rectangle.cpp

来自「C++大学简明教程,解压就行没有密码。希望对大家有用」· C++ 代码 · 共 73 行

// Exercise 17.12: Rectangle.cpp
// Rectangle class member-function definitions.
#include <iostream> // required to perform C++-style stream I/O
#include <cmath>    // required for the sqrt function
#include "Rectangle.h"  // Rectangle class definition

using namespace std; // for accessing C++ Standard Library members

// Rectangle constructor 
Rectangle::Rectangle( double rectangleWidth, double rectangleLength )
   : TwoDimensionalShape( string( "rectangle" ) )  
{
   setWidth( rectangleWidth );
   setLength( rectangleLength );

} // end Rectangle constructor

// set the length
void Rectangle::setLength( double rectangleLength )
{
    if ( rectangleLength >= 0.0 )
    {
      length = rectangleLength;  
    } // end if
    else
    {
      length = 0.0;
    } // end else

} // end function setLength

// return length
double Rectangle::getLength()
{
    return length;

} // end function getLength

// set the width
void Rectangle::setWidth( double rectangleWidth )
{
    if ( rectangleWidth >= 0.0 )
    {
      width = rectangleWidth;  
    } // end if
    else
    {
      width = 0.0;
    } // end else

} // end function setWidth

// return width
double Rectangle::getWidth()
{
    return width;

} // end function getWidth

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