How to cast an ArrayList of objects to float in Processing

ArrayList a = new ArrayList();

for(int i = 0; i < a.size(), i++)

{

    fl开发者_C百科oat f = float(a.get(i));  // ERROR : cant convert Object to float

}

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Processing is a simpler java, so you can use the java syntax:

ArrayList<Float> a = new ArrayList<Float>();

a.add(1.0f); // "Autobox" a float into a Float object, adding it to the array

for (int i = 0; i < a.size(); i++)
{
    float f = a.get(i); // "Unbox" the Float object
}

Lookup autoboxing/unboxing.

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Must not be .NET, otherwise would be i < a.count;

float f = (float)(a.get(i)); ??