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Message:

Standard Input / Output and Error of the 'executed' program

Posted by Salil V Gangal on July 08, 2001 at 12:13 PM

Friends,

On Windows platform I'm wondering about what happens to the Standard Input / Output and Error of a program that I'm executing from within my Java program by using the Runtime ?

Say there is some code such as ===>

public static void runAnExeFile ( String exeFileName )
{
    Process p = null;
    int status;
    try {
        Runtime r = Runtime.getRuntime();
        p = r.exec(exeFileName);
    }
    catch (IOException e) {
        System.err.println("Caught IOException: " + e.getMessage());
    }

    try {
        status = p.waitFor();
    }
    catch (InterruptedException e) {
        status = -1;
    }
    if ( status == -1 )  {
        System.err.println("Process is interrupted.  Exiting ...");
        System.exit(1);
    }
}

So the question is what happens to the standard Input / Output and Error of the 'exeFileName' which is getting executed by the statements hilited in the above code ?

Regards,
Salil V Gangal

• Uses it parent process for standard IO thru 3 streams Kishori Sharan July 08, 2001 at 12:56 PM (0)