using System;
using System.Collections.Generic;
using System.Threading;
class Program
{
static string newLine = Environment.NewLine;
// name surname
static List<Tuple<string, string>> students = new List<Tuple<string, string>>();
static void Main(string[] args)
{
Console.OutputEncoding = System.Text.Encoding.UTF8;
PoweredBy();
FakeLoader();
Menu();
Environment.Exit(0);
}
static void Menu()
{
ShowMenuOptions();
while (true)
{
Console.Write("\rInsert an option number (1-5): ");
ConsoleKeyInfo keyInfo = Console.ReadKey();
char keyChar = keyInfo.KeyChar;
if (char.IsDigit(keyChar))
{
int input = int.Parse(keyChar.ToString());
if (input >= 1 && input <= 6)
{
switch (input)
{
case 1:
Menu__AddStudent();
break;
case 2:
Menu__DeleteStudent();
break;
case 3:
Menu__ShowAllStudents();
break;
case 4:
Menu__SearchStudent();
break;
case 5:
Menu__CreateDemoList();
break;
case 6:
Menu__Exit();
return;
}
}
}
}
}
static void Menu__AddStudent()
{
PoweredBy();
Console.Write("Enter student's first name: ");
string name = Console.ReadLine().Trim();
Console.Write("Enter student's surname: ");
string surname = Console.ReadLine().Trim();
if (!String.IsNullOrEmpty(name) && !String.IsNullOrEmpty(surname))
{
name = CapitalizeFirstLetter(name);
surname = CapitalizeFirstLetter(surname);
students.Add(Tuple.Create(name, surname));
Console.Write("Student " + name + " " + surname + " has been added.");
}
else
{
Console.Write("Student has not been added due to missing information.");
}
Thread.Sleep(2500);
ShowMenuOptions();
}
static void Menu__DeleteStudent()
{
PoweredBy();
if (students.Count != 0)
{
Console.Write("Enter student's name to delete: ");
string name = Console.ReadLine().Trim();
Console.Write("Enter student's surname to delete: ");
string surname = Console.ReadLine().Trim();
name = CapitalizeFirstLetter(name);
surname = CapitalizeFirstLetter(surname);
var studentToDelete = students.Find(student => student.Item1 == name && student.Item2 == surname);
if (studentToDelete != null)
{
students.Remove(studentToDelete);
Console.Write("Student " + name + " " + surname + " has been deleted.");
}
else
{
Console.Write("Student not found.");
}
}
else
{
ErrorText("No students on the list. You cannot delete a student.");
}
Thread.Sleep(2500);
ShowMenuOptions();
}
static void Menu__ShowAllStudents()
{
PoweredBy();
if (students.Count != 0)
{
TitleLine("List of all students:");
int index = 1;
foreach (var student in students)
{
Console.WriteLine(index++ + ". " + student.Item1 + " " + student.Item2);
}
Console.Write(newLine + "Press spacebar button to exit to main menu.");
Console.ReadKey();
}
else
{
ErrorText("No students on the list. Cannot show all students.");
Thread.Sleep(2500);
}
ShowMenuOptions();
}
static void Menu__SearchStudent()
{
PoweredBy();
if (students.Count != 0)
{
Console.Write("Enter student's name to search: ");
string name = Console.ReadLine().Trim();
Console.Write("Enter student's surname to search: ");
string surname = Console.ReadLine().Trim();
name = CapitalizeFirstLetter(name);
surname = CapitalizeFirstLetter(surname);
var studentFound = students.Find(student => student.Item1 == name && student.Item2 == surname);
if (studentFound != null)
{
Console.Write("Student found: " +studentFound.Item1 + " " +studentFound.Item2);
}
else
{
Console.Write("Student not found.");
}
}
else
{
ErrorText("No students on the list. You cannot search for a student.");
}
Thread.Sleep(2500);
ShowMenuOptions();
}
static void Menu__CreateDemoList()
{
PoweredBy();
List<Tuple<string, string>> demoStudents = new List<Tuple<string, string>>()
{
Tuple.Create("Ivan", "Ivanov"),
Tuple.Create("Maria", "Petrova"),
Tuple.Create("Alexei", "Sidorov"),
Tuple.Create("Anna", "Kuznetsova"),
Tuple.Create("Dmitry", "Popov"),
Tuple.Create("Olga", "Volkova"),
Tuple.Create("Sergey", "Mikhailov"),
Tuple.Create("Ekaterina", "Fedorova"),
Tuple.Create("Andrei", "Nikolaev"),
Tuple.Create("Yulia", "Smirnova")
};
students.AddRange(demoStudents);
Console.Write("Demo list of students has been created.");
Thread.Sleep(2500);
ShowMenuOptions();
}
static void Menu__Exit()
{
PoweredBy();
Console.Write("Bye! Do not forget to send greetings to the DJ and Junior Tours!");
Thread.Sleep(2500);
}
static void ShowMenuOptions()
{
PoweredBy();
TitleLine("Choose one of the options");
Console.WriteLine
(
"1 - To Enter a student" + newLine
+ "2 - To Delete Student" + newLine
+ "3 - To Show All Students" + newLine
+ "4 - To Search a Student" + newLine
+ "5 - Create Demo list of students" + newLine
+ "6 - To Exit" + newLine
);
}
static string CapitalizeFirstLetter(string text)
{
if (!String.IsNullOrEmpty(text))
return char.ToUpper(text[0]) + text.Substring(1).ToLower();
return text;
}
static void ErrorText(string text)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(text);
Console.ForegroundColor = ConsoleColor.White;
}
static void TitleLine(string text)
{
Console.BackgroundColor = ConsoleColor.White;
Console.ForegroundColor = ConsoleColor.Black;
Console.WriteLine(" " + text + " ");
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.White;
}
static void PoweredBy()
{
string coder = "Powered by DJ KrassiBoy";
string welcome = "Welcome to the student management program of 11th A GRADE";
string border = new string('*', welcome.Length + 4);
Console.Clear();
Console.WriteLine
(
border + newLine
+ "* " + coder.PadRight(border.Length - 3) + "*" + newLine
+ "* " + welcome.PadRight(border.Length - 3) + "*" + newLine
+ border + newLine
);
}
static void FakeLoader(string text = "Loading")
{
string loadingText = text;
int dotCount = 3; // Number of dots in the animation
Random random = new Random(); // Random number generator
int cycles = random.Next(3, 6); // Random number of animation cycles between 3 and 6
string clearLine = new string(' ', loadingText.Length + dotCount); // Clear line for erasing content
for (int j = 0; j < cycles; j++) // Loop for the number of animation cycles
{
for (int i = 0; i <= dotCount; i++) // Loop through each animation step
{
Console.Write("\r" + clearLine); // Clear the current line
Console.Write("\r" + loadingText + new string('.', i)); // Display the loading text with dots
Thread.Sleep(500); // Wait for the next frame - delay between frames in milliseconds
}
}
Console.Write("\r" + clearLine + "\n");
}
}
