Working with Queue
Queues collect and returns objects in the order they were added. Queues also have a capacity. Here you create a waiting list Queue (specifically from an ArrayBlockingQueue) and add names to it. You see what happens when trying to add more names than the capacity allows.
Diese Übung ist Teil des Kurses
Data Types and Exceptions in Java
Anleitung zur Übung
- Import
ArrayBlockingQueuefor use in the application. - Construct a new
ArrayBlockingQueueofStrings with a capacity of 3 and set thewaitListvariable to it. - Add a new name,
"Tarah", towaitList. - Remove the first name on the
waitList.
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
// Import ArrayBlockingQueue
____ ____.____.____.____;
public class GetInLine {
public static void main(String[] args) {
// Create an ArrayBlockingQueue of up to 3 names using parameterized constructor
____<____> waitList = new ____<____>(____);
waitList.offer("Sally");
waitList.offer("Benny");
// Add the name "Tarah"
waitList.____(____);
System.out.println(waitList);
waitList.offer("Letty");
System.out.println(waitList);
// Remove the first name
String first = waitList.____();
System.out.println(first);
waitList.offer("Letty");
System.out.println(waitList);
}
}