Re: exec() and sending to STDIO and reading from STDIO
I have an external program I need to execute which takes an argument.
So I have the code:
String command = "...";
String argument = "...";
process = Runtime.getRuntime().exec(command);
And then for sending arguments:
java.io.OutputStream out = process.getOutputStream();
And the for reading output from the external command:
java.io.InputStream in = encryptProcess.getInputStream();
while ((c = in.read()) != -1)
System.out.print("OUT: " + (char)c);
= = = = = = = = = = = = = = = = = =
But the problem is that the output is not actually read. It's still
being outputted when I close the InputStream (in.close();)
Is there not a way to but execute an external program, send arguments
to it and get it's output?
I have tried to insert the command "echo argument|command" e.g.
"echo test|ls" in the command, but this merely echos out the whole
line ("test|ls") rather than sending the argument "test" to
I think you are doing a mistake here........If i am right you are
supposed to wait for the process to end .
you can try out this sniplet.
/*this means that the program ran successfully.
*now use your buffered stream and read from the
process using the
/*program did not run successfully!
*use your stream and read from the process using the
/*you reach here incase the process did not execute
properly or wrong arguements */
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