Java Collection How to - Get lowest and highest value stored in TreeSet

Question

We would like to know how to get lowest and highest value stored in TreeSet.

Answer

 //from   ww w .  java  2  s .  c  om


import java.util.TreeSet;

public class Main {
  public static void main(String[] args) {
    TreeSet<String> tSet = new TreeSet<String>();

    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());
  }
}

The code above generates the following result.