TreeSet Class With Custom Comparator

While a basic TreeSet sorts its elements in their natural order (e.g., alphabetical for strings, ascending for numbers), sometimes you need a different order. This is where custom comparators come in. A comparator is an object that implements the Comparator interface and defines a custom order for sorting elements. By providing a custom comparator when constructing a TreeSet, you can control how the elements are compared and ordered.

• Custom Order: Allows sorting in a non-natural order (e.g., descending order, or sorting by a specific property of an object).