Nick Satinover QuizWeek1

LoopFun.java

@@ -8,7 +8,12 @@ public class LoopFun
        * @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;
       }
 
       /**
@@ -19,13 +24,20 @@ public class LoopFun
        * @return Upper case string of the first letter of each word
        */
       public String acronym(String phrase) {
-          return null;
+          String[] strArr = phrase.split(" ");
+          String acronym = "";
+          for(int i = 0; i < strArr.length; i++)
+          {
+              String tempStr = strArr[i].substring(0, 1);
+              acronym = acronym.concat(tempStr.toUpperCase());
+          }
+          return acronym;
       }
 
       /**
        * To prevent anyone from reading our messages, we can encrypt it so it will only be readable by its
        * intended audience. This method encrypt the message by shifting the letter by 3 characters. If the character is
-       * at the end of the alphabet, it will wraps around.
+       * at the end of the alphabet, it will wrap around.
        * For example:
        *  'a' => 'd'
        *  'w' => 'z'
@@ -33,8 +45,20 @@ public class LoopFun
        *  'y' => 'b'
        * @param word
        * @return the encrypted string by shifting each character by three character
+       * ansi 97 ('a') to 122 ('z')
        */
       public String encrypt(String word) {
-          return null;
+          char[] charArr = word.toCharArray();
+          for(int i = 0; i < charArr.length; i++)
+          {
+              int tempInt = ((int)charArr[i]) + 3;
+              if(tempInt > 122)
+              {
+                  tempInt -= 26;
+              }
+              charArr[i] = (char)tempInt;
+          }
+          String returnStr = new String(charArr);
+          return returnStr;
       }
 }

MathUtilities.java

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

StringUtilities.java

@@ -1,13 +1,25 @@
 public class StringUtilities {
    public Character getMiddleCharacter(String word){
-       return null;
+       char middle;
+       if(word.length() % 2 == 1)
+       {
+           middle = word.charAt((word.length() - 1) / 2);
+       }
+       else
+       {
+           middle = word.charAt(word.length() / 2);        
+       }
+       return middle;
    }
    
    public String removeCharacter(String value, char charToRemove){
-     return null;  
+       String strChar = Character.toString(charToRemove);
+       String str = value.replaceAll(strChar, "");
+       return str;
    }
    
    public String getLastWord(String value) {
-       return null;
+       String[] strArr = value.split(" ");
+       return strArr[strArr.length - 1];
    }
 }

package.bluej

@@ -2,26 +2,30 @@
 dependency1.from=StringUtilitiesTest
 dependency1.to=StringUtilities
 dependency1.type=UsesDependency
-dependency2.from=BonusTest
-dependency2.to=Bonus
+dependency2.from=LoopFunTest
+dependency2.to=LoopFun
 dependency2.type=UsesDependency
 dependency3.from=MathUtilitiesTest
 dependency3.to=MathUtilities
 dependency3.type=UsesDependency
-editor.fx.0.height=722
-editor.fx.0.width=876
-editor.fx.0.x=158
-editor.fx.0.y=216
-objectbench.height=164
-objectbench.width=669
-package.divider.horizontal=0.6
-package.divider.vertical=0.7628294036061026
-package.editor.height=543
-package.editor.width=567
-package.editor.x=557
-package.editor.y=43
-package.frame.height=779
-package.frame.width=693
+editor.fx.0.height=1057
+editor.fx.0.width=936
+editor.fx.0.x=-240
+editor.fx.0.y=-1057
+editor.fx.1.height=1040
+editor.fx.1.width=876
+editor.fx.1.x=798
+editor.fx.1.y=-1057
+objectbench.height=147
+objectbench.width=556
+package.divider.horizontal=0.5692618806875632
+package.divider.vertical=0.8458458458458459
+package.editor.height=838
+package.editor.width=883
+package.editor.x=-240
+package.editor.y=-1057
+package.frame.height=1057
+package.frame.width=1009
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true
@@ -40,20 +44,19 @@ target1.width=110
 target1.x=110
 target1.y=150
 target2.height=50
-target2.name=BonusTest
+target2.name=LoopFunTest
 target2.showInterface=false
 target2.type=UnitTestTargetJunit4
-target2.width=80
+target2.width=110
 target2.x=120
-target2.y=270
-target3.association=BonusTest
+target2.y=360
 target3.height=50
-target3.name=Bonus
+target3.name=LoopFun
 target3.showInterface=false
 target3.type=ClassTarget
 target3.width=80
-target3.x=90
-target3.y=300
+target3.x=30
+target3.y=390
 target4.association=MathUtilitiesTest
 target4.height=50
 target4.name=MathUtilities
@@ -74,6 +77,6 @@ target6.height=50
 target6.name=MathUtilitiesTest
 target6.showInterface=false
 target6.type=UnitTestTargetJunit4
-target6.width=100
+target6.width=130
 target6.x=110
 target6.y=40