private ArrayListIndicesRandom RandomizeFromArray(ArrayList ar)
{
int index;
object [] array = (object [])ar.ToArray(typeof(object));
ArrayListIndicesRandom elements = new ArrayListIndicesRandom(ar.Count);
int left = ar.Count;
elements.Clear();
// Generate a random number that can be as big as the maximum -1
// Add the random element picked up element in the list
// The element just randomized gets out of pending list and replaced by the maximum -1 element
for (int i = 0; i < ar.Count; i++, left--)
{
index = random.Next(left);
elements.Add((int)array[index]);
array[index] = array[left - 1];
}
return(elements);
}
private ArrayListIndicesRandom RandomizeFromArray(ArrayList ar)
{
int index;
object []array = (object []) ar.ToArray (typeof (object));
ArrayListIndicesRandom elements = new ArrayListIndicesRandom (ar.Count);
int left = ar.Count;
elements.Clear ();
// Generate a random number that can be as big as the maximum -1
// Add the random element picked up element in the list
// The element just randomized gets out of pending list and replaced by the maximum -1 element
for (int i = 0; i < ar.Count; i++, left--) {
index = random.Next (left);
elements.Add ((int) array[index]);
array[index] = array[left - 1];
}
return elements;
}