El método size() de ConcurrentLinkedQueue se utiliza para devolver el número de elementos que contiene este ConcurrentLinkedQueue.
Sintaxis:
public int size()
Devoluciones: este método número de elementos en este ConcurrentLinkedQueue.
Los siguientes programas ilustran el método size() de ConcurrentLinkedQueue:
Ejemplo 1:
// Java Program Demonstrate size()
// method of ConcurrentLinkedQueue
import java.util.concurrent.*;
public class GFG {
public static void main(String[] args)
{
// create an ConcurrentLinkedQueue
ConcurrentLinkedQueue<Integer>
queue = new ConcurrentLinkedQueue<Integer>();
// Add Numbers to queue
queue.add(4353);
queue.add(7824);
queue.add(78249);
queue.add(8724);
// Displaying the existing ConcurrentLinkedQueue
System.out.println("ConcurrentLinkedQueue: " + queue);
// apply size()
int size = queue.size();
// print after applying size method
System.out.println("Size of ConcurrentLinkedQueue: " + size);
}
}
Producción:
ConcurrentLinkedQueue: [4353, 7824, 78249, 8724] Size of ConcurrentLinkedQueue: 4
Ejemplo 2:
// Java Program Demonstrate size()
// method of ConcurrentLinkedQueue
import java.util.concurrent.*;
public class GFG {
public static void main(String[] args)
{
// create an ConcurrentLinkedQueue
ConcurrentLinkedQueue<String>
queue = new ConcurrentLinkedQueue<String>();
// Add String to queue
queue.add("Aman");
queue.add("Amar");
queue.add("Sanjeet");
queue.add("Rabi");
// Displaying the existing ConcurrentLinkedQueue
System.out.println("ConcurrentLinkedQueue: " + queue);
// apply size() on queue
int size = queue.size();
// print after applying size method
System.out.println("Size of ConcurrentLinkedQueue: "
+ size);
// removal of some elements
queue.poll();
queue.poll();
// get size of ConcurrentLinkedQueue again
size = queue.size();
// Displaying the existing ConcurrentLinkedQueue
System.out.println("After 2 removal of elements\n"
+ "ConcurrentLinkedQueue: " + queue);
// print after applying size method
System.out.println("Size of ConcurrentLinkedQueue: "
+ size);
}
}
Producción:
ConcurrentLinkedQueue: [Aman, Amar, Sanjeet, Rabi] Size of ConcurrentLinkedQueue: 4 After 2 removal of elements ConcurrentLinkedQueue: [Sanjeet, Rabi] Size of ConcurrentLinkedQueue: 2
Referencia: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html#size–
Publicación traducida automáticamente
Artículo escrito por AmanSingh2210 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA