I am trying to create a method that prints out a single line at a time, with two minutes delay between. How do I do that?.
This part of the code reads a text file (questionsFile) and creates an ArrayList:
public Broadcaster(Socket connection) throws IOException {
read = new BufferedReader(new InputStreamReader(connection.getInputStream()));
write = new PrintStream(connection.getOutputStream());
List<String> questionsList = new ArrayList<>();
try (Stream<String> questionsStream = Files.lines(Paths.get(questionsFile))) {
questionsList = questionsStream
.parallel()
.collect(Collectors.toList());
} catch (IOException w) {
w.printStackTrace();
}
Here bellow there is a timer but for some reason, I can't make it work. The whole ArrayList is printed out with no delay what so ever. My intention is to use a printStream but for testing purposes, the text is currently printed out to the console. How can the code be rewritten so it prints out a single line at a time?
List<String> finalQuestionsList = questionsList;
timer.schedule(task(() -> finalQuestionsList.forEach(System.out::println))
, 120, TimeUnit.SECONDS.toMillis(1));
}
private TimerTask task(Runnable task) {
return new TimerTask() {
@Override
public void run() {
task.run();
The trivial solution would be:
for (String question : questionsList) {
timer.schedule(task(() -> System.out.println(question)), 0);
try {
sleep(2000);
} catch (Exception ignored) {}
}