Hi everybody!

I'm trying to use OOP for a game, but I'm not familiar with it. So I googled for an example for constructors and found this:
http://lernprocessing.wordpress.com/2010/01/06/objekte-und-klassen/
I tried to adapt the class part to get an easy constructor for my game, but somehow it doesn't work. When I extract the part I'm interested in from the working program, it works (I deleted the stuff I didn't need):

class Food {
 float xPos; 
 float yPos;
 
Food (float hxPos, float hyPos) {
   xPos = hxPos;
   yPos = hyPos;
}

void gibFutter() {
  Food [] Futter;
  Futter = new Food[50];
 
 for (int f=0; f<Futter.length; f++) {
   float xPos = random(10);
   float yPos = random(10);

   color clr = color(50,200,0,120);
   Futter[f] = new Food(xPos,yPos);
   }
}
}

I wanted to write the same code with other variabels for my program, but I won't work. It looks like this at the moment:

class Hindernisse {
  float hPosx;
  float hPosy;
  float hHoehe;
  color hFarbe;

 Hindernisse (float hPosx1, float hPosy1, int hHoehe1, color hFarbe1) {
   hPosx  = hPosx1;
   hPosy  = hPosy1;
   hHoehe = hHoehe1;
   hFarbe = hFarbe1;
 }

void makeHindernisse()
    {
    Hindernisse [] Obstacle;
    Obstacle = new Hindernisse[5];
    for (int a=0; a<Obstacle.length; a++) {
      float hPosx = random(10);
      float hPosy = random(10);
      float hHoehe = random(2);
      color hFarbe = color(255,0,0);
      Obstacle[a] = new Hindernisse(hPosx,hPosy,hHoehe,hFarbe);
      }               
    }
}

If you compare the two programs, you will see they are basically the same. That's why I don't understand why it doesn't work. I've been trying to fix this problem for a long time, but I don't know what else I could do to find a solution.

Can someone help me? I would apreciate it very much.

Thanks for your help.

mbbuehler