application - rest service - postman
Which http protocol to use to update db to change an attribute, how do you achieve this
Patch & put protocols
Core java
Diff btw primitive and non-primitive
What are all the primitive data types
Why are we defining string in 2 ways. How does memory work in these 2 cases
Why is it maintaining at 2 places?
Where will be a new object stored- heap or stack?
How do you handle exception in java
What will happen if we only do try or finally, but do not do catch
What is diff between error and exception
How do you improve on errors, how do you handle errors, what are the errors faced till now, how did you resolve them, how do you rectify ‘out of memory error’
What are the different types of exceptions you have faced till now
What is order of exception in java, which is highest
Use of collections in java
What are different types of collections you used till now
When do you use set and map
How is key stored in hashmap

[@goldgold4943]

Thanks

[@AvinashJ21]

Thanks

[@ramt9447]

J unit purpose: to cover all the scenerios in at the time of bug fix.means at the time of bug fixing sometimes existing features will loss

[@AkshayPatil-fo8mm]

Thanks

[@rahul-sinha]

Error indicates a serious problem that mainly occurs due to the lack of system resources, it occurs at run time. Error cannot be caught or handled.
Example- Java.lang.StackOverFlow, java.lang.OutOfMemoryError
Exceptions are the problems which can occur at both runtime and compile time. It mainly occurs due to the code written by the developers. Exception can be recovered by using the try-catch block and throws keyword.
There are two types of exceptions i.e. checked and unchecked.
Unchecked Exceptions : ArrayIndexOutOfBoundException, NullPointerException, ArithmaticException
Checked Exceptions : SQLException, IOException

[@sahilnandrekar4959]

Exception is the mistake of programmers and those are recoverable...
Error are not mistakes of programmers, Errors are generated by system configuration mistakes,
basically Errors are not recoverable.

[@yogeshkalalkar579]

what if we explain the rest api flow from swagger documentation

[@RohitSharma-ke1bq]

PUT, PATCH etc.. are not protocols. They are verbs in HTTP protocol.

[@aakashgupta7211]

There is no question from Microservices.

[@PramodKumar-kg3sd]

SIR ? in IT after 6 years of exp who calls SIR ?

[@manigandangovindaraj4969]

let it be calling sir will not be prob .

[@PramodKumar-kg3sd]

@@manigandangovindaraj4969 not a problem but it sets wrong example for others..

[@diamondrock4945]

selected??

[@pallabLosing]

Any interview isn't complete with writing program 😁😁

[@PramodKumar-kg3sd]

why interviewer sounds arrogant ?