/**
* Inserts the specified element at the specified position in this list. Shifts the element
* currently at that position (if any) and any subsequent elements to the right (adds one to their
* indices).
*
* @param index index at which the specified element is to be inserted
* @param element element to be inserted
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
@Override
public void add(int index, Float element) {
rangeCheckForAdd(index);
ensureCapacityInternal(size + 1); // Increments modCount!!
System.arraycopy(elementData, index, elementData, index + 1, size - index);
elementData[index] = element;
size++;
}
/**
* Inserts all of the elements in the specified collection into this list, starting at the
* specified position. Shifts the element currently at that position (if any) and any subsequent
* elements to the right (increases their indices). The new elements will appear in the list in
* the order that they are returned by the specified collection's iterator.
*
* @param index index at which to insert the first element from the specified collection
* @param c collection containing elements to be added to this list
* @return <tt>true</tt> if this list changed as a result of the call
* @throws IndexOutOfBoundsException {@inheritDoc}
* @throws NullPointerException if the specified collection is null
*/
@Override
public boolean addAll(int index, Collection<? extends Float> c) {
rangeCheckForAdd(index);
Object[] a = c.toArray();
int numNew = a.length;
ensureCapacityInternal(size + numNew); // Increments modCount
int numMoved = size - index;
if (numMoved > 0) System.arraycopy(elementData, index, elementData, index + numNew, numMoved);
System.arraycopy(a, 0, elementData, index, numNew);
size += numNew;
return numNew != 0;
}