public class Student

{

    // 1. [Code] Create an auto-implementated property Name of type string

    public string Name { get; set; }

​

    // 2. [Code] Create an auto-implementated property Age of type int

    public int Age { get; set; }

​

    // 3. [Code] Create a private field _GPA of type double and a public property GPA // where GPA should never be negative.

    private double _GPA;

    public double GPA

    {

        get { return _GPA; }

        set { _GPA = value < 0.0 ? 0.0 : value; }

    }

​

    // 4. [Code] Create the first constructor with no parameters

    public Student(){}

​

    // 5. [Code] Create the second constructor with 3 parameters to set up the 3 properties

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

    {

        this.Name = name;

        this.Age = age;

        this.GPA = gpa;

    }

​

    // 6. [Code] Method ShowGPA

    public double ShowGPA(string strType)

    {

        double gpa = strType == "adjusted" ? _GPA * 1.15 : _GPA;

        return gpa > 4.0 ? 4.0 : gpa;

    }

​

    // 7. [Code] Method LuckyDraw

    public bool LuckyDraw()

    {

        int sum = Name.Length + Age;

        return (sum % 4 == 0);

    }

}

​

// 8. [Code] Create a student object by using the values above.

Student student = new Student("Mary", 18, 3.6);

​

// 9. [Code] Call ShowGPA ("regular"), and display return value

Console.WriteLine("Regular GPA: {0}", student.ShowGPA("regular"));

​

// 10. [Code] Call ShowGPA ("adjusted"), and display return value

Console.WriteLine("Adjusted GPA: {0}", student.ShowGPA("adjusted"));

​

// 11. [Code] Call LuckyDraw, and display return value

Console.WriteLine("Lucky Draw: {0}", student.LuckyDraw());