<div>
use some form of synchronization <br />
either synchronized keyword <br />
for example <br />
Class x{<br />
File f = new File(...);<br />
....<br />
}<br />
synchronized(f){<br />
&nbsp;// read , write .. do stuff - single user, single thread<br />
}<br />
<br />
or use java.util.concurrent &nbsp;(for example single Semaphore)<br />
<br />

</div>


use some form of synchronization
either synchronized keyword
for example
Class x{
File f = new File(...);
....
}
synchronized(f){
 // read , write .. do stuff - single user, single thread
}

or use java.util.concurrent  (for example single Semaphore)



<div>
<div class="content wysiwyg-content">
I have to generate a file x through a method.Based on the data input to the method the files contents will vary.How will i do this if there are 100 users all using the system at the same time - in such a scenario when user a is viewing the file the file will be modified by user b which is not desirable.Pl. advise.
</div>
</div>


I have to generate a file x through a method.Based on the data input to the method the files contents will vary.How will i do this if there are 100 users all using the system at the same time - in such a scenario when user a is viewing the file the file will be modified by user b which is not desirable.Pl. advise.

file writing to disc in a multiuser enviornment.

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Java

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