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Senior Software Engineer Java Interview Questions

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95,857 senior software engineer java interview questions shared by candidates

The technical interview with a human being was standard stuff, multithreading, architecture, coding, similar boilerplate technical questions and a discussion of their current needs. At least up to this point I was still very interested in exploring the opportunity. Then things got stranger.
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Senior Software Engineer

Interviewed at SpaceX

3.8★
Oct 29, 2020

The technical interview with a human being was standard stuff, multithreading, architecture, coding, similar boilerplate technical questions and a discussion of their current needs. At least up to this point I was still very interested in exploring the opportunity. Then things got stranger.

1. Can you extend main method in Java? 2. Explain how hashmap works internally? 3. Relation between hash code and equals? 3. Difference between StringBuffer/StringBuilder? 4. Code to check the frequency of word occurrence? 5.Code to implement a country/state list generation logic? Follow-up - country name can have aliases 6.Spring bean wiring.
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Senior Software Engineer

Interviewed at Sophos

3.7★
Jan 18, 2016

1. Can you extend main method in Java? 2. Explain how hashmap works internally? 3. Relation between hash code and equals? 3. Difference between StringBuffer/StringBuilder? 4. Code to check the frequency of word occurrence? 5.Code to implement a country/state list generation logic? Follow-up - country name can have aliases 6.Spring bean wiring.

2 arrays with duplicate numbers on each ones... try to find the numbers not present in the other. How to make an efficient algorithm? (Although it was very difficult to even understand the task due to a bad explanation)
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Senior Android Developer

Interviewed at Huma

2.4★
Nov 1, 2018

2 arrays with duplicate numbers on each ones... try to find the numbers not present in the other. How to make an efficient algorithm? (Although it was very difficult to even understand the task due to a bad explanation)

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