diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
index 1402353..a838687 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
@@ -2,18 +2,32 @@
 
 public class BasicUtilities {
     public Boolean isGreaterThan5(Integer value) {
-        return null;
+        if (value >= 5) {
+            return true;
+        }
+        else
+            return false;
     }
 
     public Boolean isLessThan7(Integer value) {
-        return null;
+        if (value <= 7) {
+            return true;
+        } else
+        return false;
     }
 
     public Boolean isBetween5And7(Integer valueToEvaluate) {
-        return null;
+        if (valueToEvaluate >= 5 && valueToEvaluate <= 7) {
+            return true;
+        } else
+            return false;
     }
 
     public Boolean startsWith(String string, Character character) {
-        return null;
+        char[] newArray = string.toLowerCase().toCharArray();
+        if (newArray[0] == Character.toLowerCase(character)) {
+            return true;
+        } else
+            return false;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
index a360000..a5bc036 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
@@ -2,18 +2,27 @@
 
 public class IntegerArrayUtilities {
     public Boolean hasEvenLength(Integer[] array) {
-        return null;
+        if (array.length % 2 == 0) {
+            return true;
+        }
+        return false;
     }
 
     public Integer[] range(int start, int stop) {
-        return null;
+        Integer[] arrayToReturn = new Integer[stop - start + 1];
+        int index = 0;
+        for (int i = start; i <= stop; i++) {
+            arrayToReturn[index] = i;
+            index++;
+        }
+        return arrayToReturn;
     }
 
     public Integer getSumOfFirstTwo(Integer[] array) {
-        return null;
+        return array[0] + array[1];
     }
 
     public Integer getProductOfFirstTwo(Integer[] array) {
-        return null;
+        return array[array.length - 1] * array[array.length - 2];
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
index 63f210e..ea53dc0 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
@@ -1,18 +1,22 @@
 package com.zipcodewilmington.assessment2.part1;
 
 public class WuTangConcatenator {
+
+    Integer a = 0;
+
     public WuTangConcatenator(Integer input) {
+        this.a = input;
     }
 
     public Boolean isWu() {
-        return null;
+        return a % 3 == 0;
     }
 
     public Boolean isTang() {
-        return null;
+        return a % 5 == 0;
     }
 
     public Boolean isWuTang() {
-        return null;
+        return a % 3 == 0 && a % 5 == 0;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
index de2f799..6041e12 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
@@ -2,10 +2,33 @@
 
 public class ArrayUtility {
     public Integer[] merge(Integer[] array1, Integer[] array2) {
-        return null;
+        Integer[] toReturn = new Integer[array1.length + array2.length];
+        int index = 0;
+        for (Integer integer : array1) {
+            toReturn[index] = integer;
+            index++;
+        }
+
+        for (Integer integer : array2) {
+            toReturn[index] = integer;
+            index++;
+        }
+        return toReturn;
     }
 
     public Integer[] rotate(Integer[] array, Integer index) {
+        /*Integer[] toReturn = new Integer[array.length];
+        Integer[] temp = new Integer[index];
+        int dex = 0;
+        for (int i = 0; i < temp.length; i++) {
+            temp[i] = array[i];
+        }
+
+        for (int i = 0; i < ; i++) {
+            
+        }
+
+        return merge(temp, array);*/
         return null;
     }
 
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
index e978685..8d21a9a 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
@@ -1,22 +1,43 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.util.ArrayList;
 import java.util.List;
 
 public class ListUtility {
+
+    List<Integer> list = new ArrayList<>();
+
     public Boolean add(int i) {
-        return null;
+        list.add(i);
+        if (list.contains(i)) {
+            return true;
+        } else
+            return false;
     }
 
     public Integer size() {
-        return null;
+        return list.size();
     }
 
     public List<Integer> getUnique() {
+/*        List<Integer> toReturn = new ArrayList<>();
+        Integer lastSeen = 0;
+        for (Integer element : list) {
+            lastSeen = element;
+            for (Integer index : list) {
+                if ()
+            }
+        }*/
         return null;
     }
 
     public String join() {
-        return null;
+        String toReturn = "";
+/*        for (int i = 0; i < list.size(); i++) {
+            toReturn += list.get(i);
+            if
+        }*/
+        return toReturn;
     }
 
     public Integer mostCommon() {
@@ -24,6 +45,9 @@ public Integer mostCommon() {
     }
 
     public Boolean contains(Integer valueToAdd) {
-        return null;
+        if (list.contains(valueToAdd)) {
+            return true;
+        } else
+        return false;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java b/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
index 2267425..c3b3f5b 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
@@ -1,20 +1,38 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 public class Router {
+
+    LinkedHashMap<String, String> routerPaths = new LinkedHashMap<>();
+
     public void add(String path, String controller) {
+        routerPaths.put(path, controller);
     }
 
     public Integer size() {
-        return null;
+        return routerPaths.size();
     }
 
     public String getController(String path) {
-        return null;
+        return routerPaths.get(path);
     }
 
     public void update(String path, String studentController) {
+        routerPaths.put(path, studentController);
     }
 
     public void remove(String path) {
+        routerPaths.remove(path);
+    }
+
+    @Override
+    public String toString() {
+        String stringToReturn = "";
+        for (Map.Entry<String, String> element : routerPaths.entrySet()) {
+            stringToReturn += (element.getKey() + " -> " + element.getValue());
+        }
+        return stringToReturn;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java b/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
index ee230c5..de8f746 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
@@ -1,8 +1,8 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class Bird {
+public abstract class Bird implements Animal{
     public String move() {
-        return null;
+        return "fly";
     }
 
     public void setMigrationMonth(String expected) {
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java b/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
index f18d13a..eb183a4 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
@@ -1,4 +1,13 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class BlueJay {
+public class BlueJay extends Bird{
+    @Override
+    public int getSpeed() {
+        return 13;
+    }
+
+    @Override
+    public String color() {
+        return "blue";
+    }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/Horse.java b/src/main/java/com/zipcodewilmington/assessment2/part3/Horse.java
index e78cf2b..e033c1c 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/Horse.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/Horse.java
@@ -1,4 +1,18 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class Horse{
+public class Horse implements Animal{
+    @Override
+    public String move() {
+        return "gallop";
+    }
+
+    @Override
+    public int getSpeed() {
+        return 40;
+    }
+
+    @Override
+    public String color() {
+        return "brown";
+    }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java b/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java
index c1e85f2..2ad3b0a 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java
@@ -1,4 +1,26 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class RedRobin {
+public class RedRobin extends Bird{
+
+    String migrationMonth;
+
+    @Override
+    public String getMigrationMonth() {
+        return migrationMonth;
+    }
+
+    @Override
+    public void setMigrationMonth(String migrationMonth) {
+        this.migrationMonth = migrationMonth;
+    }
+
+    @Override
+    public int getSpeed() {
+        return 10;
+    }
+
+    @Override
+    public String color() {
+        return "red";
+    }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java b/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
index 532e766..2647786 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
@@ -1,4 +1,16 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class SpeedComparator {
+import java.util.Comparator;
+
+public class SpeedComparator implements Comparator<Animal> {
+    @Override
+    public int compare(Animal animal1, Animal animal2) {
+        if (animal1.getSpeed() == animal2.getSpeed()) {
+            return 0;
+        } else if (animal1.getSpeed() > animal2.getSpeed()) {
+            return -1;
+        } else {
+            return 1;
+        }
+    }
 }