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Java Senior Interview Questions

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6,034 java senior interview questions shared by candidates

1) Technical screening 2) Leetcode-like questions, 7 questions in a row. 1 hard 4 medium and 2 easy 3) On-site interview. Many questions about Java, Concurrency, Spring, Protocols and questions about SQL, draw an SQL schema for some workflow, and many questions about data structures and indexes
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Senior Java Software Engineer

Interviewed at Adobe

4.1★
Feb 5, 2025

1) Technical screening 2) Leetcode-like questions, 7 questions in a row. 1 hard 4 medium and 2 easy 3) On-site interview. Many questions about Java, Concurrency, Spring, Protocols and questions about SQL, draw an SQL schema for some workflow, and many questions about data structures and indexes

1. Could you describe your recent project. (Architecture, role), What was most difficult during development. 2. If we have static method in class, is it thread safe? 3. How can you assess your java knowledge? from 1 to 10 4. Java memory management 5. write method that will reverse string 6. We have a in-bound and out-bound queue and between is a multithreaded logic that threads take a messages from in-bound queue and write to outbound queue. Propose solution that messages from outbound queue will be available in he same order as data in in-bound queue 7. Then he told me about 2 roles avilable in the bank, and asked me which one I prefer and why.
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Senior Java Developer

Interviewed at J.P. Morgan

3.9★
May 15, 2018

1. Could you describe your recent project. (Architecture, role), What was most difficult during development. 2. If we have static method in class, is it thread safe? 3. How can you assess your java knowledge? from 1 to 10 4. Java memory management 5. write method that will reverse string 6. We have a in-bound and out-bound queue and between is a multithreaded logic that threads take a messages from in-bound queue and write to outbound queue. Propose solution that messages from outbound queue will be available in he same order as data in in-bound queue 7. Then he told me about 2 roles avilable in the bank, and asked me which one I prefer and why.

Written Test :: topics from core JAVA,Spring,Hibernate,Junits,Spring Boot. Technical Round : 1.which one to choose : static or singleton pattern. 2. need to overload any method . will it not create confusion with the names. 3. what is cyclic dependency.Impact of cyclic dependency on applcation. how to get rid of it? 4.describe any design pattern .why chose that pattern and its advantages 5.what is is-a and has-has a relationship 6.write code for singleton pattern.
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Senior Java Developer

Interviewed at J.P. Morgan

3.9★
Jun 10, 2018

Written Test :: topics from core JAVA,Spring,Hibernate,Junits,Spring Boot. Technical Round : 1.which one to choose : static or singleton pattern. 2. need to overload any method . will it not create confusion with the names. 3. what is cyclic dependency.Impact of cyclic dependency on applcation. how to get rid of it? 4.describe any design pattern .why chose that pattern and its advantages 5.what is is-a and has-has a relationship 6.write code for singleton pattern.

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