When the experience of a Java Programmer grows in the years e.g. when it goes from beginner years ( 2 to 4) to more experience or sort of senior level ( 5 to 7 years), Core Java Interview Questions also changes a bit. Of course, basics like data structure, algorithms, and object-oriented programming remains same, but types of questions will become more advanced and their answers will definitely need to be more detailed and accurate. I often receive queries about core Java questions asked to a senior developer of 5 to 6-year experience, or, sometimes, I am going for an interview of senior Java developer, what kind of questions I should expect. This sometimes puzzles me, that once you become senior, you automatically starts taking part in the interview, and you should have an idea of what to expect on Interviews, but at the same time, I can understand that having an idea of questions before going on Interview, helps preparation. Of course, you are not going to get a question like the one you have faced on 2 to 3 years level Java Interviews, but It also depends on different rounds of Interviews.
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