meaning of only join and wait

[aman bisht]

if we use join and wait without invoking then on any object then what will happen.for example:
let's suppose that this is the run method of any thread:

public void run()throws Exception{
synchronized(this){
join();
wait();
}}

in this code what will join and wait method will do, as they are not used on any object references.

[Maneesh Godbole]

aman bisht wrote:
in this code what will join and wait method will do, as they are not used on any object references.

To start with, the code, as you posted, won't even compile.

[aman bisht]

now I have corrected my code....

[Maneesh Godbole]

aman bisht wrote:now I have corrected my code....

Still won't compile.

[aman bisht]

I have now edited mujhe code....please tell meaning of join() and wait() statements only ...I have my OCJP exam tomorrow so please explain the cocncept of wait and join

[Maneesh Godbole]

wait;  

Did this compile for you?

[aman bisht]

now I have corrected it....

[Henry Wong]

aman bisht wrote:now I have corrected it....

Wow... three iterations of code corrections? Hmmm... I wonder how bad the original code was?!?!?

Henry

[Henry Wong]

aman bisht wrote:
let's suppose that this is the run method of any thread:

public void run()throws Exception{
synchronized(this){
join();
wait();
}}

in this code what will join and wait method will do, as they are not used on any object references.

Hint: Question. When an instance method calls another method like so, what instance it being used to call those methods? The answer to this will help you get to the thread object that is being used.

Unfortunately, for us, we can't give you the answer, because you didn't show us the part of the program that created the threads.

Henry