Run cmd commands in the background through java

Question

I am creating a GUI in java that requires a set of commands to be run through the command line one after the other in the background after the user selects a file and clicks a button in the GUI. The commands to be executed will include the path of the file. How can I get the command line to run in the background with a set of commands after the user selects a button?

The GUI as of now only includes the file chooser.

import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.filechooser.FileSystemView;

public class GUIProject {

    public static void main(String[] args) {
        JFileChooser jfc = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory());
        int returnValue = jfc.showOpenDialog(null);
        // int returnValue = jfc.showSaveDialog(null);
        if (returnValue == JFileChooser.APPROVE_OPTION) {
            File selectedFile = jfc.getSelectedFile();
            System.out.println(selectedFile.getAbsolutePath()); //Instead of printing send it to cmd and perform more commands 
        }
    }
}

what is the use of building a gui if you are going to work through a terminal? — Stultuske, Jun 28 '22 at 09:32
[Run cmd commands through Java](https://stackoverflow.com/questions/15464111/run-cmd-commands-through-java) — Gilbert Le Blanc, Jun 28 '22 at 09:33
Have a look at SwingWorker to integrate background tasks with a swing GUI. — Just another Java programmer, Jun 28 '22 at 09:35
@Stultuske Perhaps an application to "hide" the terminal behind a presumably more user-friendly GUI? — Slaw, Jun 28 '22 at 09:42
@Slaw yes, but then the terminal usage wouldn't be there anymore — Stultuske, Jun 28 '22 at 09:52
@Stultuske But I believe that's the point. To let the user choose a file via a GUI and then fork a CMD process to execute the needed series of actions. — Slaw, Jun 28 '22 at 09:54
I would advice to use [**`ProcessBuilder`**](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/ProcessBuilder.html) — Joop Eggen, Jun 28 '22 at 10:33
[Concurrency in Swing](https://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html) — Abra, Jun 28 '22 at 11:27

itapi · Answer 1 · 2022-06-28T10:27:33.420

0

You can try this:

String command = "cd C:\users";
Process p = Runtime.getRuntime().exec(command);

And for multiple commands you can use the && operator

Runtime.getRuntime().exec("cmd /c \"start somefile.bat && start other.bat && cd C:\\test && test.exe\"");

edited Jun 28 '22 at 10:27

answered Jun 28 '22 at 09:58

itapi

19
3

(command) is where I add my command? – abc Jun 28 '22 at 10:13
What about multiple commands? – abc Jun 28 '22 at 10:14
@abc see the edited answer – itapi Jun 28 '22 at 10:28
hey, I seem to get this error - The system cannot find the file specified – abc Jul 08 '22 at 11:54

Run cmd commands in the background through java

1 Answers1