Finished TestScores

src/Main.java

@@ -5,7 +5,7 @@ import Ship.*;
 public class Main {
     public static void main(String[] args) {
         // For testing q1
-        /*
+
         // Testing the rough version of SavingsAccount
         SavingsAccount SA = new SavingsAccount(30, 2);
         System.out.println(SA);
@@ -13,7 +13,9 @@ public class Main {
         System.out.println(SA);
         SA.withdraw(5);
         System.out.println(SA);
-        */
+
+
+
 
         // For testing q3
         Ship[] ships = new Ship[3];
@@ -26,5 +28,31 @@ public class Main {
         }
 
 
+        // For testing q5
+        int[] scores1 = {87, 21, 99, 100, 100, 65, 72, 0, 90, 81, 78};
+        int[] scores2 = {87, -21, 99, 100, 100, 65, 72, 0, 90, 81, 78};
+        int[] scores3 = {87, 21, 99, 101, 100, 65, 72, 0, 90, 81, 78};
+
+        TestScores TS1 = new TestScores(scores1);
+        TestScores TS2 = new TestScores(scores2);
+        TestScores TS3 = new TestScores(scores3);
+
+        try {
+            System.out.println("Average of Test Scores 1: " + TS1.getAverage());
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+        }
+
+        try {
+            System.out.println("Average of Test Scores 2: " + TS2.getAverage());
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+        }
+
+        try {
+            System.out.println("Average of Test Scores 3: " + TS3.getAverage());
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+        }
     }
 }

src/TestScores.java

@@ -1,3 +1,37 @@
+/**
+ * TestScores class will take an array of test Scores, and has a method to determine average
+ */
 public class TestScores {
+    int[] scores; // The array of test scores
+
+    /**
+     * Constructor taking array of test scores
+     * @param scores The array of scores
+     */
+    public TestScores(int[] scores) {
+        this.scores = scores;
+    }
+
+    /**
+     * Method to return average of test scores. Throws IllegalArgumentException if a score is
+     * negative or over 100
+     * @return Average of the scores array
+     */
+    public double getAverage() {
+        double sum = 0; // Sum of all the scores
+        double average; // Average to be returned
+        for(int x : scores) {
+            // If score invalid, throw exception
+            if(x > 100 || x < 0) {
+                throw new IllegalArgumentException("Invalid score " + x + ". Scores must be between 0 and 100");
+            }
+            else {
+                sum += x;
+            }
+        }
+        // Find average and return it
+        average = sum / scores.length;
+        return average;
+    }
 
 }