示例#1
0
        static void Main(string[] args)
        {
            // Part 1 - Create the Rating Book
            // Store Ratings in my electronic book using my method addRating
            RatingBook book = new RatingBook();

            book.AddRating(34);
            book.AddRating(65.5f);

            //difference between double and float
            //double d = 78.8;
            //float fl = 78.8f;

            // Create a brand new instance of RatingBook
            book = new RatingBook();
            book.AddRating(72); // How many Ratings do we have after that?

            // Multiple Variables pointing to the same object
            // The value inside of book is not a RatingBook object, but a pointer to a RatingBook object
            // Copy that pointer into another variable. Now both book and book2 referencing the same RatingBook
            RatingBook book2 = book;

            book2.AddRating(89); // How many Ratings do we have after that?

            // Statics usage
            Console.WriteLine(RatingBook.MinimumRating);

            // When we want stats we tell the RatingBook to calculate them
            RatingStats stats = book.CalculateStats();

            Console.WriteLine(stats.HighestGrade);
            Console.WriteLine(stats.LowestGrade);
            Console.WriteLine(stats.AverageGrade);
        }
示例#2
0
        // The RatingBook is responsible for storing the Ratings and compute stats
        public RatingStats CalculateStats()
        {
            RatingStats stats = new RatingStats();

            float sum = 0;

            foreach (float grade in ratings)
            {
                stats.HighestGrade = Math.Max(grade, stats.HighestGrade);
                stats.LowestGrade  = Math.Min(grade, stats.LowestGrade);
                sum += grade;
            }
            stats.AverageGrade = sum / ratings.Count;

            return(stats);
        }