import java.util.LinkedList; import java.util.Queue; public class Demo { public static void main(String[] args) { Queue<String> q = new LinkedList<String>(); q.add("abc"); q.add("def"); q.add("ghi"); q.add("jkl"); q.add("mno"); q.add("pqr"); q.add("stu"); q.add("vwx"); System.out.println("Queue head = " + q.element()); System.out.println("Removing element from queue = " + q.poll()); System.out.println("Queue head now = " + q.element()); System.out.println("Removing element from queue = " + q.poll()); System.out.println("Queue head now = " + q.element()); System.out.println("\nRemaining Queue elements..."); Object ob; while ((ob = q.poll()) != null) { System.out.println(ob); } } }