multithread java

multithread

ExecutorService executor = Executors.newFixedThreadPool(5);
List<Future<String>> list = new ArrayList<>();
for(int i=0; i< 100; i++){
  Future<String> future = executor.submit(() -> "222");
  list.add(future);
}
for(Future<String> fut : list){
  try {
    System.out.println(new Date()+ "::"+fut.get());
  } catch (InterruptedException | ExecutionException e) {
    e.printStackTrace();
  }
}
executor.shutdown();