Read class objects directly into a vector in c++ - c++

Question

So I've started learning vectors in c++, and I made this program, but I dont like the fact that I read the object data into a C style array, and then I transfer all the data into a vector.
Is it possible to read the data into the vector, without using the C style array?
This is my code:
#include <iostream>
#include <vector>
#include <stdlib.h>
using std::cout;
using std::cin;
using std::endl;
class number
{
private:
std::string name;
float n1_;
int n2_;
public:
number() = default;
~number() = default;
public:
void read();
float perMonth(){return n1_ * n2_;}
float perYear(){return perMonth() * 12;}
std::string get_Name(){return name;}
};
void number::read()
{
cout << "Worker name: "; cin >> name;
n1_ = rand() % 100 + 3;
n2_ = rand() % 100 + 3;
}
int main()
{
int n;
cout << "Insert number of workers:"; cin >> n;
number pers[30];
for(int i = 0; i < n; i++)
pers[i].read();
std::vector<number> people;
for(int i = 0; i < n; i++)
people.push_back(pers[i]);
for(number pr : people)
{
cout << "Name: " << pr.get_Name() << endl;
cout << "Salary per month: " << pr.perMonth() << endl;
cout << "Salary per year: " << pr.perYear() << endl << endl;
}
}

Answer 1

#include <iostream>
#include <vector>
#include <stdlib.h>
using std::cout;
using std::cin;
using std::endl;
class number
{
private:
std::string name;
float n1_;
int n2_;
public:
number() = default;
~number() = default;
public:
void read();
float perMonth(){return n1_ * n2_;}
float perYear(){return perMonth() * 12;}
std::string get_Name(){return name;}
};
void number::read()
{
cout << "Worker name: "; cin >> name;
n1_ = rand() % 100 + 3;
n2_ = rand() % 100 + 3;
}
int main()
{
int n;
cout << "Insert number of workers:"; cin >> n;
std::vector<number> people(n);
//N.B that pr is a non const reference in this loop
for(number& pr : people){
pr.read();
}
for(number pr : people)
{
cout << "Name: " << pr.get_Name() << endl;
cout << "Salary per month: " << pr.perMonth() << endl;
cout << "Salary per year: " << pr.perYear() << endl << endl;
}
}

Answer 2

Yes, You can put objects into std::vector without using an array.
int main()
{
int n;
cout << "Introduceti numarul de lucratori:"; cin >> n;
std::vector<number> people;
for(int i = 0; i < n; i++)
{
number pers();
pers.read();
people.push_back(per);
}
for(number pr : people)
{
cout << "Name: " << pr.get_Name() << endl;
cout << "Salary per month: " << pr.perMonth() << endl;
cout << "Salary per year: " << pr.perYear() << endl << endl;
}
}