shutdown and awaitTermination which first call have any difference?

Question

What is the difference between

ExecutorService eService = Executors.newFixedThreadPool(2);
eService.execute(new TestThread6());
eService.execute(new TestThre         


        

Answer 1

the best implementation:

executor.shutdown();
    try {
         if (!executor.awaitTermination(3500, TimeUnit.MILLISECONDS)) {
            executor.shutdownNow();
         }                  
    } catch (InterruptedException e) {              
        executor.shutdownNow();
    }