The C++ program to show and complete the Car class (in files Car.h and Car.cpp) with member functions to set and get the purchase price of a car is:
<h3>Car.h</h3>
#ifndef CARH
#define CARH
class Car{
private:
int modelYear;
int purchasePrice;
int currentValue;
public:
void SetModelYear(int userYear);
int GetModelYear() const;
void SetPurchasePrice(int purchasePrice);
int GetPurchasePrice() const;
void CalcCurrentValue(int currentYear);
void PrintInfo();
};
#endif // CARH
<h3>Car.cpp</h3>
#include<iostream>
#include<math.h>
#include "Car.h"
using namespace std;
void Car::SetModelYear(int userYear){
modelYear=userYear;
}
int Car::GetModelYear() const{
return modelYear;
}
void Car::SetPurchasePrice(int userPrice){
purchasePrice = userPrice;
}
int Car::GetPurchasePrice() const{
return purchasePrice;
}
void Car::CalcCurrentValue(int currentYear){
double depreciationRate = 0.15;
int carAge = currentYear- modelYear;
currentValue = (int)round(purchasePrice*pow((1-depreciationRate),carAge));
}
void Car::PrintInfo(){
cout<<"Car's information:\n";
cout<<"\t\tModel Year : "<<GetModelYear();
cout<<"\n\t\tPurchase price: "<<GetPurchasePrice();
cout<<"\n\t\tCurrentValue: "<<currentValue;
}
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