Select specific item in Arraylist of arrays

Question

I'm working with Processing and I have an Arraylist of arrays

ArrayList< ICurve []> c = new ArrayList< ICurve []> ();

I need to select a specific item in a specific array of my arraylist, but I can't understand how to do it. I know how to iterate inside the arraylist with the for cycle, but I can't understand how to select the item with a specific index.

Thanks in advance for your help!

v.k. · Accepted Answer · 2015-08-28 14:59:31Z

1

An Arraylist of arrays returns an array, so just use bracket notation:

ArrayList <Integer[]> a = new ArrayList <Integer[]> ();    
void setup(){
    a.add(new Integer[] {1,2,3});
    println(a.get(0)[1]);// prints 2
    }

edited Aug 28, 2015 at 14:59

answered Aug 27, 2015 at 20:59

v.k.

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Martyn Shutt · Accepted Answer · 2015-08-27 21:06:23Z

0

ArrayList< int[] > myArrayList = new ArrayList< int[]> ();
void setup()
{

  int[] myArray = {0, 1, 2, 3};
  myArrayList.add(myArray);
  println(myArrayList.get(0)[0]);

}

I've used a primitive datatype in this example, but the same principle applies.

answered Aug 27, 2015 at 21:06

Martyn Shutt

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