ConcurrentSkipListSet last() method in Java
The last() method of java.util.concurrent.ConcurrentSkipListSet is an in-built function in Java which returns the last (highest) element currently in this set.
Syntax:
public E last()
Return Value: The function returns returns the last (highest) element currently in this set.
Exception: The function throws the NoSuchElementException if this set is empty.
Below programs illustrate the ConcurrentSkipListSet.last() method:
Program 1:
// 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()); }} |
Output:
The highest element of the set: 78
Program 2: Program to show NoSuchElementException in 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>(); 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); } }} |
Output:
Exception: java.util.NoSuchElementException
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#last–
