Invoking a command in Run Window

Question

Opening the Run window (Windows + r) and running a command -> I want to trigger this same command using Java. I tried this using :

Runtime.getRuntime().exec(command);

But this did not worked. Please let me know how to achieve this.

• Ankur Singhal: does this and this help you
• user182944: I checked that link earlier but no, it did not helped me as such. The problem is: If run the command using the Run window then it works but the same command does not works when tried from a command prompt. Hence the link provided does not helped me much.

Answer 1

Can you try this:

ProcessBuilder pb=new ProcessBuilder("explorer");
 pb.redirectErrorStream(true);
 Process process=pb.start();
 BufferedReader inStreamReader = new BufferedReader(
 new InputStreamReader(process.getInputStream())); 
 while(inStreamReader.readLine() != null){
 //do something with commandline output.
 }

Answer 2

Use this command:

Runtime.getRuntime().exec(new String[] {"cmd.exe", "/c", "start", "winword"});

This successfully runs Microsoft word (winword), which is not runnable directly through cmd. The start command behaves the same as run does.

Add parameters afterwards like this:

Runtime.getRuntime().exec(new String[] {"cmd.exe", "/c", "start", "winword", "C:\\Example.docx"});

• user182944: How to invoke this command: start demo:" -ping -ip 172.18.102.65" using the Runtime exec method? I tried this: Runtime.getRuntime().exec(new String[] {"cmd.exe", "/c", "start", "demo:\" -ping -ip 172.18.102.65\""}); but it did not work. I am getting an error message: `Windows Cannot find -ping' Can you please guide me on this?
• Pokechu22: @user182944 I have no idea what that command is supposed to do and it doesn't work in run on my computer. Is there a program on your computer named start demo that you are trying to run?
• user182944: In the above command, demo: is a custom uri which I created and I am passing the parameters to that custom uri which are -ping, -ip and <an_ip_address> to make this custom uri work. Can you please guide?
• Pokechu22: @user182944 I'm not too experienced with custom uris. It would probably be best to ask a new question and link back to this question for reference.