Генерация паролей

// PassGenerator.h
 
#pragma once
#ifndef PASSGENERATOR_H_
#define PASSGENERATOR_H_
 
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <time.h>
#include <string>
 
class Password
{
private:
    int amount;
    int size;
    std::string *passwords;
public:
    Password();
    ~Password();
    void generate();
    void show();
    void fileOutput();
};
 
Password::Password()
{
    std::cout << "Enter amount of passwords to generate: ";
    std::cin >> Password::amount;
    passwords = new std::string[amount];
    std::cout << "Enter size of password: ";
    std::cin >> Password::size;
}
 
void Password::generate()
{
    for (int i = 0; i < Password::amount; i++)
    {
        char *pass = new char[Password::size];
        for (int j = 0; j < Password::size; j++)
        {
            pass[j] = 48 + rand() % 122 ;
            while (pass[j] > 57 && pass[j] < 65 || pass[j] > 90 && pass[j] < 97)
            {
                pass[j] = 48 + rand() % 122;
            }
            Password::passwords[i] += pass[j];
        }
        delete[] pass;
    }
    std::cout << "Password generation ended\n\b";
}
 
void Password::show()
{
    for(int i = 0; i < Password::amount; i++)
    {
        std::cout << Password::passwords[i] << std::endl;
    }
}
 
void Password::fileOutput()
{
    std::ofstream fout;
    fout.open("Passwords.txt");
    for(int i = 0; i < Password::amount; i++)
    {
        fout << Password::passwords[i] << std::endl;
    }
    fout.close();
}
 
Password::~Password()
{
}
#endif

//PasswordGeneration.cpp
 
#include "PassGenerator.h"
 
int main()
{
    system("color 0A");
 
    srand(time(NULL));
    Password generator;
    generator.generate();
    generator.show();
    generator.fileOutput();
    generator.~Password();
 
    system("pause");
    return 0;
}

void Password::generate()
{
    for (int i = 0; i < Password::amount; i++)
    {
        char *pass = new char[Password::size];
        for (int j = 0; j < Password::size; j++)
        {
            pass[j] = static_cast<char>(48 + rand() % 74 );
            while (pass[j] > 57 && pass[j] < 65 || pass[j] > 90 && pass[j] < 97)
            {
                pass[j] = 48 + rand() % 74;
            }
            Password::passwords[i] += pass[j];
        }
        delete[] pass;
    }
    std::cout << "Password generation ended\n\b";
}