How do I execute Windows commands in Java?

Question

I\'m working on a project, and it will give you a list of Windows commands. When you select one, it will perform that command. However, I don\'t know how to do that. I was g

Answer 1

an example. 1. create cmd 2. write to cmd -> call a command.

try {
    // Execute command
    String command = "cmd /c start cmd.exe";
    Process child = Runtime.getRuntime().exec(command);

    // Get output stream to write from it
    OutputStream out = child.getOutputStream();

    out.write("cd C:/ /r/n".getBytes());
    out.flush();
    out.write("dir /r/n".getBytes());
    out.close();
} catch (IOException e) {
}