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execute external program

kanika dua

Joined: Apr 17, 2002
Posts: 5
I am trying to execute an external program-
net2phone(Its a freeware to make PC to Phone calls) from a java program.
public class TestExec {
public static void main(String[] args) throws Exception {
Process p = Runtime.getRuntime().exec(
"\"C:/Program Files/Net2Phone CommCenter/CommCtr.exe\"");
I want to use something similar to sendKeys in VB to send the number to be dialed automatically via the script. Can somebody help me with this or if any other command is available in java to accomplish this-
Dave Vick
Ranch Hand

Joined: May 10, 2001
Posts: 3244
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Steve Deadsea
Ranch Hand

Joined: Dec 03, 2001
Posts: 125
First, you are using exec() incorrectly. It does not parse a command line with spaces and quotes the way you are expecting it to. It thinks all quotes are literals and tokenizes only on spaces. You will want to tell it that your command is pre-parsed by using it like this:

I also don't know of any sendkeys function in Java. See if the program accepts command line arguments, as that would be the standard way of passing data to it. For example, something like:
I agree. Here's the link:
subject: execute external program
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