Help me ! about Runtime.exec()

Question

[php]
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.File;
     /** * Class for running external executable (extrnal process).*/
public class ExeRunner{     
/* Path to Dlls required by the executable */
String path = "C:\\Program Files\\jdk1.4\\bin";
public void run(String [] args) throws IOException, InterruptedException
final Process p = Runtime.getRuntime().exec(args, new String [] {path});
new Thread()
public void run()
try
BufferedReader in = new BufferedReader (new InputStreamReader (p.getInputStream()));     
String str = null;     
while ((str = in.readLine()) != null )     
System.out.println(str);     
in.close();     
catch (IOException e){      
e.printStackTrace();     
}.start();
new Thread()
public void run()
try     {     
BufferedReader in      = new BufferedReader (new InputStreamReader (p.getErrorStream()));     
String str = null;     
while ( (str = in.readLine()) != null )
System.err.println(str);
in.close();     
catch (IOException e)
{       e.printStackTrace();
}.start();
int exitCode = p.waitFor();          
if ( exitCode != 0 )
throw new IOException ("Executable "+args[0]+" stopped with error code "+exitCode);
public static void main(String [] a) throws Exception
String args [] = new String[4];
args[0] = "C:\\Program Files\\jdk1.4\\bin\\java.exe";
args[1] = "-classpath";
args[2] ="E:\\Practical";
args[3] ="HelloWorld";
new ExeRunner().run(args);
[php]

Answer 1

I get the above from another forum. the program running well.
however , my problem is that I want to it display another DOS console to print the "Hello World ".
and the DOS console will not closed untill user close it.
/* Path to Dlls required by the executable */
String path = "C:\\Program Files\\jdk1.4\\bin";
final Process p = Runtime.getRuntime().exec(args, new String [] {path});
can you explain what the above line doing. and what is the "path" means?
I also tried to change the codes in main method
String args [] = new String[6];
args[0] ="cmd.exe";
args[1] ="/start";
args[2] = "C:\\Program Files\\jdk1.4\\bin\\java.exe";
args[3] = "-classpath";
args[4] ="E:\\Practical";
args[5] ="HelloWorld";
new ExeRunner().run(args);
But it does not work.
Thanks very much!