/**
* @param set
* @return
*/
public Set<T> difference(final Set<T> set) {
final Set<T> difference = new Set<T>(elements);
difference.differ(set);
return difference;
}
/**
* @param set
* @return
*/
public Set<T> intersection(Set<T> set) {
final Set<T> intersection = new Set<T>(elements);
intersection.intersect(set);
return intersection;
}
/**
* @param set
* @return
*/
public Set<T> union(final Set<T> set) {
final Set<T> union = new Set<T>(elements);
union.unite(set);
return union;
}
/**
* @param set
* @return
*/
public boolean equals(final Set<T> set) {
return cardinality() == set.cardinality() && elements.containsAll(set.elements);
}
/**
* @param set
* @return
*/
public boolean subset(final Set<T> set) {
return cardinality() <= set.cardinality() && set.elements.containsAll(elements);
}
/**
* @param set
* @return
*/
public Set<T> subtraction(final Set<T> set) {
final Set<T> subtraction = new Set<T>(elements);
subtraction.subtract(set);
return subtraction;
}