This post will shortly introduce to you all known Java loops: for, while, do while, for each. Yes-yes, Java as many other programming languages has its own loop constructions. So the time has come to find out or just remind you how can every above mentioned loop be used.
When you are going to change your job you must be ready for the interview. Yet not only on this occasion you should know answers to theoretical questions. A real professional keeps fundamental knowledge in mind even not being aware of it. One of such things in Java is the difference between abstract class and interface.