!7

static int n = 20000;

p {
  for (int listSize = 0; listSize < 100; listSize += 10) {
    O[] array = new O[n];
    long mem1 = usedMemoryAfterGC();
    for i over array: array[i] = rep(null, n);
    long mem2 = usedMemoryAfterGC();
    double objSize = (mem2-mem1)/(double) l(array);
    int rounded = iround(objSize);
    long f = guessArrayListSize(listSize);
    print("ArrayList size=" + listSize + ". Approximate object size: " + objSize + " => " + rounded + " bytes. Formula: " + f);
  }
}