Sorted Set with TreeSet

In this problem: You will create a program using TreeSet from the collections framework to automatically sort elements and use navigation methods like first, last, and subsets.

Learning Objective: Understand TreeSet's automatic sorting behavior and navigation methods such as first/last/subSet

Overview

TreeSet is a Set implementation that automatically sorts elements in natural order (ascending for numbers, alphabetical for strings). In addition to duplicate elimination, it provides navigation methods like first(), last(), and headSet().

Specifications

• Create a TreeSet and add integers
• Print all elements in sorted order
• Print minimum using first() and maximum using last()
• Print elements less than 50 using headSet(50)

Output Format

Sorted: [10, 25, 30, 50, 75, 90]
First: 10
Last: 90
Less than 50: [10, 25, 30]