El método takeLast() de BlockingDeque devuelve y elimina la cola del contenedor Deque. El método lanza una InterruptedException si se interrumpe mientras espera.
Sintaxis:
public E takeLast()
Devoluciones: este método devuelve la cola (último elemento) del contenedor Deque.
Excepción : la función lanza una InterruptedException si se interrumpe mientras espera.
Nota : El método takeLast() de BlockingDeque se ha heredado de la clase LinkedBlockingDeque en Java.
Los siguientes programas ilustran el método takeLast() de BlockingDeque:
Programa 1:
Java
// Java Program to demonstrate takeLast() // method of BlockingDeque import java.util.concurrent.LinkedBlockingDeque; import java.util.concurrent.BlockingDeque; import java.util.*; public class GFG { public static void main(String[] args) throws InterruptedException { // create object of BlockingDeque BlockingDeque<Integer> BD = new LinkedBlockingDeque<Integer>(); // Add numbers to end of BlockingDeque BD.add(7855642); BD.add(35658786); BD.add(5278367); BD.add(74381793); // print Deque System.out.println("Blocking Deque: " + BD); // removes the last element and prints it System.out.println("Head of Blocking Deque: " + BD.takeLast()); // prints the Deque System.out.println("Blocking Deque: " + BD); } }
Producción:
Blocking Deque: [7855642, 35658786, 5278367, 74381793] Head of Blocking Deque: 74381793 Blocking Deque: [7855642, 35658786, 5278367]
Programa 2:
Java
// Java Program to demonstrate takeLast() // method of BlockingDeque import java.util.concurrent.LinkedBlockingDeque; import java.util.concurrent.BlockingDeque; import java.util.*; public class GFG { public static void main(String[] args) throws InterruptedException { // create object of BlockingDeque BlockingDeque<Integer> BD = new LinkedBlockingDeque<Integer>(); // Add numbers to end of BlockingDeque BD.add(7855642); BD.add(35658786); BD.add(5278367); BD.add(74381793); // print Deque System.out.println("Blocking Deque: " + BD); BD.clear(); // throws error as the list is empty and it // is interrupted while waiting System.out.println("Head of Blocking Deque: " + BD.takeLast()); } }
Errores de tiempo de ejecución:
Max real time limit exceeded due to either by heavy load on server or by using sleep function
Referencia: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/BlockingDeque.html#takeLast()