Java: use NIO with System.in

Question

Is it possible to use NIO with System.in?

I would like to somehow treat 'stdin' as a selectable channel. Has anyone found a way to do this?

score 2 · Answer 1 · answered Dec 16 '09 at 15:27

2

I don't know about a SelectableChannel, but you can convert an InputStream to a ReadableByteChannel with

using java.nio.channels.Channels;

...

ReadableByteChannel in = Channels.newChannel(System.in);

answered Dec 16 '09 at 15:27

Powerlord

score 0 · Answer 2 · answered Nov 17 '15 at 18:48

0

You could create a Pipe and a custom thread to read from standard input and write to the pipe.

Once you have the Pipe you can then get the input channel.

answered Nov 17 '15 at 18:48

Archie

score -1 · Accepted Answer · edited May 23 '17 at 10:31

-1

duplicate:

hmmm... on second thought, for stdin there may be a solution. I found this reference:

and in particular:

SystemInPipe.java (class which encapsulates stdin as a selectable channel)

edited May 23 '17 at 10:31

Community

answered Dec 16 '09 at 15:17

Jason S

2

I appreciate what that guy is trying to do in SystemInPipe, but its still not much better than spawning a daemon thread to poll it. Problem is you can't interrupt that thread (ever). – Justin Apr 03 '10 at 23:57
4

This is a classic example of why answers that are primarily links are strongly discouraged on StackOverflow. The link to `javafaq.nu` is dead, so the answer is worthless. – Jim Garrison Jul 15 '16 at 17:54

3 Answers3