编程学习网为您整理以下代码实例,主要实现:C++指向类的指针,希望可以帮到各位朋友。
#include <iostream>
using namespace std;
class Box {
public:
// Constructor deFinition
Box(double l = 2.0, double b = 2.0, double h = 2.0) {
cout <<"Constructor called." << endl;
length = l;
breadth = b;
height = h;
}
double Volume() {
return length * breadth * height;
}
private:
double length; // Length of a Box
double breadth; // Breadth of a Box
double height; // Height of a Box
};
int main(voID) {
Box Box1(3.3, 1.2, 1.5); // Declare Box1
Box Box2(8.5, 6.0, 2.0); // Declare Box2
Box *ptrBox; // Declare pointer to a class.
// Save the address of first object
ptrBox = &Box1;
// Now try to access a member using member access operator
cout << "Volume of Box1: " << ptrBox->Volume() << endl;
// Save the address of first object
ptrBox = &Box2;
// Now try to access a member using member access operator
cout << "Volume of Box2: " << ptrBox->Volume() << endl;
return 0;
}
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