Quiz Week 1 submission

LoopFun.java

@@ -1,40 +1,77 @@
+package QuizWeek1;
+
 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;
-      }
-
-      /**
-       * Given a phrase, get the acronym of that phrase. Acronym is the combination of
-       * the first character of each word in upper case.
-       * For example, given "Ruby on Rails", this method will return "ROR"
-       * @param phrase
-       * @return Upper case string of the first letter of each word
-       */
-      public String acronym(String phrase) {
-          return null;
-      }
-
-      /**
-       * 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.
-       * For example:
-       *  'a' => 'd'
-       *  'w' => 'z'
-       *  'x' => 'a'
-       *  'y' => 'b'
-       * @param word
-       * @return the encrypted string by shifting each character by three character
-       */
-      public String encrypt(String word) {
-          return null;
-      }
+    /**
+     * 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){
+        int result = 1;
+        if (number == 0){
+            result = 1;
+        } else {
+            for (int i = 1; i <= number; i++){
+                result *= i;
+
+            }
+
+        }
+        return result;
+    }
+
+    /**
+     * Given a phrase, get the acronym of that phrase. Acronym is the combination of
+     * the first character of each word in upper case.
+     * For example, given "Ruby on Rails", this method will return "ROR"
+     * @param phrase
+     * @return Upper case string of the first letter of each word
+     */
+    public String acronym(String phrase) {
+        String newPhrase = phrase.toUpperCase();
+        
+        char[] charArray = newPhrase.toCharArray();
+        String firstLet = Character.toString(charArray[0]);
+        //System.out.println(firstLet);
+        
+        for (int i = 1; i < charArray.length; i++){
+            if (charArray[i] == ' '){
+                System.out.println(charArray[i]);
+                firstLet += (charArray[i]+1);
+                System.out.println(firstLet);
+            }
+        }
+
+        
+        return firstLet;
+    }
+
+    /**
+     * 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.
+     * For example:
+     *  'a' => 'd'
+     *  'w' => 'z'
+     *  'x' => 'a'
+     *  'y' => 'b'
+     * @param word
+     * @return the encrypted string by shifting each character by three character
+     */
+    public String encrypt(String word) {
+        // ASCII Table - a = 97, z = 122
+
+        char[] charArray = word.toCharArray();
+        for (int i = 0; i < charArray.length; i++){
+            (int)charArray[i] += 3;
+            if ((int)charArray[i] > 119){
+                (int)charArray[i] -= 23;
+            }
+        }
+
+        return null;
+    }
 }

LoopFunTest.java

@@ -1,3 +1,5 @@
+package QuizWeek1;
+
 
 
 import static org.junit.Assert.*;

MathUtilities.java

@@ -1,50 +1,55 @@
-public class MathUtilities{
-  /**
-   * Add two number together
-   * @param num1 first number
-   * @param num2 second number
-   * @return the sum of the two numbers
-   */
-  public int add(int num1, int num2){
-      return -1;
-  }
+package QuizWeek1;
 
-  /**
-   * Add two number together
-   * @param num1 first number
-   * @param num2 second number
-   * @return the sum of the two numbers
-   */
-  public double add(double num1, double num2){
-      return -1;
-  }
+public class MathUtilities{
+    /**
+     * Add two number together
+     * @param num1 first number
+     * @param num2 second number
+     * @return the sum of the two numbers
+     */
+    public int add(int num1, int num2){
+        return (num1 + num2);
+    }
 
-  /**
-   * Get half the value of the number
-   * @param number the number given
-   * @return the half of the number in double
-   */
-  public double half(int number) {
-      return -1;
-  }
+    /**
+     * Add two number together
+     * @param num1 first number
+     * @param num2 second number
+     * @return the sum of the two numbers
+     */
+    public double add(double num1, double num2){
+        return (num1 + num2);
+    }
 
