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Senior Java Developer Interview Questions

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5,566 senior java developer interview questions shared by candidates

1. What projects you have worked 2. Explain Abstract class and interface? How you implemented the project 3. Can we create an object in the interface 4. Features of Java 8 5. What is the functional interface 6. Types of annotations used in hibernate 7. SQL joins 8. What is the composite key? 9. Use of having clause 10. SQL query to fetch count of department based on department name 11. How to make class as immutable 12. Explain the final , finally and finalize 13. Syntax of hashmap 14. When we used arraylist and when we used linked list? Which is better for inserting the data? 15. Output of the following program String s = "Hello"; s.concat("world");
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Senior Java Developer

Interviewed at NeoSOFT

3.6★
Mar 28, 2024

1. What projects you have worked 2. Explain Abstract class and interface? How you implemented the project 3. Can we create an object in the interface 4. Features of Java 8 5. What is the functional interface 6. Types of annotations used in hibernate 7. SQL joins 8. What is the composite key? 9. Use of having clause 10. SQL query to fetch count of department based on department name 11. How to make class as immutable 12. Explain the final , finally and finalize 13. Syntax of hashmap 14. When we used arraylist and when we used linked list? Which is better for inserting the data? 15. Output of the following program String s = "Hello"; s.concat("world");

a codility test consists of 3 Questions , React , Spring , Problem Solving . After 1 week i made technical interview in egypt it was online (Spring , OOP ) example of Code and refactor to follow SOLID principles also interview in France few Technical and discussion
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Senior Java Developer

Interviewed at Cegedim

3.4★
Nov 19, 2023

a codility test consists of 3 Questions , React , Spring , Problem Solving . After 1 week i made technical interview in egypt it was online (Spring , OOP ) example of Code and refactor to follow SOLID principles also interview in France few Technical and discussion

How good is he in Collection framework? - this is not difficult but this type of questions helps to understand communication skill and thought clarity of a candidate, which I learnt later on after joining them. How good he is in presenting his point of view.
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Senior Developer Java/J2EE

Interviewed at Rebaca Technologies

3.5★
Aug 18, 2014

How good is he in Collection framework? - this is not difficult but this type of questions helps to understand communication skill and thought clarity of a candidate, which I learnt later on after joining them. How good he is in presenting his point of view.

In first round, questions were average of java 8 stream programming logic, spring boot and java. 2nd round was a bit challenging but not much. Question were mostly of micoservice design pattern 1. CQRS, Saga,api gateway, circuit design,async and sync communication. 2.java design pattern singleton, proxy, builder. 3. What's the difference between dependency inversion and injection. 4.I mentioned Kafka so some questions were also of Kafka like what is partitions,offsetid. 5.Microservice design pattern. 6. What are pros and cons of microservice architecture. 7. Microservice design principles. 8.Springboot annotations. 9.Jpa and hibernate annotations.
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Senior Java Developer

Interviewed at Brillio

4★
Jul 21, 2022

In first round, questions were average of java 8 stream programming logic, spring boot and java. 2nd round was a bit challenging but not much. Question were mostly of micoservice design pattern 1. CQRS, Saga,api gateway, circuit design,async and sync communication. 2.java design pattern singleton, proxy, builder. 3. What's the difference between dependency inversion and injection. 4.I mentioned Kafka so some questions were also of Kafka like what is partitions,offsetid. 5.Microservice design pattern. 6. What are pros and cons of microservice architecture. 7. Microservice design principles. 8.Springboot annotations. 9.Jpa and hibernate annotations.

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