Solved

Question on executing an external program from Java code....

Posted on 2006-06-13
3
185 Views
Last Modified: 2010-03-31
I want to execute a executable program on Windows which will take arguments and return back some parameters.

I know I need to

Runtime r = Runtime.getRuntime();
Process p = r.exec("myprogram.exe");

Should I parse all three of these?

pErrorStream = p.getErrorStream();  //for errors?
pInputStream = p.getInputStream();  //for input and program output?
pOutputStream = p.getOutputStream();  // for additonal input ?

So just to clarify for me if I want to send arguments send them to inputstream and look there too for the program you are excuting output's too?  Then OutputStream is only used to send additional input right?


thanks
ryno71
0
Comment
Question by:ryno71
  • 2
3 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 40 total points
ID: 16895077
Yes, you need to read the Process' streams on separate threads.

>>Then OutputStream is only used to send additional input right?

Yes
0
 
LVL 30

Assisted Solution

by:Mayank S
Mayank S earned 35 total points
ID: 16895312
>> //for input and program output?

Only for reading the program output.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 16895600
:-)
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

After being asked a question last year, I went into one of my moods where I did some research and code just for the fun and learning of it all.  Subsequently, from this journey, I put together this article on "Range Searching Using Visual Basic.NET …
For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench. Introduction While learning Java can be done with…
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now