-  /**
-   * Determine if the number is odd
-   * @param number the number given
-   * @return true if the number is odd, false if it is even
-   */
-  public boolean isOdd(int number){
-      return false;
-  }
+    /**
+     * Get half the value of the number
+     * @param number the number given
+     * @return the half of the number in double
+     */
+    public double half(int number) {
+        double newNum = (double)number;
+        return (newNum / 2);
+    }
 
+    /**
+     * Determine if the number is odd
+     * @param number the number given
+     * @return true if the number is odd, false if it is even
+     */
+    public boolean isOdd(int number){
+        boolean tOrF = true;
+        if (number % 2 == 0){
+            tOrF = false;}
+        return tOrF;
+    }
 
-  /**
-   * Multiply the number by itself
-   * @param number the number given
-   * @return the result of the number multiply by itself
-   */
-  public int square(int number) {
-      return -1;
-  }
+    /**
+     * Multiply the number by itself
+     * @param number the number given
+     * @return the result of the number multiply by itself
+     */
+    public int square(int number) {
+        return (number * number);
+    }
 
 }

MathUtilitiesTest.java

@@ -1,3 +1,5 @@
+package QuizWeek1;
+
 
 
 import static org.junit.Assert.*;

StringUtilities.java

@@ -1,13 +1,53 @@
+package QuizWeek1;
+
 public class StringUtilities {
-   public Character getMiddleCharacter(String word){
-       return null;
-   }
-   
-   public String removeCharacter(String value, char charToRemove){
-     return null;  
-   }
-   
-   public String getLastWord(String value) {
-       return null;
-   }
+    public Character getMiddleCharacter(String word){
+        char middle;
+        int mid;
+        String midString = "";
+
+        //find index of middle letter
+        mid = ((word.length())/2);
+        System.out.println(mid);
+
+        //midString = word.substring(mid, (mid+1));
+        middle = word.charAt(mid);
+
+        // char[] charArray = word.toCharArray();
+
+        // middle = charArray[mid];
+        //System.out.println(middle);
+
+        return middle;
+    }
+
+    public String removeCharacter(String value, char charToRemove){
+        String newWord = value.substring(0, charToRemove-1) + value.substring((charToRemove-1) + 1); 
+        System.out.println(newWord);
+        return newWord;  
+    }
+
+    public String getLastWord(String value) {
+        int i = 0;
+        int pos;
+
+        int len = (value.length()-1);
+        System.out.println(len);
+        int count = len;
+
+        char[] charArray = value.toCharArray();
+
+        //loop through until find last space
+        while (charArray[count] != ' '){
+
+            count--;
+
+        }
+
+        String last = value.substring(count + 1);
+        System.out.println(last);
+
+       
+        return last;
+    }
 }

StringUtilitiesTest.java

@@ -1,3 +1,5 @@
+package QuizWeek1;
+
 import static org.junit.Assert.*;
 import org.junit.After;
 import org.junit.Before;

package.bluej

@@ -1,32 +1,21 @@
 #BlueJ package file
-dependency1.from=StringUtilitiesTest
-dependency1.to=StringUtilities
+dependency1.from=MathUtilitiesTest
+dependency1.to=MathUtilities
 dependency1.type=UsesDependency
-dependency2.from=BonusTest
-dependency2.to=Bonus
-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.height=152
 objectbench.width=669
 package.divider.horizontal=0.6
-package.divider.vertical=0.7628294036061026
-package.editor.height=543
+package.divider.vertical=0.7630402384500745
+package.editor.height=505
 package.editor.width=567
-package.editor.x=557
-package.editor.y=43
-package.frame.height=779
+package.editor.x=545
+package.editor.y=110
+package.frame.height=729
 package.frame.width=693
-package.numDependencies=3
+package.numDependencies=1
 package.numTargets=6
 package.showExtends=true
 package.showUses=true
-project.charset=UTF-8
 readme.height=58
 readme.name=@README
 readme.width=47
@@ -40,20 +29,19 @@ 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.x=120
-target2.y=270
-target3.association=BonusTest
+target2.width=110
+target2.x=10
+target2.y=240
 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=120
+target3.y=290
 target4.association=MathUtilitiesTest
 target4.height=50
 target4.name=MathUtilities