About Question enthuware.ocpjp.v7.2.1441 :

[Sallador]

It seems that the answer "A thread dies when the run( ) method ends." is less accurate that the answer "A thread dies when the start() method ends". It is because of two reasons:

1. Method run() could be executed without starting a new thread, so when it ends the execution the thread keeps the NEW State.

2. Decompiling of the Thread class shows that the start() method wraps around a native private method start0() which calls run() method and set a thread state to TERMINATED inside.

In both cases we can not definitely say whether a thread dies after finishing run() execution or not(in the 1st case the answer is always NO) . However it is always true that every thread is died when it finishes the start() execution .

[admin]

1. start method returns immediately after kicking of the run method. So saying a thread dies after start ends would be incorrect.
2. If you call the run method directly, you are not really creating a thread. There is no thread in that case. So the question whether a thread dies or not does not arise. But the option is specifically talking about a thread and its run method. Also, the option does not talking about "calling" the run method. It is only talking about its execution. A thread is alive only until its run method is executing. It does die as soon as the run method ends.

HTH,
Paul.