Represents an external process. Enables writing to, reading from, destroying, and waiting for the external process, as well as querying its exit value. Use Java.Lang.ProcessBuilder to create processes.

The child process writes its output to two streams, out and err. These streams should be read by the parent process using Process.InputStream and Process.ErrorStream respectively. If these streams are not read, the target process may block while it awaits buffer space. It isn't sufficient to read the streams in sequence; to avoid blocking each of the two streams must have its own reader thread. If you are not interested in differentiating the out and err streams, use ProcessBuilder.RedirectErrorStream(bool) to merge the two streams. This simplifies your reading code and makes it easier to avoid blocking the target process.

Running processes hold resources. When a process is no longer used, the process should be closed by calling Process.Destroy. This will kill the process and release the resources that it holds.

For example, to run /system/bin/ping to ping android.com:

Process process = new ProcessBuilder()
       .command("/system/bin/ping", "android.com")
       .redirectErrorStream(true)
       .start();
   try {
     InputStream in = process.getInputStream();
     OutputStream out = process.getOutputStream();

     readStream(in);

    finally {
     process.destroy();
   }
 }

[Android Documentation]