import java.util.TreeSet;
public class Main {
public static void main(String[] args) {
TreeSet tSet = new TreeSet();
tSet.add("1");
tSet.add("2");
tSet.add("3");
tSet.add("4");
tSet.add("5");
System.out.println("Lowest value Stored in Java TreeSet is : " + tSet.first());
System.out.println("Highest value Stored in Java TreeSet is : " + tSet.last());
}
}