How are Thread.join() and InterruptedException related?

Question

Java

Tell me, why do you need to put a catch block with InterruptedException to call Thread.join()? I can't get the connection. For example, for the Thread.sleep() method, this is logical - the catch block will indicate actions if the sleep is interrupted. Why Thread.join()?

Answer 1

1. You need to put a catch block because the join() method throws InterruptedException
2. The join method throws an InterruptedException if the thread calling it is interrupted:

Thread.currentThread().interrupt();
t.join(); // will throw InterruptedException