Principal Design Engineer Interview Questions

10,174 principal design engineer interview questions shared by candidates

1. How does arraylist work internally in java? if you were to implement array list how would you implement. Collections interface implementations and its differences. Whats the difference between set and list interface. Is Hashlist a thread safe or not. 2. Is there time difference in the array list is accessed, if the index is to the begining vs last. 3. How does HashMAp? Deep discussions about that, as well as HashMaps internal implementation details of O(n).
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Principal Software Engineer

Interviewed at NetApp

3.8
Mar 18, 2014

1. How does arraylist work internally in java? if you were to implement array list how would you implement. Collections interface implementations and its differences. Whats the difference between set and list interface. Is Hashlist a thread safe or not. 2. Is there time difference in the array list is accessed, if the index is to the begining vs last. 3. How does HashMAp? Deep discussions about that, as well as HashMaps internal implementation details of O(n).

(This was asked by someone in Engineering) Why should I as a product developer listen to you when you make recommendations about product strategy? I am much more familiar with the product and I have been working with our customers far longer than you have.
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Principal Product Manager

Interviewed at CA Technologies

3
Mar 19, 2009

(This was asked by someone in Engineering) Why should I as a product developer listen to you when you make recommendations about product strategy? I am much more familiar with the product and I have been working with our customers far longer than you have.

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