found it:

import java.io.*;

try {
 String line;
 
 OutputStream stdin = null;
 
 Process p = Runtime.getRuntime().exec("ipconfig /all");

   
 BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
 
 while ((line = input.readLine()) != null) {
   println(line);
 }
   input.close();
} catch (Exception err) {
 err.printStackTrace();
}

exit();