Update MP4

lab7_1/lab7_2_CalebFontenot/Form1.cs

@@ -6,13 +6,130 @@ namespace lab7_2_CalebFontenot
         {
             InitializeComponent();
         }
-
-        private void button1_Click(object sender, EventArgs e)
+        /*
+         * The Average method accepts an int array argument
+         * and returns the Average of the values in the array.
+         */
+        static private double Average(int[] iArray)
         {
+            int total = 0;      // Accumulator, initialized to 0
+            double average;     // To hold the average
 
+            // Step through the array, adding each element to the accumulator.
+            for (int index = 0; index < iArray.Length; index++)
+            {
+                total += iArray[index];
+            }
+
+            // Calculate the average.
+            average = (double) total / iArray.Length;
+
+            // Return the average.
+            return average;
         }
 
-        private void button2_Click(object sender, EventArgs e)
+        /* 
+         * The Highest method accepts an int array argument
+         * and returns the highest value in that array.
+        */
+        static private int Highest(int[] iArray)
+        {
+            // Declare a variable to hold the highest value, and initialize it with the first value in the array.
+            int highest = iArray[0];
+
+            /* 
+             * Step through the rest of the array, beginning at 
+             * element 1. When a value greater than the highest 
+             * is found, assign that value to the highest.
+            */
+            for (int index = 1; index < iArray.Length; index++)
+            {
+                if (iArray[index] > highest)
+                {
+                    highest = iArray[index];
+                }
+            }
+
+            // Return the highest value.
+            return highest;
+        }
+
+        /* 
+         * The Lowest method accepts an int array argument
+         * and returns the lowest value in that array.
+         */
+        static private int Lowest(int[] iArray)
+        {
+            // Declare a variable to hold the lowest value, and initialize it witth the first value in the array.
+            int lowest = iArray[0];
+
+            /* 
+             * Step through the rest of the array, beginning at 
+             * element 1. When a value greater than the lowest 
+             * is found, assign that value to the lowest.
+             */
+            for (int index = 1; index < iArray.Length; index++)
+            {
+                if (iArray[index] < lowest)
+                {
+                    lowest = iArray[index];
+                }
+            }
+            // Return the lowest value.
+            return lowest;
+
+        }
+        private void getScoresButton_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                // Local variables
+                const int SIZE = 5;             // Number of tests
+                int[] scores = new int[SIZE];   // Array of test scores
+                int index = 0;                  // Loop counter
+                int highestScore;                // To hold the highest score
+                int lowestScore;                // To hold the lowest score
+                double averageScore;            // To hold the average score
+                StreamReader inputFile;         // For file input
+
+                // Open the file and get a StreamReader object.
+                inputFile = File.OpenText("TestScores.txt");
+
+                // Read the test scores into the array.
+                while (!inputFile.EndOfStream && index < scores.Length)
+                {
+                    scores[index] = int.Parse(inputFile.ReadLine());
+                    index++;
+                }
+
+                // Close the file.
+                inputFile.Close();
+
+                //Display the test scores.
+                foreach (int value in scores)
+                {
+                    testScoresListBox.Items.Add(value);
+                }
+
+                // Get the highest, lowest, and average scores.
+                highestScore = Highest(scores);
+                lowestScore = Lowest(scores);
+                averageScore = Average(scores);
+
+                // Display the values.
+                highestScoreTextBox.Text = highestScore.ToString();
+                lowestScoreTextBox.Text = lowestScore.ToString();
+                averageScoreTextBox.Text = averageScore.ToString();
+
+            } 
+            catch (Exception ex)
+            {
+                // Display an error message.
+                MessageBox.Show(ex.Message);
+            }
+        }
+
+        private void exitButton_Click(object sender, EventArgs e)
         {
             this.Close();
         }