Chapter 6.3 | Collections Framework | Set Interface and Implementations | Java tutorial

The Set interface in Java is part of the Java Collections Framework and is used to store unique elements, meaning that it does not allow duplicate values. It extends the Collection interface and behaves like a mathematical set. Sets are unordered, meaning they do not maintain the insertion order of the elements. The main purpose of a Set is to prevent duplicates and to allow quick lookups, making them useful in various situations like checking membership in a group, avoiding repetition, and more.