Thread: How to access private members in class?

Hi. I received errors such as float bmi is a private members. How can I access the private members in the main? Thanks in advance.

Code:

Code:

#include <iostream>
using namespace std;


class BMI
{
private:
    float height, weight, bmi;


public:
    BMI()
    {
        height = 1.0;
        weight = 1.0;
    }


    void set(float a, float b)
    {
        height = a;
        weight = b;
    }


    void calculate()
    {
        bmi = ((weight / 1000) / (height * height));
    }


    void display()
    {
        string status;


        if (bmi < 18.5)
        {
            status = "Underweight";
        }


        else if (bmi > 18.5 && bmi < 24.9)
        {
            status = "Normal";
        }


        else if (bmi > 25 && bmi < 29.9)
        {
            status = "Overweight";
        }


        else
        {
            status = "Obese";
        }


        cout << status;
    }
};
int main()
{
    BMI c;


    cout << "This program will calculate your body mass index." << endl;
    cout << "Enter your height in meter (m) unit : ";
    cin >> c.height;
    cout << "Enter your weight in kilogram (kg) unit : ";
    cin >> c.weight;
    cout << "Your bmi is : " << c.bmi << endl;
    c.display();
    return 0;
}

Output that needs to display:
This program will calculate your body mass index.Enter your height in meter (m) unit : 1.63Enter your weight in kilogram (kg) unit : 45Your bmi is : 16.937You are underweight.

Also replace these with dummy variables and call set() using those variables as arguments.

Code:

cout << "Enter your height in meter (m) unit : ";
    cin >> c.height;
    cout << "Enter your weight in kilogram (kg) unit : ";
    cin >> c.weight;

setter and getter methods

Code:

int getBMI()
    {

       return bmi = ((getWeight() / 1000) / (getHeight() * getHeight()));

    }