{Joson QuizWeek1}

LoopFun.java

@@ -1,14 +1,17 @@
 public class LoopFun
 {
-
-      /**
+ /**
        * Given a number, return the factorial of that number.
        * For example, given 5, the factorial is 5 x 4 x 3 x 2 x 1 which should return 120.
        * @param number
        * @return the factorial of the number
        */
       public int factorial(int number){
-          return -1;
+          int fact = 1;
+          for (int i = 1; i <= number; i++) {
+              fact *= i;
+            }
+          return fact;
       }
 
       /**
@@ -19,8 +22,12 @@ public class LoopFun
        * @return Upper case string of the first letter of each word
        */
       public String acronym(String phrase) {
-          return null;
+          String [] word = phrase.split(" ");
+          String acr = Character.toString(word[0].charAt(0)) + 
+          Character.toString(word[1].charAt(0)) + Character.toString(word[2].charAt(0));
+          return acr.toUpperCase();
       }
+    
 
       /**
        * To prevent anyone from reading our messages, we can encrypt it so it will only be readable by its

MathUtilities.java

@@ -6,7 +6,8 @@ public class MathUtilities{
    * @return the sum of the two numbers
    */
   public int add(int num1, int num2){
-      return -1;
+      int result = num1 + num2;
+      return result;
   }
 
   /**
@@ -16,7 +17,8 @@ public class MathUtilities{
    * @return the sum of the two numbers
    */
   public double add(double num1, double num2){
-      return -1;
+      double result = num1 + num2; 
+      return result;
   }
 
   /**
@@ -25,7 +27,8 @@ public class MathUtilities{
    * @return the half of the number in double
    */
   public double half(int number) {
-      return -1;
+      double result = (double)number / 2; 
+      return result;
   }
 
   /**
@@ -34,7 +37,11 @@ public class MathUtilities{
    * @return true if the number is odd, false if it is even
    */
   public boolean isOdd(int number){
-      return false;
+      if (number % 2 != 0) {
+          return true;
+        } else {
+            return false; 
+        }
   }
 
 
@@ -44,7 +51,8 @@ public class MathUtilities{
    * @return the result of the number multiply by itself
    */
   public int square(int number) {
-      return -1;
+      int sq = number * number;
+      return sq;
   }
 
 }

StringUtilities.java

@@ -1,13 +1,40 @@
 public class StringUtilities {
    public Character getMiddleCharacter(String word){
-       return null;
+       int theMiddleOne;
+       if ((word.length()/2) != 0) {
+             theMiddleOne = ((word.length()/2) - 1);
+        } else {
+            theMiddleOne = (word.length()/2); 
+        }
+         return word.charAt(theMiddleOne);  
    }
+
    
-   public String removeCharacter(String value, char charToRemove){
-     return null;  
-   }
+public String removeCharacter(String value, char charToRemove){
+        StringBuilder sb = new StringBuilder(); 
+    
+        /*for (int i = 0; i < value.length(); i++) {
+            if (value.charAt(i).equals(charToRemove)) {
+                sb = sb.append(value.charAt(0, i)); 
+            }
+            String newVal = sb.append(value) + sb;
+        }
+        return newVal; 
+        */
+       return null;
+    }
+
    
    public String getLastWord(String value) {
-       return null;
-   }
+      StringBuilder sb = new StringBuilder();
+      for (int i = value.length()-1; i >= 0; i--) {
+          char z = value.charAt(i);
+          if (Character.isWhitespace(z)) {
+              break;
+            }
+            //return append();
+        }  
+   //return sb.append().toReverse();
+   return null;
 }
+}