using System;

​

class Student

{

    // Properties

    public string Name { get; set; }

    public int Age { get; set; }

    private double _gpa;

    public double GPA

    {

        get { return _gpa; }

        set { _gpa = value; }

    }

​

    // Constructors

    public Student()

    {

        // Default constructor

    }

​

    public Student(string name, int age, double gpa)

    {

        Name = name;

        Age = age;

        GPA = gpa;

    }

​

    // Functions

    public void ShowGPA()

    {

        Console.WriteLine("GPA: {0:F2}", GPA);

    }

​

    public void LuckyDraw()

    {

        Random rand = new Random();

        int luckyNumber = rand.Next(1, 101); // Generate a random number between 1 and 100

        Console.WriteLine("Lucky number: {0}", luckyNumber);

    }

}

​

public class MainClass

{

    public static void Main()

    {

        // Create a student object using the basic constructor

        Student student1 = new Student();

        student1.Name = "John";

        student1.Age = 20;

        student1.GPA = 3.5;

​

        // Display information for student1

        Console.WriteLine("Student 1 Information:");

        Console.WriteLine("Name: {0}", student1.Name);

        Console.WriteLine("Age: {0}", student1.Age);

        student1.ShowGPA();

        student1.LuckyDraw();

        Console.WriteLine();

​

        // Create a student object using the second constructor

        Student student2 = new Student("Alice", 22, 3.8);

​

        // Display information for student2

        Console.WriteLine("Student 2 Information:");

        Console.WriteLine("Name: {0}", student2.Name);

        Console.WriteLine("Age: {0}", student2.Age);

        student2.ShowGPA();

        student2.LuckyDraw();

    }

}

​