Aggregation.hpp

class Club {
public:
    // ...
private:
    std::list<Person*> members;
};

AssociationBidirectional.hpp

class Student {
public:
    // ...
private:
    Course course;
};

class Course {
public:
    // ...
private:
    Student student;
};

AssociationDirectional.hpp

class Student {
public:
    // ...
private:
    Name firstname;
    Name lastname;
};

Composition.hpp

class Company {
public:
    // ...
private:
    std::vector<Location> locations;
};

Dependency.hpp

class Student {
public:
    // ...
    void setName(Name&);
private:
    String firstname;
    String lastname;
};

Inheritance.hpp

class Student {};

class UndergradStudent : public Student {};

class GradStudent : public Student {};

class TA: public GradStudent {};

class RA: public GradStudent {};