@Override
public boolean subset(Set<E> S) {
if (setList.isEmpty()) {
return true;
}
do {
if (!S.setList.find(setList.retrieve())) {
return false;
}
} while (setList.goToNext());
return true;
}
@Override
public Set<E> intersection(Set<E> S) {
Set<E> intersection = new Set<E>();
if (!setList.goToFirst()) return intersection;
if (S.setList.isEmpty()) return intersection;
do {
E el = setList.retrieve();
if (S.setList.find(el)) {
intersection.addElement(el);
}
} while (setList.goToNext());
return intersection;
}
@Override
public Set<E> difference(Set<E> S) {
if (!setList.goToFirst()) return this;
if (S.isEmpty()) return this;
Set<E> difference = new Set<E>();
do {
E el = setList.retrieve();
if (!S.setList.find(el)) {
difference.addElement(el);
}
} while (setList.goToNext());
return difference;
}
@Override
public Table<K, V> clone() {
Table copy;
try {
copy = (Table) super.clone();
} catch (CloneNotSupportedException e) {
throw new Error("");
}
copy.table = new List<Mapping>();
Mapping map;
for (int i = 0; i < this.size(); i++) {
map = table.retrieve();
copy.addEntry(map.key, map.value);
table.goToNext();
}
return copy;
}