The Java.util.ConcurrentLinkedDeque.pop() method in Java is used to pop an element from the ConcurrentLinkedDeque. The element is popped from the top of the ConcurrentLinkedDeque and is removed from the same.
Syntax:
ConcurrentLinkedDeque.pop()
Parameters: The method does not take any parameters.
Return Value: This method returns the element present at the top of the ConcurrentLinkedDeque and then removes it.
Exceptions: The method throws EmptyConcurrentLinkedDequeException is thrown if the ConcurrentLinkedDeque is empty.
Below programs illustrate the Java.util.ConcurrentLinkedDeque.pop() method:
Program 1:
Java
// Java code to illustrate pop()import java.util.*;import java.util.concurrent.*;public class ConcurrentLinkedDequeDemo { public static void main(String args[]) { // Creating an empty ConcurrentLinkedDeque ConcurrentLinkedDeque<String> CLD = new ConcurrentLinkedDeque<String>(); // Use add() method to add elements CLD.push("Welcome"); CLD.push("To"); CLD.push("Geeks"); CLD.push("For"); CLD.push("Geeks"); // Displaying the ConcurrentLinkedDeque System.out.println("Initial ConcurrentLinkedDeque: " + CLD); // Removing elements using pop() method System.out.println("Popped element: " + CLD.pop()); System.out.println("Popped element: " + CLD.pop()); // Displaying the ConcurrentLinkedDeque after pop operation System.out.println("ConcurrentLinkedDeque after pop operation " + CLD); }} |
Output:
Initial ConcurrentLinkedDeque: [Geeks, For, Geeks, To, Welcome] Popped element: Geeks Popped element: For ConcurrentLinkedDeque after pop operation [Geeks, To, Welcome]
Program 2:
Java
// Java code to illustrate pop()import java.util.*;import java.util.concurrent.*;public class ConcurrentLinkedDequeDemo { public static void main(String args[]) { // Creating an empty ConcurrentLinkedDeque ConcurrentLinkedDeque<Integer> CLD = new ConcurrentLinkedDeque<Integer>(); // Use add() method to add elements CLD.push(10); CLD.push(15); CLD.push(30); CLD.push(20); CLD.push(5); // Displaying the ConcurrentLinkedDeque System.out.println("Initial ConcurrentLinkedDeque: " + CLD); // Removing elements using pop() method System.out.println("Popped element: " + CLD.pop()); System.out.println("Popped element: " + CLD.pop()); // Displaying the ConcurrentLinkedDeque after pop operation System.out.println("ConcurrentLinkedDeque after pop operation " + CLD); }} |
Output:
Initial ConcurrentLinkedDeque: [5, 20, 30, 15, 10] Popped element: 5 Popped element: 20 ConcurrentLinkedDeque after pop operation [30, 15, 10]
