Set<Task> naturallyOrderedTasks = new TreeSet<Task>(mondayTasks);
naturallyOrderedTasks.addAll(tuesdayTasks);
assert naturallyOrderedTasks.toString().equals (
"[code db, code gui, code logic, phone Mike, phone Paul]");
NavigableSet<PriorityTask> priorityTasks = new TreeSet<PriorityTask>();
priorityTasks.add(new PriorityTask(mikePhone, Priority.MEDIUM));
priorityTasks.add(new PriorityTask(paulPhone, Priority.HIGH));
priorityTasks.add(new PriorityTask(databaseCode, Priority.MEDIUM));
priorityTasks.add(new PriorityTask(interfaceCode, Priority.LOW));
assert(priorityTasks.toString()).equals(
"[phone Paul: HIGH, code db: MEDIUM, phone Mike: MEDIUM, code gui: LOW]");
PriorityTask firstLowPriorityTask =
new PriorityTask(new EmptyTask(), Priority.LOW);
SortedSet<PriorityTask> highAndMediumPriorityTasks =
priorityTasks.headSet(firstLowPriorityTask);
assert highAndMediumPriorityTasks.toString().equals(
"[phone Paul: HIGH, code db: MEDIUM, phone Mike: MEDIUM]");
PriorityTask firstMediumPriorityTask =
new PriorityTask(new EmptyTask(), Priority.MEDIUM);
SortedSet<PriorityTask> mediumPriorityTasks =
priorityTasks.subSet(
firstMediumPriorityTask, firstLowPriorityTask);
assert mediumPriorityTasks.toString().equals(
"[code db: MEDIUM, phone Mike: MEDIUM]");
PriorityTask logicCodeMedium =
new PriorityTask(logicCode, Priority.MEDIUM);
priorityTasks.add(logicCodeMedium);
assert mediumPriorityTasks.toString().equals(
"[code db: MEDIUM, code logic: MEDIUM, phone Mike: MEDIUM]");
mediumPriorityTasks.remove(logicCodeMedium);
assert priorityTasks.toString().equals(
"[phone Paul: HIGH, code db: MEDIUM, phone Mike: MEDIUM, code gui: LOW]");
PriorityTask nextTask = priorityTasks.pollFirst();
assert nextTask.toString().equals("phone Paul: HIGH");
PriorityTask mikePhoneMedium = new PriorityTask(mikePhone, Priority.MEDIUM);
NavigableSet closedInterval = priorityTasks.subSet(
firstMediumPriorityTask, true, mikePhoneMedium, true);
assert(closedInterval.toString()).equals(
"[code db: MEDIUM, phone Mike: MEDIUM]");
