How to use return value from ExecutorService

Question

I am running a for loop under ExecutorService (which sends emails)

If any of the return type is fail , i need to return return resposne as \"Fail\" or else i need to

Answer 1

It seems that you want to wait for the completion of the task that you've submitted (why use an ExecutorService?)

You can do that by submitting a Callable, the submit method will then return a Future. You can then get() to wait for completion and obtain the result.