这具体是什么类早已忘却,根据当年的注释里面有如下几个功能:
实现 float, int, double 类型的 max, min, abs 函数。
实现计算圆形面积,球体体积的函数。
实现计算矩形面积,长方体的函数。
/*
功能:实现MathUtility类
作者:windCoder
日期:2013-11-07
*/
#include <iostream>
using namespace std;
/************************************************************************
功能:实现 float, int, double 类型的 max, min, abs 函数。
************************************************************************/
class Complex
{
public:
Complex(int aX,int aY,float iX,float iY,double rX,double rY);
Complex();
~Complex();
int max(int aX,int aY);
int min(int aX,int aY );
int abs(int aX);
float max(float aX,float aY);
float min(float aX,float aY );
float abs(float aX);
double max(double aX,double aY);
double min(double aX,double aY );
double abs(double aX);
private:
int m_aX;
int m_aY;
float m_iX;
float m_iY;
double m_rX;
double m_rY;
};
Complex::Complex(int aX,int aY,float iX,float iY,double rX,double rY)
{
m_aX = aX;
m_aY = aY;
m_iX = iX;
m_iY = iY;
m_rX = rX;
m_rY = rY;
}
Complex::Complex()
{
m_aX = NULL;
m_aY = NULL;
m_iX = NULL;
m_iY = NULL;
m_rX = NULL;
m_rY = NULL;
}
Complex::~Complex()
{
}
int Complex:: max(int aX,int aY)
{
if (aX>aY)
{
return aX;
}
return aY;
}
int Complex::min(int aX,int aY )
{
if (aX<aY)
{
return aX;
}
return aY;
}
int Complex::abs(int aX)
{
if (aX>0)
{
return aX;
}
return -aX;
}
float Complex::max(float aX,float aY)
{
if (aX>aY)
{
return aX;
}
return aY;
}
float Complex::min(float aX,float aY )
{
if (aX<aY)
{
return aX;
}
return aY;
}
float Complex::abs(float aX)
{
if (aX>0)
{
return aX;
}
return -aX;
}
double Complex::max(double aX,double aY)
{
if (aX>aY)
{
return aX;
}
return aY;
}
double Complex::min(double aX,double aY )
{
if (aX<aY)
{
return aX;
}
return aY;
}
double Complex::abs(double aX)
{
if (aX>0)
{
return aX;
}
return -aX;
}
/*---------------------------------------------------------*/
/************************************************************************
功能:实现计算圆形面积,球体体积的函数。
************************************************************************/
class BallAndCircle
{
public:
BallAndCircle();
~BallAndCircle();
double getBallVolume(double iR);
double getCircleArea(double iR);
private:
double m_iR;
const double PI;
};
BallAndCircle::BallAndCircle():PI(3.14)
{
m_iR = 0;
}
BallAndCircle::~BallAndCircle(){};
double BallAndCircle::getBallVolume(double iR)
{
double result;
m_iR = iR;
result = (4*m_iR * m_iR * m_iR *PI)/3;
return result;
}
double BallAndCircle::getCircleArea(double iR)
{
double result;
m_iR = iR;
result = m_iR * m_iR *PI;
return result;
}
/*----------------------------------------------------------*/
/************************************************************************
功能:实现计算矩形面积,长方体的函数。
************************************************************************/
class RectangularAndCuboid
{
public:
RectangularAndCuboid();
~RectangularAndCuboid();
double getRectangularArea(double iLong,double iWidth);
double getCuboidVolume(double iLong,double iWidth,double iHigh);
private:
double m_iLong;
double m_iWidth;
double m_iHigh;
};
RectangularAndCuboid::RectangularAndCuboid()
{
m_iLong = NULL;
m_iWidth = NULL;
m_iHigh = NULL;
}
RectangularAndCuboid::~RectangularAndCuboid(){};
double RectangularAndCuboid::getRectangularArea(double iLong,double iWidth)
{
double result;
m_iLong = iLong;
m_iWidth = iWidth;
result = m_iLong * m_iWidth;
return result;
}
double RectangularAndCuboid::getCuboidVolume(double iLong,double iWidth,double iHigh)
{
double result;
m_iLong = iLong;
m_iWidth = iWidth;
m_iHigh =iHigh;
result = m_iLong * m_iWidth * m_iHigh;
return result;
}
/*----------------------------------------------------------*/
/************************************************************************
功能:主函数
************************************************************************/
int main(void)
{
Complex one;
BallAndCircle ball;
RectangularAndCuboid Rect,Cuboid;
double x,y,z=0;
//1 )实现 float, int, double 类型的 max, min, abs 函数。
cout<<"请输入两个实数:";
cin>>x>>y;
cout<<"两个数中大者为:"<<one.max(x,y)<<" "<<"小者为:"<<one.min(x,y)<<endl;
cout<<x<<"的绝对值是:"<<one.abs(x)<<endl;
cout<<y<<"的绝对值是:"<<one.abs(y)<<endl;
// 2 )实现计算圆形面积,球体体积的函数。
cout<<"请输入圆的半径:";
cin>>x;
cout<<"半径为"<<x<<"的圆的面积为:"<<ball.getCircleArea(x)<<endl;
cout<<"半径为"<<x<<"的球的体积为:"<<ball.getBallVolume(x)<<endl;
// 3 )实现计算矩形面积,长方体的函数。
cout<<"请输入长方形的长和宽:";
cin>>x>>y;
cout<<"长方形的面积为:"<<Rect.getRectangularArea(x,y)<<endl;
cout<<"请输入长方体的长、宽、高::";
cin>>x>>y>>z;
cout<<"长方体的体积为:"<<Cuboid.getCuboidVolume(x,y,z)<<endl;
system("pause");
return 0;
}