Added comments to NumberUtilities for readability

NumberUtilities.java

@@ -2,7 +2,10 @@
         
         
 public class NumberUtilities {
-        
+    /**
+     * Takes in one parameter "stop" to create a string of numbers, starting
+     * from 0 to stop, not including stop.
+     */    
         
         public static String getRange(int stop) {
             String numberRange = "";
@@ -14,6 +17,9 @@ public class NumberUtilities {
         return numberRange;
     }
     
+    /**
+     * Takes 2 parameters to dictate the range of the string.
+     */
     public static String getRange(int start, int stop) {
         String numberRange = "";
         
@@ -24,7 +30,9 @@ public class NumberUtilities {
         return numberRange;
     }
 
-
+    /**
+     * Uses the iterator to step and create the numbers in the range.
+     */
     public static String getRange(int start, int stop, int step) {
         String numberRange = "";
         
@@ -35,6 +43,10 @@ public class NumberUtilities {
         return numberRange;
     }
     
+    /**
+     * Uses the modulus operator to check for even/odd numbers to add to the 
+     * numberRange string.
+     */
     public static String getEvenNumbers(int start, int stop) {
         String numberRange = "";
         
@@ -47,7 +59,9 @@ public class NumberUtilities {
         return numberRange;
     }
 
-
+    /**
+     * See "getEvenNumbers"
+     */
     public static String getOddNumbers(int start, int stop) {
         String numberRange = "";
         
@@ -60,7 +74,10 @@ public class NumberUtilities {
         return numberRange;
     }
 
-
+    /**
+     * Uses Math.pow to raise i to a specific power, then casts it to an int 
+     * so it can be passed into the string to be returned.
+     */
     public static String getExponentiations(int start, int stop, int exponent) {
         String numberRange = "";
         

TriangleUtilities.java

@@ -1,13 +1,25 @@
- 
+ import java.util.*;
 
 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+        // Use StringBuilder and a loop
+        
+        StringBuilder stars = new StringBuilder();
+        
+        for (int i = 0; i < numberOfStars; i++) {
+            stars.append("*"); 
+        }
+        
+        String starTriangle = stars.toString();
+        
+        return starTriangle;
     }
     
     public static String getTriangle(int numberOfRows) {
-        return null;
+        // numberOfRows -1 for each row 
+        // for loop for # of rows, decreasing by 1
+        return 
     }