Hello,
I'm working my way through the demonstration sketches that come with the library, and I came across a syntax in the draw/object detection loop that I didn't recognize.  My only non-processing programming experience is PHP and max/msp/jitter, so I'm still out of my depth (for now!).

Anyway, thought I would defer to you fine folks for an explanation.

Code:

 Vector tuioCursorList = tuioClient.getTuioCursors();
   for (int i=0;i<tuioCursorList.size();i++) {
      TuioCursor tcur = (TuioCursor)tuioCursorList.elementAt(i);
      Vector pointList = tcur.getPath(); 

     TuioCursor tcur = (TuioCursor)tuioCursorList.elementAt(i); Now, I get that it's calling an attribute/element (not sure correct term) of the TuioCursorList using the i as a key for the array, no worries there (right?).  
My question lies in the brackets around the (TuioCursor) before that statement.  I'm just not sure what that is.  Semantically, I'd hazard a guess that it's identifying that vector as part of the broader TuioCursor object/class/whathaveyou for inheretence purposes....

Anyway, any explanation would be greatly appreciated, likewise a pointer in the direction of some further reading too!  Thanks in advance for the help.

hey I thought Processing didn't do generics, because it supposedly only supports java 1.4 grammar. And yet it does, so now I'm confused. PhiLo? anyone?

eskimo: your example works with processing IDE, even with 1.0.3, but I thought it shouldn't. I even exported it to an applet, and it still works. Yet I see feature requests in the dev bugtracker, where people ask for generics support. So maybe processing has implemented some of the java 1.5 features, or else my Java installation is different (I have several JVMs installed by hand).

Here's another example.
This has generics and works:

Code:

  Vector<Integer> numbers = new Vector();
  numbers.add(1);
  numbers.add(2);
  numbers.add(3);
  for (int i=0;i<numbers.size();i++) {
     Integer num = numbers.elementAt(i);
     print(num);
  }
 

This has no generics and fails:
Code:

  Vector numbers = new Vector();
  numbers.add(1);
  numbers.add(2);
  numbers.add(3);
  for (int i=0;i<numbers.size();i++) {
     Integer num = numbers.elementAt(i);
     print(num);
  }
 

see the weirdness?  

Oh wow.  Okay, that clears up some confusion, and adds more at the same time.  For those lagging a bit behind (like myself), I found this helped on a basic level. http://www.janeg.ca/scjp/oper/cast.html

Alright, so just to make clear, in this case the vector information from one object to another (making explicit).  To just clarify my understanding:

I'm working on another project where I'm storing float point numbers based on a series of jitter calculations in max/msp/jitter, and they're being stored in a text file.
Doing the visualization in processing, I am extracting the full string from the text file, breaking it up by line, then " " deliniation.
Instead of using functions to convert string to float or int, can I instead just do something like the following? (The syntax is kinda messy/wrongish... can I even do that with arrays?)
Code:

string[] storeslines;;;;;;
Float[][] d = new float d[storelines.length][5];
for(int i=0;i<data.length;i++){
     d[i][] = (float[])split(storeslines[i]," ");
}