/**
* {@inheritDoc}
*
* <p>
*
* <p>This implementation iterates over the specified collection, checking each element returned
* by the iterator in turn to see if it's contained in this collection. If all elements are so
* contained <tt>true</tt> is returned, otherwise <tt>false</tt>.
*
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @see #contains(int)
*/
public boolean containsAll(IntCollection c) {
IntIterator e = c.iterator();
while (e.hasNext()) {
if (!contains(e.next())) {
return false;
}
}
return true;
}
/**
* {@inheritDoc}
*
* <p>
*
* <p>This implementation iterates over the specified collection, and adds each object returned by
* the iterator to this collection, in turn.
*
* <p>
*
* <p>Note that this implementation will throw an <tt>UnsupportedOperationException</tt> unless
* <tt>add</tt> is overridden (assuming the specified collection is non-empty).
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IllegalStateException {@inheritDoc}
* @see #add(int)
*/
public boolean addAll(IntCollection c) {
boolean modified = false;
IntIterator e = c.iterator();
while (e.hasNext()) {
if (add(e.next())) {
modified = true;
}
}
return modified;
}
/**
* {@inheritDoc}
*
* <p>
*
* <p>This implementation iterates over this collection, checking each element returned by the
* iterator in turn to see if it's contained in the specified collection. If it's not so
* contained, it's removed from this collection with the iterator's <tt>remove</tt> method.
*
* <p>
*
* <p>Note that this implementation will throw an <tt>UnsupportedOperationException</tt> if the
* iterator returned by the <tt>iterator</tt> method does not implement the <tt>remove</tt> method
* and this collection contains one or more elements not present in the specified collection.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @see #remove(int)
* @see #contains(int)
*/
public boolean retainAll(IntCollection c) {
boolean modified = false;
IntIterator e = iterator();
while (e.hasNext()) {
if (!c.contains(e.next())) {
e.remove();
modified = true;
}
}
return modified;
}