process wait or pause feature needed for java code

[jay start]

Here is some code that work without a problem. My issue is, I need to insert some java code to:

1) pause and/or wait for the tftp process to finish, then;
2) execute the downloaded router image.

I can only manage to get the router_image downloaded. I'm stumped on how to carry it farther and do 1 and 2, above.

Any help much appreciated.

   import java.applet.*;
import java.awt.*;
import java.io.*;
public class ROUTERcmd extends Applet {
public void init() {
Process f;
String cmd = "tftp -i 192.168.1.101 GET router_image.exe";
try {
f = Runtime.getRuntime().exec(cmd);
}
catch(IOException e) {
e.printStackTrace();
}
Process s;
}
} 

[Nick Puketza]

Hi Jay,

As for the waiting, I am not sure, but you might check out the Process class description
in the API specification. The waitFor() method looks promising.

http://java.sun.com/javase/6/docs/api/java/lang/Process.html

[Devaka Cooray]

"jay start", please check your private messages regarding an important administrative matter.

[Rob Spoor]

Nick Puketza wrote:Hi Jay,

As for the waiting, I am not sure, but you might check out the Process class description
in the API specification. The waitFor() method looks promising.

http://java.sun.com/javase/6/docs/api/java/lang/Process.html

Which requires one to have read the Javaworld article "When Runtime.exec() won't".

[Campbell Ritchie]

Welcome to the Ranch

I shall move this thread because it is more difficult than we expect for "beginning Java".

[David Newton]

Why not use a Java FTP library and bypass the vagaries of exec()?

[jay start]

Campbell Ritchie wrote:Welcome to the Ranch

I shall move this thread because it is more difficult than we expect for "beginning Java".

Can you tell me to where you moved it so I can go there and follow up? Thank you.

[jay start]

David Newton wrote:Why not use a Java FTP library and bypass the vagaries of exec()?

That looks very promising. Any idea on the general structure of how I could do that with this code? Thank you.

[David Newton]

Just call a non-asynchronous FTP method; when it returns it's done.

[Campbell Ritchie]

jay start wrote: . . . tell me to where you moved it so I can go there and follow up? Thank you.

Here