Running 2 separate programs at once w/ interprocess communication

Question

Hello Java forum. I am coding a stock market simulator with Java. I need the stock prices to be CONSTANTLY dynamic and therefor running in a separate JVM (java virtual machine/ runtime environment). So what I have is a driverClass that is the front for the market sim. It displays the stock prices and such, and therefor must grab variables from the engineClass which is constantly looping to randomly increase or decrease the stock values of 50 different stocks. Here is a VERY watered down version of these 2 classes:
driverClass (the front of the program)
public class driverClass
     public static void main (String[]args)
     int stockPrice = 0, numShares = 0, totalPrice = 0;
     /*Some way to take values from the constantly running engineClass
     stockPrice = code to get value from the Dell method in the engineClass
     numShares = Keyboard.readInt();
     totalPrice = numShares * stockPrice
     System.out.print ("The stock's price is " + stockPrice);
     System.out.print (". You have " + numShares + " shares of Dell stock.");
     System.out.println (" Your net worth is " + totalPrice + ".");
}The engineClass (constantly changes all of the stock prices)
{codepublic class engineClass
     public static void main (String[]args)
          //Does this have to be a main method (like a driver) or can it/does it have to be in the form of an object class?
          int repeat = 100, stockValue = 20;
          while(repeat > 0)
               Dell(stockValue);
               repeat--;
     public static int Dell (int stockPrice)
          return stockPrice;
     //does basically this for the other 49 stocks
}}So what I need is to be able to call on a method in the engineClass FROM the driverClass while the engine is constantly changing all of the stock prices. I have heard of using COBRA, RMI, sockets and multithreading to achieve this. I want the most BASIC and EASY way to do this. Thank you very much for any help at all. I know it is rude to ask, but I am in a hurry to finish this code and it would be great if someone could give me help here ASAP. Thanks!                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

Answer 1

jschell wrote:
Brynjar wrote:
I've found that Spring simplifies using RMI a lot. Here's an example that looks decent (haven't looked very closely at it):
[http://www.roseindia.net/spring/springpart4.shtml|http://www.roseindia.net/spring/springpart4.shtml]
I could be mistaken but I believe that is the site that multiple posters have denigrated as being idiotic.
And others have also been banned from this site for posting it (presumably because the posts there are so poor.)Hmm, though I said I didn't look very closely I probably should have - you're right, many things there don't look too good. Here's a much better example:
[http://static.springframework.org/spring/docs/2.0.x/reference/remoting.html|http://static.springframework.org/spring/docs/2.0.x/reference/remoting.html]
And I seriously doubt that using spring with RMI is going to help the OP.At least speaking from my own experience, I found using Spring for this to be much easier than doing the stub/proxy/registry yada yada. But maybe the learning curve was just easier at that point, having then already used Spring for lots of other things - YMMV.