Senior Java Developer Interview Questions

5,537 senior java developer interview questions shared by candidates

1) Can you tell something about the most challenging project in your recent experience? 2) You received a task with hard deadline in 3 days, which was probably under estimated. What would you do? 3) Something orange which sounds like parrot, what is it?
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Senior Java Developer

Interviewed at Kyriba Corp.

4.1
Mar 7, 2021

1) Can you tell something about the most challenging project in your recent experience? 2) You received a task with hard deadline in 3 days, which was probably under estimated. What would you do? 3) Something orange which sounds like parrot, what is it?

Concurrency: The interview included questions on concurrency, which assessed my understanding of handling multiple threads simultaneously. Thread Management: Questions on thread management were posed to evaluate my knowledge of creating, controlling, and managing threads. Executor Service: The discussion included Executor Service, emphasizing my familiarity with this framework for managing threads in a clean and efficient manner. Map Interface: I was asked about the Map interface, which tested my ability to work with key-value pairs and different implementations of maps. HashCode and Equals Methods: There were questions on hashCode and equals methods, focusing on their importance in ensuring the correct behavior of hash-based collections.
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Senior Java Developer

Interviewed at Deutsche Börse Group

4
Jun 11, 2024

Concurrency: The interview included questions on concurrency, which assessed my understanding of handling multiple threads simultaneously. Thread Management: Questions on thread management were posed to evaluate my knowledge of creating, controlling, and managing threads. Executor Service: The discussion included Executor Service, emphasizing my familiarity with this framework for managing threads in a clean and efficient manner. Map Interface: I was asked about the Map interface, which tested my ability to work with key-value pairs and different implementations of maps. HashCode and Equals Methods: There were questions on hashCode and equals methods, focusing on their importance in ensuring the correct behavior of hash-based collections.

Java 8 stream API, using it in scenarios. How to make an object immutable, fail fast and fail safe iterators, Internal working of a hashmap. JavaScript coercion related questions, What features were introduced in ES6, Arrow functions
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Senior Java Developer(Dojo)

Interviewed at Volkswagen Group Digital Solutions India

4.4
Jun 27, 2021

Java 8 stream API, using it in scenarios. How to make an object immutable, fail fast and fail safe iterators, Internal working of a hashmap. JavaScript coercion related questions, What features were introduced in ES6, Arrow functions

Write a JavaScript / HTML program that lets the user open a CSV file from disk, displays it in a text box, processes it, and displays the output in another text box. ... Write a Java-based program (command line) that reads text from a file, splits it into words at spaces and newline characters and constructs an (unbalanced) binary tree where each leaf node represents a unique word. ...
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Senior Java Developer

Interviewed at NavVis

4.3
Apr 23, 2019

Write a JavaScript / HTML program that lets the user open a CSV file from disk, displays it in a text box, processes it, and displays the output in another text box. ... Write a Java-based program (command line) that reads text from a file, splits it into words at spaces and newline characters and constructs an (unbalanced) binary tree where each leaf node represents a unique word. ...

1. i Have an arary with Lakhs of values in it with Ascending order. I want to get the index of a particular nukber How to retrieve the index as fast as much 2 Explain Intermediate Operations 3. Ex[lain Terminal Operations 4. Explain functional interface 5. I have an employee object with emp id and Location. How to retrive the Emp id based on the location?
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Senior Java Developer

Interviewed at FedEx

3.5
Oct 8, 2025

1. i Have an arary with Lakhs of values in it with Ascending order. I want to get the index of a particular nukber How to retrieve the index as fast as much 2 Explain Intermediate Operations 3. Ex[lain Terminal Operations 4. Explain functional interface 5. I have an employee object with emp id and Location. How to retrive the Emp id based on the location?

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