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Ingegnere Del Software Java Interview Questions

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3,079 ingegnere del software java interview questions shared by candidates

1) What is the heap? 2) How hashmap is designed? 3) Mechanisms of thread-safety 4) Indexes 5) SOLID principles 6) How I would test the app from round 2 and which layers are critical to test? 7) How I would implement a specific feature - related to caching, scheduled calculations, etc. 8) How I implemented exceptions handling? 9) How I would design a database with a lot of data persisting/querying in the database? 10) ...
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Java Software Engineer

Interviewed at Seven Bridges

4.1★
Aug 15, 2021

1) What is the heap? 2) How hashmap is designed? 3) Mechanisms of thread-safety 4) Indexes 5) SOLID principles 6) How I would test the app from round 2 and which layers are critical to test? 7) How I would implement a specific feature - related to caching, scheduled calculations, etc. 8) How I implemented exceptions handling? 9) How I would design a database with a lot of data persisting/querying in the database? 10) ...

Theoretical - transactions -java propagation types for transactions -spring security: oath2, refresh token -bean scope: singleton, prototype, default -@component vs @service -type of injection: constructor, setter, which one and why one is better -400 error -PUT vs PATCH -object vs class -OOP principles -public vs protected vs private access -abstract class vs interface -anonymous class - default method -final var, final method, final class -try catch, finally -types of exception -types of join -database relations -db index
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Java Senior Software Engineer

Interviewed at Fortech SRL

3.5★
Mar 27, 2023

Theoretical - transactions -java propagation types for transactions -spring security: oath2, refresh token -bean scope: singleton, prototype, default -@component vs @service -type of injection: constructor, setter, which one and why one is better -400 error -PUT vs PATCH -object vs class -OOP principles -public vs protected vs private access -abstract class vs interface -anonymous class - default method -final var, final method, final class -try catch, finally -types of exception -types of join -database relations -db index

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