To remove an element from a Queue, use the remove() method.
First, set a Queue and insert some elements −
Queue<String> q = new LinkedList<String>(); q.offer("abc"); q.offer("def"); q.offer("ghi"); q.offer("jkl"); q.offer("mno"); q.offer("pqr"); q.offer("stu"); q.offer("vwx");
Remove the first element −
System.out.println("Queue head = " + q.element()); System.out.println("Removing element from queue = " + q.remove());
The following is an example −
import java.util.LinkedList; import java.util.Queue; public class Demo { public static void main(String[] args) { Queue<String> q = new LinkedList<String>(); q.offer("abc"); q.offer("def"); q.offer("ghi"); q.offer("jkl"); q.offer("mno"); q.offer("pqr"); q.offer("stu"); q.offer("vwx"); System.out.println("Queue head = " + q.element()); System.out.println("Removing element from queue = " + q.remove()); System.out.println("\nRemaining Queue elements..."); Object ob; while ((ob = q.poll()) != null) { System.out.println(ob); } } }
Queue head = abc Removing element from queue = abc Queue head now = abc Remaining Queue elements... def ghi jkl mno pqr stu vwx