clean up number utilities

NumberUtilities.java

@@ -1,12 +1,12 @@
- 
+
 
 
 public class NumberUtilities {
-    
-    public static String getRange(int start) {
+
+    public static String getRange(int stop) {
         return null;
     }
-    
+
     public static String getRange(int start, int stop) {
         return null;
     }
@@ -15,7 +15,7 @@ public class NumberUtilities {
     public static String getRange(int start, int stop, int step) {
         return null;
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
         return null;
     }