| Introduction to OOP | Chapter 14: Polymorphism and Software Reuse: | next | previous | audio | real | text |
Everything must be redefined, but implementation can make use of the list data structure.
class Set {
public:
void add(int);
int includes(int);
void remove(int);
int firstElement();
private:
List data;
};
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void Set::add (int x)
{
if (! data.includes(x))
data.add(x);
}
int Set::includes (int x)
{ return data.includes(x); }
void Set::remove (int x)
{ data.remove(x); }
int Set::firstElement ()
{ return data.firstElement(); }
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