vehicle.cpp

《c＋＋大学教程实验指导书》源码

// Chapter 10 of C++ How to Program
// vehicle.cpp
#include <iostream>

using std::cout;
using std::endl;
using std::ostream;

#include "vehicle.h"

// constructor
Vehicle::Vehicle( const int doors, const int cylinders, 
   string color, double initialFuel, 
				   const int transmission ) 
   : numberOfDoors( doors ), numberOfCylinders( cylinders ),
     transmissionType( transmission )
{
   setFuelLevel( initialFuel );

   setColor( color );

} // end class Vehicle constructor

// function print definition
void Vehicle::print() const
{
   cout << "\tNumber of doors: " << getNumberOfDoors()
   	     << "\n\tNumber of cylinders: " << getNumberOfCylinders()
   	     << "\n\tTransmission type: " << getTransmissionType()
    	    << "\n\tColor: " << getColor()
   	     << "\n\tFuel level: " << getFuelLevel() << endl;

} // end function print

// function setColor definition
void Vehicle::setColor( string color )
{
   vehicleColor = color;

} // end function setColor

// function setFuelLevel definition
void Vehicle::setFuelLevel( double amount ) 
{
   // assume 20 gallons is a full tank
   if ( amount > 0.0 && amount <= 20.0 ) 
      fuelLevel = amount;
   else
      fuelLevel = 5.0;

} // end function setFuelLevel

// return color
string Vehicle::getColor() const
{   
   return vehicleColor;

} // end function getColor
 
// return fuelLevel 
double Vehicle::getFuelLevel() const
{
   return fuelLevel;

} // end function getFuelLevel

// return transmissionType
int Vehicle::getTransmissionType() const
{
   return transmissionType;

} // end function getTransmissionType
   
// return numberOfDoors
int Vehicle::getNumberOfDoors() const
{
   return numberOfDoors;

} // end function getNumberOfDoors

// return numberOfCylinders
int Vehicle::getNumberOfCylinders() const
{
   return numberOfCylinders;   

} // end function getNumberOfCylinders 

// return class name
string Vehicle::getClassName() const
{
   return "Vehicle";

} // end function getClassName



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