public static void Main(string[] args)
{
Student paul = new Student("Paul");
Student sally = new Student("Sally");
paul.AddGrade(3, 4.0);
paul.AddGrade(4, 3.0);
sally.AddGrade(3, 3.0);
sally.AddGrade(3, 3.5);
int paulNumberOfCredits = paul.NumberOfCredits;
string paulGradeLevel = paul.GradeLevel;
double paulGpa = paul.Gpa;
int sallyNumberOfCredits = sally.NumberOfCredits;
string sallyGradeLevel = sally.GradeLevel;
double sallyGpa = sally.Gpa;
paul.NumberOfCredits = 91;
sally.NumberOfCredits = 61;
paulGradeLevel = paul.GetGradeLevel();
sallyGradeLevel = sally.GetGradeLevel();
Console.WriteLine("Paul Number of Credits = " + paul.NumberOfCredits.ToString());
Console.WriteLine("Paul's info: ");
Console.WriteLine("Gpa = " + Math.Round(paul.Gpa, 2, MidpointRounding.AwayFromZero).ToString());
Console.WriteLine("Grade Level = " + paulGradeLevel);
Console.WriteLine("Sally's info: ");
Console.WriteLine("Gpa = " + Math.Round(sally.Gpa, 2, MidpointRounding.AwayFromZero).ToString());
Console.WriteLine("Grade Level = " + sallyGradeLevel);
// use custom ToString() method written below
Console.WriteLine(paul.ToString());
Console.WriteLine(sally.ToString());
//use custom Equals and GetHashCode() methods written below
Console.WriteLine("paul == sally, using customn Equals() is : " + paul.Equals(sally).ToString());
Console.WriteLine("GetHasCode() for paul is: " + paul.GetHashCode());
Console.WriteLine("GetHasCode() for sally is: " + sally.GetHashCode());
Console.ReadLine();
}
