Being a Java developer, you must be familiar with the importance of Collections in Java. Undoubtedly, Collections are the most important for you. You can't imagine even a small project in Java without the use of Collections. Moreover, in order to work in an industry level project, you must have a good knowledge on Collections in Java. Apart from going through theoretical concepts multiple times, it is highly advisable that developers need much coding practice on collections. In this article, we will be doing theoretical & code practice on ‘Collections in Java’ in the form of MCQs that are frequently asked in the interviews as well. Definitely, you must find this article beneficial whether it is an interview or a written