133 Core Java Interview Questions Answers From Last 5 Years - The MEGA List
Time is changing and so is Java interviews. Gone are the days, when knowing the difference between String and StringBuffer can help you to go till the second round of interview, questions are becoming more advanced and interviewers are asking more deep questions. When I started my career, questions like Vector vs Array and HashMap vs Hashtable were the most popular ones and just memorizing them gives you a good chance to do well on interviews, but not anymore. Nowadays, you will get questions from the areas where not many Java programmer looks e.g. NIO, patterns, sophisticated unit testing or those which are hard to master e.g. concurrency, algorithms, data structures and coding.Since I like to explore interview questions, I have got this huge list of questions with me, which contains lots and lots of questions from different topics. I have been preparing this MEGA list from quite sometime and now It's ready to share with you guys. It contains interview questions not only from classic topics like threads, collections, equals and hashcode, sockets, but also from NIO, array, string, java 8 and many more.
It has questions for both entry level Java programmers and senior developers with years of experience. No matter whether you are a Java developer of 1, 2, 3, 4, 5, 6, 8, 9 or even 10 years of experience, you will find something interesting in this list. It contains questions which are super easy to answer, and also question which are tricky enough for even seasoned Java programmers.
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