Java Wait for Enter press (do not execute multiple keypresses)

Question

I have a procedural Java Program that has multiple segments that I would like to execute manually (using "Press Enter to Proceed").

Right now I've been trying with System.in.read() or Scanner but if I would make multiple enter presses, it automatically executes the next segment.

how might I regulate this behavior?

possible duplicate:http://stackoverflow.com/questions/18281543/java-using-scanner-enter-key-pressed?rq=1 — thetraveller, Jan 23 '17 at 14:43
Can you empty the input buffer after each segment has completed? I've not tried it, but does something like [pseudo code] System.in.read([byte array of in.available() length]); to "flush" everything. — Steve Smith, Jan 23 '17 at 14:47

score 0 · Answer 1 · answered Jan 23 '17 at 14:51

0

I would suggest using BufferedReader instead of System.in.read() . It has a built-in flush mechanism too.

answered Jan 23 '17 at 14:51

Rajarshi basu

score 0 · Answer 2 · edited Jan 23 '17 at 16:45

0

You have to remove everything from the InputStream before you wait for the next enter.

System.in.available() returns the number of bytes currently in the stream.

System.in.read(new byte[System.in.available()]);

This clears the Stream, so now the user has to enter something again.

Note: System.in.skip() doesn't work for some reason.

edited Jan 23 '17 at 16:45

Jacques Gaudin

answered Jan 23 '17 at 16:06

Poohl

2 Answers2