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Monthly Archives: July 2016

Software developer interview questions: The soft part

28 Jul

Episode 28

            Soft is not a short from software here. In the previous article we went through technical aspects of Java developer job interview. This time we are going to explore the non-technical part or soft part or HR part or however you want to call it (it’s not just Java developer now, of course, but software developer in general). Sometimes you will talk with your potential team leader, project manager, line manager, other kind of manager, someone from human resources department or just a guy from dev team (hey, they can talk too!). They will try to find out if you will fit the organization, project or, in general, if you are the guy they would like to work with. I feel that developers tend to trivialize this part and think that if they are technically strong, nothing can stop them. However soft skills and personality plays a decent role in the recruitment process. After all, no one wants to work with an asshole, even if it’s technically brilliant asshole.

Up to the point

            So, I’m going to try to recollect these types of questions I’ve been asked on my recent interviews. As before, I’m not going to answer them, partly because I’m lazy and partly because Read the rest of this entry »

 
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Posted by on July 28, 2016 in Misc, Recruitment

 

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Java developer interview questions: The hard part

14 Jul

Episode 27

            Since I’ve attended several job interviews recently, I’ve decided to share some experience with you. Why hard part? Because this article is going to be about technical stuff. I’m going to write something about soft part later. Technical interview will probably look a bit different depending on your programming background. If you are new, expect more core language / programming questions. Later on emphasis probably shifts more towards your actual work experience, technologies, frameworks and practical problem solving skills. I’m not going to answer questions (I’m lazy), just provide list of topics you might want to review if you are going to a Java interview.

General object oriented programming / design core

  • Explain polymorphism, encapsulation, cohesion, coupling.
  • Difference between inheritance and aggregation.
  • What does “clean code” and “technical debt” mean to you?
  • Describe some refactoring techniques.
  • Explain SOLID principles.
  • Other principles like KISS, DRY, YAGNI, law of Demeter etc.
  • What design patterns do you know, explain some.
  • What design anti-patterns do you know?
  • How would you design an amphibious vessel / math expression evaluator / a dragon?
  • What sorting algorithms do you know and what’s their computational complexity? Which would you choose having some knowledge about the data you are given?
  • Write a code that:
    • calculates a factorial of given number
    • does a Fizz Buzz
    • inverts order of letters in words of given sentence.
    • checks if given string is a palindrome.
    • enumerates all permutations / variations of given set of characters

Read the rest of this entry »

 
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Posted by on July 14, 2016 in Misc, Recruitment, Technology

 

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