What is Thread.Join in threading?

There are two versions of Thread.join
1) Thread.join()
2) Thread.join(integer) this returns a bool value.

Example: If we have two threads-> Thread1 & thread2 while executing “Thread1” you call “Thread2.Join()”. So “Thread1” will wait until “Thread2” has completed its execution and again invoke “Thread1”.

Thread.join(integer) ensures that thread does not wait for a long time. once it exceeds the provided specific time, It will start the waiting thread.