Create in main() method an ExecutorService instance with a fixed-sized thread pool for 5 threads.
Then add 20 threads of type MyThread to your ExecutorService.
Let's add Future objects that we receive to the futures list.
Your threads should return a String in the following format:
Task duration was 200 ms, execution finished at 11:27:47.243785
Task duration means that your thread should actually be suspended for this period.
You can randomly generate task duration for each thread and use LocalTime.now()
to get the time when this thread finishes execution.
After all your tasks are executed, in main() method log the result string from each Future in futures list.
Note that you should push the file with logs to your PR, so please, do not add it to .gitignore.
You may probably need to use the absolute path to the log file in log4j2.xml.
Logs example:
INFO core.basesyntax.Main:24 Task duration was 200 ms, execution finished at 11:27:47.243785
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:47.358773
INFO core.basesyntax.Main:24 Task duration was 200 ms, execution finished at 11:27:47.562603
INFO core.basesyntax.Main:24 Task duration was 300 ms, execution finished at 11:27:47.865479
INFO core.basesyntax.Main:24 Task duration was 500 ms, execution finished at 11:27:48.367833
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:48.470337
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:48.574946
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:48.677488
INFO core.basesyntax.Main:24 Task duration was 500 ms, execution finished at 11:27:49.181528
INFO core.basesyntax.Main:24 Task duration was 200 ms, execution finished at 11:27:49.391357
INFO core.basesyntax.Main:24 Task duration was 400 ms, execution finished at 11:27:49.796201
INFO core.basesyntax.Main:24 Task duration was 400 ms, execution finished at 11:27:50.197847
INFO core.basesyntax.Main:24 Task duration was 300 ms, execution finished at 11:27:50.500033
INFO core.basesyntax.Main:24 Task duration was 400 ms, execution finished at 11:27:50.901827
INFO core.basesyntax.Main:24 Task duration was 400 ms, execution finished at 11:27:51.303852
INFO core.basesyntax.Main:24 Task duration was 500 ms, execution finished at 11:27:51.807451
INFO core.basesyntax.Main:24 Task duration was 500 ms, execution finished at 11:27:52.310309
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:52.412642
INFO core.basesyntax.Main:24 Task duration was 100 ms, execution finished at 11:27:52.519061
INFO core.basesyntax.Main:24 Task duration was 200 ms, execution finished at 11:27:52.722007