C++ programming problem The Class Workout represents the way some folks keep fit

Question

C++ programming problem

The Class Workout represents the way some folks keep fit. Consider the following diagrams below.

This instance was created by saying:

Workout weightsWorkout;
// 30 minute workout with a heart-rate of 165

This instance was created by saying:

Workout crewWorkout( 60, 155 );
// 60 minute workout with a heart-rate of 155

Each Workout is defined by its length and the heart-rate it achieved. For the constructors shown above, here is the class definition (.h)

Workout( );
Workout( int minutes, int heartRate );

int getLength( ) const;
int getHeartRate( ) const;

Workout ( );
Workout( int minutes, int heartRate );

int getLength( ) const;

int getHeartRate( ) const;

int my_Length; // this workout's length
int my_HeartRate; // this workout's acheived heart-rate

Based on the information shown here, a possible implementation (.cpp) for Workout is shown below.

Workout::Workout ()   
{
my_HeartRate = 165;
my_Length = 30;          
}

Workout::Workout( int len, int rate )
{
my_HeartRate = rate;
my_Length = len;          
}

int Workout::getLength() const         
{
return my_Length;        
}

int Workout::getHeartRate() const      
{
return my_HeartRate;     
}

Based on this implementation of Workout, define and implement the class BikeWorkout. A
BikeWorkout is a special kind of Workout that uses a bicycle and tracks a particular maximum
speed. The relationship between Workout and BikeWorkout is shown in the class diagram below.

// By default, a bike workout that uses machines, lasts 1 hour and get a heart rate of 175
BikeWorkout b;

// A bike workout that lasts for 30 minutes, achieving a maximum speed of 40 miles per hour
// and a heart rate of 185
BikeWorkout fastRide( 40, 30, 185 );

TO RECEIVE FULL CREDIT, YOUR BIKEWORKOUT CONSTRUCTOR MUST CALL THE PARENT-CLASS WORKOUT CONSTRUCTOR.

Workout lasts 30 minutes with a heart-rate of 165

This instance was created by saying:

Workout weightsWorkout;
// 30 minute workout with a heart-rate of 165

Workout lasts 60 minutes with a heart-rate of 155

This instance was created by saying:

Workout crewWorkout( 60, 155 );
// 60 minute workout with a heart-rate of 155

Explanation / Answer

#include<iostream>
using namespace std;

class Workout {
public:
Workout ( );
Workout( int minutes, int heartRate );
int getLength( ) const;
int getHeartRate( ) const;
private:
int my_Length; // this workout's length
int my_HeartRate; // this workout's acheived heart-rate
};

Workout::Workout ()
{
my_HeartRate = 165;
my_Length = 30;        
}
Workout::Workout( int len, int rate )
{
my_HeartRate = rate;
my_Length = len;        
}
int Workout::getLength() const       
{
return my_Length;      
}
int Workout::getHeartRate() const    
{
return my_HeartRate;   
}

class BikeWorkout: public Workout{
   private:
   int speed;
   public:
   BikeWorkout();
   BikeWorkout(int speed, int len, int rate );
};
BikeWorkout::BikeWorkout():Workout(60,175){}
BikeWorkout::BikeWorkout(int speed, int len, int rate ) :Workout(len, rate){
       this->speed = speed;
}

int main(){
    BikeWorkout b;
    // A bike workout that lasts for 30 minutes, achieving a maximum speed of 40 miles per hour
    // and a heart rate of 185
    BikeWorkout fastRide( 40, 30, 185 );
    return 0;
}

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