point.cpp

《c＋＋大学教程实验指导书》源码

// point.cpp
// member function defintions for class Point
#include <iostream> 

using std::cout; 
using std::fixed;

#include <iomanip> 

using std::setprecision; 

#include "point.h"

// default constructor
Point::Point( double xValue, double yValue, double zValue) 
   : x( xValue ), y( yValue ), z( zValue )
{ 
   // empty body

} // end class Point constructor

// function setX definition
void Point::setX( double xValue )
{
   x = xValue;

} // end function setX

// return x
double Point::getX() const 
{ 
   return x; 

} // end function getX

// function setY definition
void Point::setY( double yValue )
{
   y = yValue;

} // end function setY

// return y
double Point::getY() const 
{ 
   return y; 

} // end function getY

// function setZ definition
void Point::setZ( double zValue )
{
   z = zValue;

} // end function setZ

// return z
double Point::getZ() const 
{ 
   return z; 

} // end function getZ

// function print definition
void Point::print() const
{
   cout << fixed
        << "The point is: [" << setprecision( 2 ) << x
        << ", " << setprecision( 2 ) << y << setprecision( 2 )
        << ", " << z << "]\n";

} // end function print

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