Which of the following is the correct way to declare a class in C++?
A. class Circle
{
private:
double radius;
public:
void Circle::setRadius(double radius);
double Circle::getDiameter();
double Circle::getArea();
double Circle::getCircumference();
}
B. class Circle
{
private:
double radius;
public:
void setRadius(double radius);
double getDiameter();
double getArea();
double getCircumference();
};
C. class Circle
{
private double radius;
public void setRadius(double radius);
public double getDiameter();
public double getArea();
public double getCircumference();
};
D. Circle::Circle(double radius)
{
private:
double radius = radius;
public:
void setRadius(double radius);
double getDiameter();
double getArea();
double getCircumference();
}