Conceptual Java Concurrency Question

Question

If I have a class whose run () method falls asleep for 1000 ms, then type “Thread”. And I start this thread from my main program, and then my main program immediately sleeps for 2000 ms, and then prints the "Main stream".

Is Thread Printing Guaranteed Before the Main Thread?

Answer 1

Nope. Conceptually, it is possible that the system you are working on will be so busy that the new thread does not even get a chance to start something before the main thread has time to sleep and print the "Main Topic". In fact, which is very unlikely, of course, but fundamentally sleep not a coordination primitive.