AcademicTranscript

namespace AcademicTranscript
{
    class Student
    {
        private string _firstName;
        private string _lastName;
        private int _studentID;

        public string FirstName { get { return this._firstName; } }
        public string LastName { get { return this._lastName; } }
        public int StudentID { get { return this._studentID; } }

        public Student (string firstName, string lastName, int studentID)
        {
            this._firstName = firstName;
            this._lastName = lastName;
            this._studentID = studentID;
        }

        public string FullName()
        {
            return this._firstName + " " + this._lastName;
        }
    }

    class AcademicQuarter
    {
        private QuarterEnum _currentQuarter;
        private int _year;
        private double _gpa;
        private Course[] _courseList;

        public QuarterEnum CurrentQuarter { get { return this._currentQuarter; } }
        public int Year { get { return this._year; } }
        public double GPA
        {
            get
            {
                double crsGPA = 0;
                foreach (Course crs in this.CourseList)
                {
                    crsGPA += crs.Grade;
                }
                this._gpa = (crsGPA / this.CourseList.Length);
                return this._gpa;
            }
        }
        public Course[] CourseList
        {
            get
            {
                return this._courseList;
            }
            set
            {
                this._courseList = value;
            }
        }

        public enum QuarterEnum
        {
            Fall = 0,
            Winter,
            Spring,
            Summer
        }

        public AcademicQuarter(QuarterEnum qType, int year)
        {
            this._currentQuarter = qType;
            this._year = year;
        }

        public AcademicQuarter(QuarterEnum qType, int year, Course[] cList)
        {
            this._currentQuarter = qType;
            this._year = year;
            this.CourseList = cList;
        }
    }

    class Course
    {
        private int _id;
        private string _title;
        private int _credits;
        private double _grade;

        public int ID { get { return this._id; } }
        public string Title { get { return this._title; } }
        public int Credits { get { return this._credits; } }
        public double Grade
        {
            get
            {
                return this._grade;
            }
            set
            {
                this._grade = value;
            }
        }


        public Course(int cID, string title, int credits)
        {
            this._id = cID;
            this._title = title;
            this._credits = credits;
        }


        public void PrintCourses()
        {
            Console.WriteLine("Course: {0}\tCredits: {1} Grade: {2}", this.ID, this.Title, this.Credits);
        }
    }

    class AcademicTranscript
    {
        private Student _student;
        private AcademicQuarter[] _quarterArray;

        public AcademicTranscript(Student student)
        {
            this._student = student;
        }

        public Student CurrentStudent
        {
            get
            {
                return this._student;
            }
        }

        public AcademicQuarter[] QuarterArray
        {
            get
            {
                if (this._quarterArray == null)
                {
                    this._quarterArray = new AcademicQuarter[4];
                }

                return this._quarterArray;
            }
        }
        /// <summary>
        /// student name: leif
        /// student id: 2342
        ///
        /// quarter: fall of 2013
        /// course: phys 221 credits: 5 grade: 3.9
        /// GPA: 3.9
        /// Cumulative GPA: 3.9 blah blah blah
    ///
        /// </summary>
        public void PrintTranscript()
        {
            StringBuilder printOutput = new StringBuilder();
            printOutput.Append("Student Name: ");
            printOutput.Append(this.CurrentStudent.FullName());
            printOutput.AppendLine();
            printOutput.Append("Student ID: ");
            printOutput.Append(this.CurrentStudent.StudentID);
            printOutput.AppendLine();

            double cumulativeGpa = 0;
            int currentQuarterCount = 1;
            foreach (AcademicQuarter aq in this.QuarterArray)
            {
                if (aq != null)
                {
                    printOutput.AppendLine(aq.CurrentQuarter.ToString()); //add .ToString() to print out enum as "Fall"
                    printOutput.AppendLine(aq.Year.ToString());

                    foreach (Course crse in aq.CourseList)//add number of elements, divide total by number of elements in array
                    {
                        printOutput.AppendLine(crse.Title + " " + crse.ID.ToString() + " " + crse.Credits.ToString() + " " + crse.Grade.ToString());
                    }

                    printOutput.AppendLine("GPA: " + aq.GPA.ToString());
                    cumulativeGpa += aq.GPA;
                    printOutput.AppendLine("Cumulative GPA: " + (cumulativeGpa / currentQuarterCount).ToString());
                    currentQuarterCount++;
                }
            }

            Console.Write(printOutput.ToString());
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            AcademicTranscript transcript = PopulateData();
            transcript.PrintTranscript();
            Console.ReadKey();
        }

        /// <summary>
    /// Possibly use a sorting algo for this...
    ///
        /// create a transcript.AddQuarter that takes academic quarter as argument
        ///
        /// AddQuarter(Quarter quarter)
        /// {
        ///     what is the next available index QuarterArray
        ///     fill quarter into next available index
        /// }
        /// </summary>
        /// <returns></returns>
        static AcademicTranscript PopulateData()
        {
            Student student = new Student("Leif", "Svensson", 960019422);
            AcademicTranscript transcript = new AcademicTranscript(student);
            AcademicQuarter quarterFall = new AcademicQuarter(AcademicQuarter.QuarterEnum.Fall, 2012);
            quarterFall.CourseList = new Course[3];
            Course course1 = new Course(221, "Physics", 5);
            course1.Grade = 4.0;
            quarterFall.CourseList[0] = course1;
            Course course2 = new Course(152, "Calc", 5);
            course2.Grade = 3.8;
            quarterFall.CourseList[1] = course2;
            Course course3 = new Course(143, "BIT", 5);
            course3.Grade = 3.9;
            quarterFall.CourseList[2] = course3;

            transcript.QuarterArray[0] = quarterFall;//repeat for each quarter

            return transcript;

        }
    }
}