In this lab you are asked to create a C program to implement

In this lab, you are asked to create a C++ program to implement a bloodpressure class as defined below. The class reads from a blood pressure file (text), and calculates the average blood pressure for everyone. It also calculates the number of people in the file, the average of all of them, and the total number of blood pressures saved in the file. Practice to use a local variable, a static variable, and a global variable to store the results.

Define a global variable to store the total number of people in the file

Define a static variable in the average function to store the number of blood pressures

Print the output as the example below.

You need to create the program as shown in the lecture with three files: bloodpressure.h, bloodpressure.cpp, and Main.cpp to implement it and test it on the Main.cpp file. In the main() function, you need to create a bloodpressure object, load data from a file, calculate and print the average information as below.

----------------Input------------

ID                    Name             How many      Pressure measurements

4132               Tom                5                      80 90 81 100 89 79

5123               Jim                   4                      100 110 120 121 122

4322               Mike                3                      89 121 111

6544               Nancy            6                      95 122 112 121 123 99

---------------Output-----------

ID                    Name              Average Pressure

4132               Tom                            ???

5123               Jim                               ???

4322               Mike                            ???

6544               Nancy                         ???

The average blood pressure for all of them is ???

The total number of people in the file is ???

The total number of blood pressures in the file is ???

HEADER FILE:

#ifndef BLOODPRESSURE_H

#define BLOODPRESSURE_H

#include <string>

using namespace std;

class bloodpressure{

public:

bloodpressure();

void loadBP(string fileName);

float average(int SUM, int NUM);

void print();

private:

float totalAverage; // sum of all average blood pressures

int numberOfPeople; // total number of people in the file

int numberOfBP; // total number of blood pressures

};

#endif

Solution

// BloodPressure.h

#ifndef BLOODPRESSURE_H
#define BLOODPRESSURE_H
#include <string>
using namespace std;

class bloodpressure
{
   public:
       bloodpressure();
       void loadBP(string fileName);
       float average(int SUM, int NUM);
       void print();
   private:
       float totalAverage; // sum of all average blood pressures
       int numberOfPeople; // total number of people in the file
       int numberOfBP; // total number of blood pressures
};
#endif

// BloodPressure.pp

#include \"BloodPressure.h\"
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
bloodpressure::bloodpressure()
{
totalAverage = 0.0;
numberOfPeople = 0;
numberOfBP = 0;
}

float bloodpressure::average(int SUM, int NUM)
{
float avgResult = (float)SUM / NUM;
return avgResult;
}

void bloodpressure::loadBP(string filename)
{
string remaining;
ifstream infile(filename.c_str());
int pressure, totalSum = 0, totalmeasurements;
string name;
int inputId;
float avgResult = 0.0;   
float inputAverage = 0.0;
if (infile.is_open())
{
cout << \"ID\\tName\\tAverage Pressure\" << endl;
while (true)
{   
totalSum = 0;
avgResult = 0.0;
infile >> inputId;
cout << inputId << \"\\t\" ;
infile >> name;
cout << name << \"\\t\" ;
infile >> totalmeasurements;
for (int i = 0; i<totalmeasurements; i++)
{
infile >> pressure;   
totalSum = totalSum + pressure;
numberOfBP++;
}
getline(infile,remaining);
avgResult = average(totalSum, totalmeasurements);
cout << avgResult << endl;
inputAverage = inputAverage + avgResult;
numberOfPeople++;

if(infile.eof())
break;
}
totalAverage = inputAverage/numberOfPeople;
infile.close();
}
}

void bloodpressure::print()
{
cout << \"\ \ The average blood pressure for all of them is \" << totalAverage << endl;
cout << \"The total number of people in the file is \" << numberOfPeople << endl;
cout << \"The total number of blood pressures in the file is \" << numberOfBP << endl;
}

// main.cpp

#include <iostream>
#include <string.h>
#include <fstream>
#include \"BloodPressure.h\"

using namespace std;
int main()
{
bloodpressure bp;
bp.loadBP(\"data.txt\");
bp.print();
return 0;
}

/*
output:

ID Name Average Pressure
4132 Tom 88
5123 Jim 112.75
4322 Mike 107
6544 Nancy 112

The average blood pressure for all of them is 104.938
The total number of people in the file is 4
The total number of blood pressures in the file is 18

*/