public E last()

// Java program to demonstrate last()
// method of ConcurrentSkipListSet
  
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetLastExample1 {
    public static void main(String[] args)
    {
  
        // Initializing the set
        ConcurrentSkipListSet<Integer>
            set = new ConcurrentSkipListSet<Integer>();
  
        // Adding elements to this set
        set.add(78);
        set.add(64);
        set.add(12);
        set.add(45);
        set.add(8);
  
        // Printing the highest element of the set
        System.out.println("The highest element of the set: "
                           + set.last());
    }
}

The highest element of the set: 78

// Java program to demonstrate last()
// method of ConcurrentSkipListSet
  
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetLastExample1 {
    public static void main(String[] args)
    {
  
        // Initializing the set
        ConcurrentSkipListSet<Integer>
            set = new ConcurrentSkipListSet<Integer>();
        try {
            // Printing the highest element of the set
            System.out.println("The highest element of the set: "
                               + set.last());
        }
        catch (Exception e) {
            System.out.println("Exception: " + e);
        }
    }
}

Exception: java.util.NoSuchElementException