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JavaAdvanced#concurrency
JavaIntermediate#concurrency
What are the different thread pool types provided by Executors?
newFixedThreadPool creates a pool with a fixed number of threads; newCachedThreadPool creates threads as needed and reuses idle ones; newSingleThreadExecutor uses one worker thread; newScheduledThreadPool supports delayed/periodic tasks.
Example
ExecutorService fixed = Executors.newFixedThreadPool(5);
ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
scheduler.scheduleAtFixedRate(() -> System.out.println("tick"), 0, 1, TimeUnit.SECONDS);