Adding the comments for the early CS's

CS5 - Challenge Solution/Main.java

@@ -1,26 +1,51 @@
 import java.util.Random;
 import java.util.Scanner;
 
+/*
+    CS5 Challenge Solution
+
+    Original Challenge Description: Write a program that requests an integer
+    from the user, and prints that many random numbers AND prints the sum 
+    and average of those numbers. 
+*/
 public class Main {
     public static void main(String[] args) {
+        //Setup our random number generator and a scanner
+        //to get input from the user
         Random random = new Random();
         Scanner scan = new Scanner(System.in);
 
+        //Get the number of random numbers the user 
+        //wants us to generate
         System.out.print("Number of random values to create: ");
         int numberToRandomize = scan.nextInt();
 
+        //Close the scanner, we shouldn't need it anymore. 
         scan.close();
 
+        //Create a variable to store the sum of all the numbers
+        //we're about to generate. Notice that it is a DOUBLE,
+        //not an int
         double sum = 0;
 
+        //Setup a for loop, this loop will run for the number
+        //of random numbers the user requested. 
         for(int i = 0; i < numberToRandomize; i++) {
+            //Generate a random number and store it temporarily
             double randomNumber = random.nextDouble();
 
+            //Properly print the current random number (i + 1), 
+            //along with the number that we actually generated
             System.out.println("Random Number " + (i + 1) + ": " + randomNumber);
 
+            //Add the current random number to the sum. 
+            //sum += randomNumber is equivalent to sum = sum + randomNumber
             sum += randomNumber;
         }
 
+        //Print the sum, and then print the average. 
+        //The average being the sum divided by the number of numbers
+        //to randomize requested by the user. 
         System.out.println("Sum = " + sum);
         System.out.println("Average = " + (sum / numberToRandomize));
     }