Automate command promt input

[bobrivers2003]

Hi,

I have created a class that executes an ant script. If the ant does not require an input it works fine. However, sometimes the script will ask a qustion from which the user must type either y or n followed by return.

When my class runs this file it hangs when it gets to this bit.

I understand that I may have to use something along the line of bufferedReader. My question:

If I use
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

and

br.readLine();

it requires the user to enter something in. I want java to automatically type y or n followed by return. Does any body know the area that I need to be looking in to solve this issue?

Any help would be greatly appreciated.

Many Thanks

 

[sedj]

Not sure if you can simulate someone pressing a key.

Obvious answer is you have coded in the readLine() - then don't.

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[stefanwagner]

Redefine System.in in (java.lang.)System:
public static void setIn (InputStream in)

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[timw]

The java.awt.Robot class is designed to automate keyboard and mouse input. I've never used it, though. It may need to be used on a separate thread to the Event Dispatch thread of the gui system.

Have a look. If you do try it and get it working, post you experience back here. I for one would be interested to know if Robot works as advertised. I've recommended its use a couple of times before, but have never had chance to try it for myself.

Tim

 

[new2this2002]

http://www.developer.com/java/other/article.php/10936_2212401_4

... simple examples of using the robot to control mouse/keyboard input .. the keyboard example on that page should hopefully give you what you need

 

[duddev]

I don't think the java.awt.Robot class is terribly hard to work with actually, used it some for a project a while back. Wasn't too hard...

 

[timw]

I don't think the java.awt.Robot class is terribly hard to work with actually

Excellent. Then maybe bobrivers2003 could make productive use of it. Maybe he'll even respond at some point to the thread he's started.

Tim