#include #include #include #include #include #include #include #include #include // Made by Kawaii >^.^< namespace patch { template std::string to_string(const T& n) { std::ostringstream stm; stm << n; return stm.str(); } } class Students { public: Students(std::string name, int age, std::string career, double grade) { this->name = name; this->age = age; this->career = career; this->grade = grade; } void writeInfo(std::string path) { std::ofstream winfo; winfo.open(path + this->name + ".txt"); winfo << this->name + "\n" + patch::to_string(this->age) + "\n" + this->career + "\n" + patch::to_string(this->grade); winfo.close(); } void readInfo(std::string path) { std::cout << "Name: " + this->name << std::endl; std::cout << "Age: " + patch::to_string(this->age) << std::endl; std::cout << "Career: " + this->career << std::endl; std::cout << "Grade: " + patch::to_string(this->grade) << std::endl; for (int i = 0; i < 15; i++) { std::cout << "-"; } std::cout << "\n"; } private: std::string name; int age; std::string career; double grade; }; int main() { try { struct stat st; if (stat("C:\\Students", &st) == 0) { if (st.st_mode & S_IFDIR != 0) { } } else { system("mkdir C:\\Students"); } std::string path = "C:\\Students\\"; std::cout << "1 -> Register a Student" << std::endl; std::cout << "2 -> Watch a student Information" << std::endl; std::cout << "3 -> Exit the program" << std::endl; int UserChoice; std::cout << "Your Choice: "; std::cin >> UserChoice; if (UserChoice != 1 && UserChoice != 2 && UserChoice != 3) { throw "error"; } if (UserChoice == 1) { std::string student_name; int student_age; std::string student_career; double student_grade; std::cout << "Insert the name of the student: "; std::cin >> student_name; std::cout << "Insert the age of the student: "; std::cin >> student_age; int possible_ages[46]; int a = 15; for (int x = 0; x < 46; x++) { possible_ages[x] = a; a++; } bool exists_age = std::find(std::begin(possible_ages), std::end(possible_ages), student_age) != std::end(possible_ages); if (exists_age == false) { throw "error"; } if (student_age > 60 || student_age < 15) { throw "error"; } std::cout << "Insert the career of the student: "; std::cin >> student_career; std::cout << "Insert the grade of the student(0-100): "; std::cin >> student_grade; if (student_grade > 100 || student_grade < 0) { throw "error"; } Students std(student_name, student_age, student_career, student_grade); std.writeInfo(path); std::cout << "-- Student Registered Successfully --" << std::endl; main(); } else if (UserChoice == 2) { std::string student_name; std::string line; int x = 0; std::string lines[4]; std::cout << "Insert the student name: "; std::cin >> student_name; std::ifstream rinfo(path + student_name + ".txt"); while(std::getline(rinfo, line)) { lines[x] = line; x++; } int age = atoi(lines[1].c_str()); double grade = atoi(lines[3].c_str()); Students std(student_name, age, lines[2], grade); std.readInfo(path); main(); } else { std::cout << "-- Thanks for using --" << std::endl; } } catch(...) { std::cout << "Error, Try again...." << std::endl; } return 0; }

Students Registration Program