?? rectangletype.h
字號:
#ifndef H_rectangleType
#define H_rectangleType
#include <iostream>
using namespace std;
class rectangleType
{
//Overload the stream insertion and extraction operators
friend ostream& operator << (ostream&, const rectangleType &);
friend istream& operator >> (istream&, rectangleType &);
public:
void setDimension(double l, double w);
double getLength() const;
double getWidth() const;
double area() const;
double perimeter() const;
void print() const;
rectangleType operator+(const rectangleType&) const;
//Overload the operator +
rectangleType operator*(const rectangleType&) const;
//Overload the operator *
bool operator==(const rectangleType&) const;
//Overload the operator ==
bool operator!=(const rectangleType&) const;
//Overload the operator !=
rectangleType();
rectangleType(double l, double w);
private:
double length;
double width;
};
#endif
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