inserer mot de passe (ms-dos)

j'ai écrit ce code, pour exécuter des commandes ms-dos avec java, mais le pb est de ne pas etre capable d'inserer le mot de pass

Code:

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package javaapplication17; 
import java.io.BufferedWriter;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
 
public class JavaApplication17 {
    public static void main(String[] args) throws IOException {
 
        try{ 
            String ch ="runas /user:hp \"netstat -b\"";
            System.out.println(ch);
 
            Process p = Runtime.getRuntime().exec(ch);
 
            // read the standard output of the command
            BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
 
            System.out.println("Here is the standard output of the command:\n");
 
            String s;
            String result = "";
            while ((s = stdInput.readLine()) != null) {
                result =result + s + "\n";
            }  
 
            System.out.println(result);
 
            stdInput.close(); 
        }catch(Exception e)  {System.out.println("zzzzz"+e);} 
 
    }
}

resultat:

runas /user:hp "netstat -b"
Here is the standard output of the command:

Entrez le mot de passe de hp :