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The moose likes Threads and Synchronization and the fly likes creating user defined threads Big Moose Saloon
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creating user defined threads

Mohan Mehra
Ranch Hand

Joined: Jul 28, 2011
Posts: 72
I know how to create threads but I need to create threads based on user input, i.e., if you mention 5 then 5 threads have to be generated. each thread has different tasks to do.
Jeff Verdegan
Bartender

Joined: Jan 03, 2004
Posts: 6109
    
    6

Mohan Mehra wrote:I know how to create threads but I need to create threads based on user input, i.e., if you mention 5 then 5 threads have to be generated.


So use a loop.

each thread has different tasks to do.


Then you must have some logic for deciding which task to assign to each thread. Nobody here can tell you how to do that, since it depends on your requirements, which you haven't specified.
Mohan Mehra
Ranch Hand

Joined: Jul 28, 2011
Posts: 72
each thread generated will independently generate a random integer as an upper limit, and then computes and prints the no. of primes less than or equal to that upper limit .

simple program to create thread:
Henry Wong
author
Sheriff

Joined: Sep 28, 2004
Posts: 18842
    
  40


Simply... replace this code ...
Mohan Mehra wrote:


with something that does this...

Mohan Mehra wrote:independently generate a random integer as an upper limit, and then computes and prints the no. of primes less than or equal to that upper limit .


Also, modify this code ...

Mohan Mehra wrote:


to start many threads by adding ...

Jeff Verdegan wrote:
So use a loop.


whose range is controlled or obtained ...

Mohan Mehra wrote:if you mention 5 then 5 threads have to be generated.


from some input source.


Also ... Since most, if not all of this problem is not thread related, it may be best to implement and test the components without threads first. So, do you have code that generates a random number? that gets input from a user? that generate prime numbers?

Henry


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
Rakesh K. Cherukuri
Ranch Hand

Joined: Jun 01, 2010
Posts: 48

@Henry Wong : Nicely put...

@Mohan Mehra : as Henry rightly put, address it step by step basis. Not to be rude but a word of advice: These forums are here to help you understand things and code better. That means a fair amount of home work by original poster is expected. Bottom line - please do not expect people to code it for you.


Warm Regards,
Rakesh
Mohan Mehra
Ranch Hand

Joined: Jul 28, 2011
Posts: 72
done it. here the code

 
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