CMPSC 32 Lecture Notes - Lecture 11: Abstract Type
Document Summary
Student r = student("richert", 21, 111); cout << r. tostring() << endl; // student. Person s = student("t", 12, 11112); cout << s. tostring() << endl; // person. Person* t = new student("r", 16, 2000); cout << t->tostring() << endl; // student. Base class has certain attributes, but don"t know how to implement that. Abstract class: a class with one or more pure virtual functions. // shape. h class shape { public: virtual double area(); #include "shape. h" class rectangle: public shape { public: Rectangle(double length, double width) { this->length = length; this->width = width; virtual double area() { return length * width; private: double length; double width; #include "shape. h" class square: public shape { public: Square(double side) { this->side = side; virtual double area() { return side * side; private: double side; Square *s = new square(4); cout << s->area() << endl; Shape *shape[2]; shape[0] = new square(10); shape[1] = new rectangle(3,4);
