how to convert decimal to 8 bit binary - c++

Question

int a[9],b[9],i;
for(i=0; num>0; i++)
{
a[i]=num%2;
num= num/2;
}
I am working on decimal to binary conversion. I can convert themi want answer in 8 bits. And it gives me as, for example x =5, so output will be 101, but i want 00000101. Is there any way to append zeros in the start of array, without using any library.

Answer 1

The health clinic manages patients and the patient manages their own data.
You can run/check this code in https://repl.it/#JomaCorpFX/StdGetLine#main.cpp
Code
#include <iostream>
#include <string>
#include <vector>
class Patient
{
private:
std::string phoneNumber;
std::string name;
std::string email;
float weight;
float height;
public:
void SetName(const std::string &name)
{
this->name = name;
}
void SetEmail(const std::string &email)
{
this->email = email;
}
void SetPhoneNumber(const std::string &phoneNumber)
{
this->phoneNumber = phoneNumber;
}
void SetWeight(const float &weight)
{
this->weight = weight;
}
void SetHeight(const float &height)
{
this->height = height;
}
std::string GetName()
{
return this->name;
}
std::string GetEmail()
{
return this->email;
}
std::string GetPhoneNumber()
{
return this->phoneNumber;
}
float GetWeight()
{
return this->weight;
}
float GetHeight()
{
return this->height;
}
public:
};
class HealtClinic
{
private:
std::vector<Patient> patients;
public:
void AddPatient()
{
Patient p;
std::cout << "\nEnter name : ";
std::string sdata;
std::getline(std::cin, sdata);
p.SetName(sdata);
std::cout << "\nEnter email : ";
std::getline(std::cin, sdata);
p.SetEmail(sdata);
std::cout << "Enter phone number : ";
std::getline(std::cin, sdata);
p.SetPhoneNumber(sdata);
int idata;
std::cout << "Enter weight in kg : ";
std::cin >> idata;
p.SetWeight(idata);
std::cout << "Enter height in meters: ";
std::cin >> idata;
p.SetHeight(idata);
patients.push_back(p);
}
void ShowPatients()
{
std::cout << "--- PATIENTS ---" << std::endl;
for (int i = 0; i < patients.size(); i++)
{
std::cout << "--- " << i << std::endl;
std::cout << "Name: " << patients[i].GetName() << std::endl;
std::cout << "Email: " << patients[i].GetEmail() << std::endl;
std::cout << "Phone number: " << patients[i].GetPhoneNumber() << std::endl;
std::cout << "Weight: " << patients[i].GetWeight() << std::endl;
std::cout << "Height: " << patients[i].GetHeight() << std::endl;
std::cout << std::endl;
}
}
};
int main()
{
HealtClinic clinic;
clinic.AddPatient();
clinic.ShowPatients();
return EXIT_SUCCESS;
}
Output
Enter name : Joma
Enter email : joma#email.com
Enter phone number : 123456789
Enter weight in kg : 88
Enter height in meters: 1.8
--- PATIENTS ---
--- 0
Name: Joma
Email: joma#email.com
Phone number: 123456789
Weight: 88
Height: 1