How to execute commands from Java

Question

hi,
i m trying to execute a CVS command from a java environment. i m writing this code to create a user. for this i m executing this cvs command "cmd /c cvs passwd -r <username> -a <new-username>"
after executing this cmd the command prompt will prompt for a pasword and then after entring the password i have to retype the password for confirmation. the existing code execcutes the command but i don t know how to read the prompt for password.
<code>
import java.io.*;
import java.lang.*;
public class first {
public static void main(String[] args) {
try {
Process p = Runtime.getRuntime().exec("cmd /c cvs passwd -r gopalakrishnan_k -a ram");
InputStreamReader reader=new InputStreamReader(System.in);
BufferedReader OptFromCmd = new BufferedReader(new InputStreamReader(
p.getInputStream()));
BufferedReader fromKeyboard = new BufferedReader(reader);
BufferedReader stdError = new BufferedReader(new InputStreamReader(
p.getErrorStream()));
OutputStream stdOut = p.getOutputStream();
String s;
String pswd = "mahesh";
System.out.println("Success");
int i = 0;
while ((s = OptFromCmd.readLine()) != null) {
//s = OptFromCmd.readLine();
i++;
System.out.println(s);
System.out.println(i);
if (i > 1) {
stdOut.write(pswd.getBytes());
stdOut.flush();
System.out.println(
"Here is the standard error of the command (if any):\n");
while ((s = stdError.readLine()) != null) {
System.out.println(s);
     /* Your Password Here */
     String password="Password Please";
     stdOut.write(password.getBytes());
stdOut.flush();
     stdOut.write(password.getBytes());
stdOut.flush();
     /* Your Password here */
OptFromCmd.close();
stdError.close();
stdOut.close();
} catch (Exception e) {
e.printStackTrace();
</code>
[o/p]
this program gives the output as
adding the user <username>
password:
now i need to enter the password from java envronment and provide it in the command prompt .
then it prompts for the password again for confirmation so i have to retype the password again
how to acheive this.

Answer 1

String abc[]={"sh","-c","/dir1/dir2/dir3/scanVirus/uvscan --clean -- delete --exit-on-error ../*.*>abcde.txt"};
Runtime runtime = Runtime.getRuntime();
Process p = runtime.exec(abc);
when it founds any infected file the process is not terminated correctly and it gives the following error :
"java.lang.Exception: Process failed to terminate correctly"
but it deletes the infected file.
and running the program second time (after deletion of infected file), it executed fine.
Wating for help.
Regards,
Sundeep.