Overview of Set Interface

The Set interface is a fundamental part of the Java Collections Framework. It represents a collection that does not allow duplicate elements. Unlike lists, which maintain the order of insertion and allow duplicates, a set is all about uniqueness. This is especially useful when you need to ensure that no two elements in a collection are the same.

• Uniqueness: Ensures that each element in the set is unique.
• No Guaranteed Order: Most set implementations do not preserve insertion order, though some (like LinkedHashSet) do, and others (like TreeSet) maintain a sorted order.