importjava.util.*;publicclassGFG{publicstaticvoidmain(String args[]){Queue<String> pq =newPriorityQueue<>();pq.add("Geeks");pq.add("For");pq.add("Geeks");System.out.println("Initial Queue "+ pq);pq.remove("Geeks");System.out.println("After Remove "+ pq);System.out.println("Poll ...
// Java Program DemonstratedrainTo(Collection c)// method of BlockingQueue.importjava.util.ArrayList;importjava.util.concurrent.LinkedBlockingQueue;importjava.util.concurrent.BlockingQueue;publicclassGFG{// create a Employee Object with// position and salary as an attributepublicclassEmployee{publicString ...
示例1:检查数字队列中是否包含数字n。数字n作为输入传递给LinkedBlockingQueue的contains()。 // Java Program Demonstratecontains(Object o)// method of LinkedBlockingQueueimportjava.util.concurrent.LinkedBlockingQueue;publicclassGFG{publicstaticvoidmain(String[] args){// define capacity of LinkedBlockingQueuei...
E peek() Java Copy返回: 该方法返回队列的头部,当队列为空时返回false。以下程序说明了队列的peek()方法。程序1: 借助于 LinkedList// Java Program Demonstrate peek() // method of Queue import java.util.*; public class GFG { public static void main(String[] args) throws IllegalStateException { ...
// Java Program Demonstrate // drainTo(Collection C) // method of BlockingQueue. import java.util.ArrayList; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.BlockingQueue; public class GFG { public static void main(String[] args) throws InterruptedException { // define...
// Java program to demonstrate // size() method import java.util.concurrent.PriorityBlockingQueue; public class GFG { public static void main(String[] args) { // create object of PriorityBlockingQueue PriorityBlockingQueue<String> pbq = new PriorityBlockingQueue<String>(); // Add element to ...
// Program Demonstrate offer(E e, long timeout, TimeUnit unit)// method of ArrayBlockingQueueimportjava.util.concurrent.ArrayBlockingQueue;importjava.util.concurrent.TimeUnit;publicclassGFG{publicstaticvoidmain(String[]args)throwsInterruptedException{// Define capacity of ArrayBlockingQueueintcapacity=5;...
BlockingQueue poll() method in Java with examples BlockingQueue 接口的 poll(long timeout, TimeUnit unit) 方法通过从队列中删除该元素来返回 BlockingQueue 的头部。可以说,这个方法从这个 LinkedBlockingQueue 的头部获取和移除元素。如果队列为空,则 poll() 方法将等待指定的时间让元素变为可用。
// Java Program Demonstrate // offer(Element e, long timeout, TimeUnit unit) // method of LinkedBlockingQueue. import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.TimeUnit; public class GFG { // Main method public static void main(String[] args) throws ...
importjava.util.concurrent.*; publicclassGFG{ publicstaticvoidmain(String[]args) { // create an ConcurrentLinkedQueue ConcurrentLinkedQueue<Integer> queue=newConcurrentLinkedQueue<Integer>(); // Add Numbers to queue queue.add(4353); queue.add(7824); ...