java - What happens when a File is not created for a file input stream? -

-

what happens when file not created file input stream? happens if want retrieve file hasn't been created yet? equal null?

you ioexception. best bet test file.exists() first. since possible file deleted between time call file.exists() , time start reading it, have handle exceptional case anyway.


Comments

Post a Comment

Popular posts from this blog

Unable to remove the www from url on https using .htaccess -

-
i want remove www site url. ie. https://www.domainname.com.au https://domainname.com.au . i have tried various .htacces code nothing work me. here present code remove www http not work https. rewriteengine on rewritebase / rewritecond %{http_host} ^www\.(.*)$ [nc] rewriterule ^/(.*)$ http://%1/$1 [r=301,l] rewritecond %{https} off rewriterule ^(.*)$ https://domainname.com.au/$1 [r=301,l] rewriterule ^code-of-conducts/(.*)/$ code-of-conducts.php?type=$1 rewriterule ^parents/post-a-job/(.*)/edit/$ parents/post-a-job.php?action=edit&id=$1 rewriterule ^parents/post-a-job/(.*)/$ parents/post-a-job.php?job_type=$1 rewriterule ^parents/open-jobs/(.*)/delete/$ parents/open-jobs.php?action=delete&id=$1 rewriterule ^parent-profile/(.*)/$ parent-profile.php?id=$1 rewriterule ^parents/job-details/(.*)$ parents/job-details.php?applied_id=$1 rewriterule ^sitterprofile/(.*)/$ sitterprofile.php?id=$1 rewriterule ^sitter/job-board/state/(.*)/page/(.*)/$ sitter/job-board.ph...
Read more