What is difference between List and Set in Java is a very popular Java collection interview questions and an important fundamental concept to remember while using Collections class in Java. Both List and Set are two of most important Collection classes Java Program use along with various Map implementation. Basic feature of List and Set are abstracted in List and Set interface in Java and then various implementation of List and Set adds specific feature on top of that e.g. ArrayList in Java is a List implementation backed by Array while LinkedList is another List implementation which works like linked list data-structure. In this Java tutorial we will see some fundamental difference between List and Set collections. Since List and Set are generified with introduction of Generics in Java5 these difference also application to List and Set.
This article is in continuation of my earlier post on Collection e.g. Difference between HashMap vs HashSet, Difference between HashMap and Hashtable and Difference between Concurrent Collection and Synchronized Collection. If you haven't read them already you may find them useful.
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