It would probably be best to either a. Change the constructor to work with ArrayLists or b. Change your draw() code use an array. Alternatively (and perhaps a better solution), you could move all of the constructor code out of the constructor and into a separate function; then, from the constructor, call the function. In another constructor, change the ArrayList to an array and call the function. See as follows:

1. //Untested
   
2. class Example {
3.   //Stuff
4.  
   
5.   Example(String s, int[] i) {
6.     initFuntion(s, i);
7.   }
8.  
   
9.   Example(String s, ArrayList[Integer] i) {
10.     int[] array = new int[i.size()];
11.     for(int j = 0; j < i.size(); j ++)
    
12.       array[j] = i.get(j);
13.    
    
14.     initFunction(s, array);
    
15.   }
16.  
    
17.   void initFunction(String s, int[] i) {
18.     //Init code
    
19.   }
    
20. }
    

Thanks calsign. Good to know. I found that I'll have to change more than i thought before. Simplifying the constructor  and a lot of stuff in the class, I have to change the way thing was done since i found a library that is going to provide me with different wrap of the data. Any way, as i said, it is good to know. :-)

For the record, you can use this() to call another constructor, but it must be the first instruction of the new constructor, which isn't possible with your need.
Now, if the first constructor used an array of Integer, it would have been easier:

1. class Example
2. {
3.   Example(String s, Integer[] ints)
4.   {
5.     println(ints);
6.   }
7.  
8.   Example(String s, ArrayList<Integer> lints)
9.   {
10.     this(s, lints.toArray(new Integer[lints.size()]));
11.   }
12. }
13. 
    
14. void setup()
15. {
16.   ArrayList<Integer> list = new ArrayList<Integer>();
17.   list.add(5); list.add(42);
18.   Example ex = new Example("x", list);
19. }

Hummm cool.. thanks