Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Collections;
- import java.util.Comparator;
- import java.util.List;
- import java.util.Scanner;
- import java.util.stream.Collectors;
- //rasporeduvac na zadaci
- /**
- * I Partial exam 2016
- */
- public class TaskSchedulerTest {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- int n = scanner.nextInt();
- Task[] timeTasks = new Task[n];
- for (int i = 0; i < n; ++i) {
- int x = scanner.nextInt();
- timeTasks[i] = new TimedTask(x);
- }
- n = scanner.nextInt();
- Task[] priorityTasks = new Task[n];
- for (int i = 0; i < n; ++i) {
- int x = scanner.nextInt();
- priorityTasks[i] = new PriorityTask(x);
- }
- Arrays.stream(priorityTasks).forEach(System.out::println);
- TaskRunner<Task> runner = new TaskRunner<>();
- System.out.println("=== Ordered tasks ===");
- System.out.println("Timed tasks");
- runner.run(Schedulers.getOrdered(), timeTasks);
- System.out.println("Priority tasks");
- runner.run(Schedulers.getOrdered(), priorityTasks);
- int filter = scanner.nextInt();
- System.out.printf("=== Filtered time tasks with order less then %d ===\n", filter);
- runner.run(Schedulers.getFiltered(filter), timeTasks);
- System.out.printf("=== Filtered priority tasks with order less then %d ===\n", filter);
- runner.run(Schedulers.getFiltered(filter), priorityTasks);
- scanner.close();
- }
- }
- class TaskRunner <T> {
- public void run(TaskScheduler<T> scheduler, T[] tasks) {
- List<T> order = scheduler.schedule(tasks);
- order.forEach(System.out::println);
- }
- }
- interface TaskScheduler<T>
- {
- public List<T> schedule(T[] c);
- }
- interface Task {
- //dopolnete ovde
- public int getOrder();
- }
- class PriorityTask implements Task {
- private final int priority;
- public PriorityTask(int priority) {
- this.priority = priority;
- }
- @Override
- public String toString() {
- return String.format("PT -> %d", getOrder());
- }
- @Override
- public int getOrder() {
- // TODO Auto-generated method stub
- return priority;
- }
- }
- class TimedTask implements Task {
- private final int time;
- public TimedTask(int time) {
- this.time = time;
- }
- @Override
- public String toString() {
- return String.format("TT -> %d", getOrder());
- }
- @Override
- public int getOrder() {
- return time;
- }
- }
- class Schedulers {
- public static <T> TaskScheduler<T> getOrdered() {
- // vashiot kod ovde (annonimous class)
- return new TaskScheduler<T>() {
- @Override
- public List<T> schedule(T[] c) {
- // TODO Auto-generated method stub
- List<T> list = new ArrayList<T>();
- for(T t: c)
- {
- list.add(t);
- }
- Collections.sort(list,new Comparator<T>() {
- @Override
- public int compare(T o1, T o2) {
- // TODO Auto-generated method stub
- Task a = (Task)o1;
- Task b = (Task)o2;
- return Integer.compare(a.getOrder(), b.getOrder());
- }
- });
- return list;
- }
- };
- }
- public static <T> TaskScheduler<T> getFiltered(int order) {
- TaskScheduler<T> ts = tasks -> {
- List<T> list = new ArrayList<>();
- for(T t : tasks)
- {
- list.add(t);
- }
- return list.stream()
- .map(t -> (Task) t)
- .filter(t -> Integer.compare(t.getOrder(), order)<0)
- .map(t -> (T)t)
- .collect(Collectors.toList());
- };
- return ts;
- // vashiot kod ovde (lambda expression)
- }
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement