Get lowest and highest value stored in Java TreeSet example

This example shows how to get lowest and highest values stored in TreeSet using first and last methods respectively.

import java.util.TreeSet;
 
public class GetLowestHighestValueTreeSetExample {
 
  public static void main(String[] args) {
 
    //create TreeSet object
    TreeSet tSet = new TreeSet();
   
    //add elements to TreeSet
    tSet.add("1");
    tSet.add("3");
    tSet.add("2");
    tSet.add("5");
    tSet.add("4");
   
    /**
      To get the lowest value currently stored in Java TreeSet use,
      Object first() method of TreeSet class.
     
      This method returns the first or lowest value currently stored in the
      TreeSet object.    
    **/
   
    System.out.println("Lowest value Stored in Java TreeSet is : " + tSet.first());
   
    /**
      To get the highest value currently stored in Java TreeSet use,
      Object last() method of TreeSet class.
     
      This method returns the last or highest value currently stored in the
      TreeSet object.
    **/
   
    System.out.println("Highest value Stored in Java TreeSet is : " + tSet.last());
 
  }
}

The output is:



Lowest value Stored in Java TreeSet is : 1
Highest value Stored in Java TreeSet is : 5