diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
index 1402353..c1f972e 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;
+        }
+        return false;
     }
 
     public Boolean isLessThan7(Integer value) {
-        return null;
+        if (value <= 7){
+            return true;
+        }
+        return false;
     }
 
     public Boolean isBetween5And7(Integer valueToEvaluate) {
-        return null;
+        if (valueToEvaluate >= 5 && valueToEvaluate <= 7){
+            return true;
+        }
+        return false;
     }
 
     public Boolean startsWith(String string, Character character) {
-        return null;
+        String stringToCheckUpper = string.toUpperCase();
+        String stringToCheckLower = string.toLowerCase();
+        if (stringToCheckLower.charAt(0) == character || stringToCheckUpper.charAt(0) == character){
+            return true;
+        }
+        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..bbceb26 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
@@ -1,19 +1,34 @@
 package com.zipcodewilmington.assessment2.part1;
 
+import com.j256.ormlite.stmt.query.In;
+
 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;
+
+        int[] nums = java.util.stream.IntStream.rangeClosed(start, stop).toArray();
+
+        Integer[] newArray = new Integer[nums.length];
+
+        for (int i = 0; i < nums.length; i++){
+            newArray[i] = Integer.valueOf(nums[i]);
+        }
+
+        return newArray;
     }
 
     public Integer getSumOfFirstTwo(Integer[] array) {
-        return null;
+
+        return array[0].intValue() + array[1].intValue();
     }
 
     public Integer getProductOfFirstTwo(Integer[] array) {
-        return null;
+        return array[array.length - 2].intValue() * array[array.length - 1].intValue();
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
index 63f210e..4374647 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
@@ -1,18 +1,33 @@
 package com.zipcodewilmington.assessment2.part1;
 
 public class WuTangConcatenator {
+
+    private Integer input;
     public WuTangConcatenator(Integer input) {
+        this.input = input;
     }
 
     public Boolean isWu() {
-        return null;
+
+        if (input % 3 == 0){
+            return true;
+        }
+        return false;
     }
 
     public Boolean isTang() {
-        return null;
+
+        if (input % 5 == 0){
+            return true;
+        }
+        return false;
+
     }
 
     public Boolean isWuTang() {
-        return null;
+        if (isWu() == true && isTang() == true){
+            return true;
+        }
+        return false;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
index de2f799..653f039 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
@@ -1,19 +1,70 @@
 package com.zipcodewilmington.assessment2.part2;
 
+//import com.sun.tools.hat.internal.model.JavaObjectArray;
+//import com.sun.tools.javac.code.Attribute;
+//import com.sun.tools.javac.util.ArrayUtils;
+//import com.sun.tools.javac.util.List;
+
 public class ArrayUtility {
     public Integer[] merge(Integer[] array1, Integer[] array2) {
-        return null;
+        Integer[] merged = new Integer[array1.length + array2.length];
+
+        System.arraycopy(array1, 0, merged, 0, array1.length);
+        System.arraycopy(array2, 0, merged, array1.length, array2.length);
+        return merged;
     }
 
     public Integer[] rotate(Integer[] array, Integer index) {
-        return null;
+        Integer[] rotated = new Integer[array.length];
+        int count = 0;
+        for (int i = index; i < array.length; i++){
+            rotated[count] = array[i];
+            count++;
+        }
+
+        for (int i = 0; i < index; i++){
+            rotated[count] = array[i];
+            count++;
+        }
+
+        return rotated;
     }
 
     public Integer countOccurrence(Integer[] array1, Integer[] array2, Integer valueToEvaluate) {
-        return null;
+        Integer occur = 0;
+        for (int i = 0; i < array1.length; i++) {
+            if (array1[i] == valueToEvaluate) {
+                occur++;
+            }
+        }
+        for (int j = 0; j < array2.length; j++){
+
+            if (array2[j] == valueToEvaluate){
+                occur++;
+            }
+        }
+        return occur;
     }
 
     public Integer mostCommon(Integer[] array) {
-        return null;
+        int count = 1, tempCount;
+        Integer popular = array[0];
+        Integer temp = 0;
+        for (int i = 0; i < (array.length - 1); i++)
+        {
+            temp = array[i];
+            tempCount = 0;
+            for (int j = 1; j < array.length; j++)
+            {
+                if (temp == array[j])
+                    tempCount++;
+            }
+            if (tempCount > count)
+            {
+                popular = temp;
+                count = tempCount;
+            }
+        }
+        return popular;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
index e978685..ea0e595 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
@@ -1,29 +1,64 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import com.j256.ormlite.stmt.query.In;
+
+import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 public class ListUtility {
+    private List<Integer> list;
+
+    public ListUtility(){
+        list = new ArrayList<>();
+    }
     public Boolean add(int i) {
-        return null;
+        if (list.add(i)){
+            return true;
+        }
+        return false;
     }
 
     public Integer size() {
-        return null;
+        return list.size();
     }
 
     public List<Integer> getUnique() {
-        return null;
+//        List<Integer> unique = new ArrayList<>();
+////        for (Integer i: list){
+////            if (!unique.contains(i)){
+////                unique.add(i);
+////            }
+////        }
+////
+////        return list;
+        Set<Integer> s = new HashSet<>(list);
+        int n = s.size();
+        List<Integer> aList = new ArrayList<>(n);
+        aList.addAll(s);
+        return aList;
     }
 
     public String join() {
-        return null;
+        String blah = "";
+        for (Integer i: list){
+            if (list.size()==1){
+                return i.toString();
+            }
+            blah += i + ", ";
+        }
+        return blah.substring(0, blah.length() - 2);
     }
 
     public Integer mostCommon() {
-        return null;
+        ArrayUtility util = new ArrayUtility();
+        Integer[] result = new Integer[list.size()];
+        result = list.toArray(result);
+        return util.mostCommon(result);
     }
 
     public Boolean contains(Integer valueToAdd) {
-        return null;
+        return list.contains(valueToAdd);
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java b/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
index 2267425..c75c260 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/Router.java
@@ -1,20 +1,30 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.util.LinkedHashMap;
+
 public class Router {
+    private LinkedHashMap<String, String> linkMap;
+
+    public Router(){
+        linkMap = new LinkedHashMap<>();
+    }
     public void add(String path, String controller) {
+        linkMap.put(path, controller);
     }
 
     public Integer size() {
-        return null;
+        return linkMap.size();
     }
 
     public String getController(String path) {
-        return null;
+        return linkMap.get(path);
     }
 
     public void update(String path, String studentController) {
+        linkMap.put(path, studentController);
     }
 
     public void remove(String path) {
+        linkMap.remove(path);
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java b/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
index ee230c5..c3a47f6 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java
@@ -1,7 +1,17 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class Bird {
+public class Bird implements Animal{
     public String move() {
+        return "fly";
+    }
+
+    @Override
+    public int getSpeed() {
+        return 0;
+    }
+
+    @Override
+    public String color() {
         return null;
     }
 
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java b/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
index f18d13a..7ed3842 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java
@@ -1,4 +1,12 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class BlueJay {
+public class BlueJay extends Bird{
+
+    public String color() {
+        return "blue";
+    }
+
+    public int getSpeed() {
+        return 13;
+    }
 }
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..ffcb1a8 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java
@@ -1,4 +1,24 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class RedRobin {
+public class RedRobin extends Bird{
+
+    private String migrationMonth;
+
+    public String color() {
+        return "red";
+    }
+
+    public int getSpeed() {
+        return 10;
+    }
+
+    @Override
+    public String getMigrationMonth() {
+        return migrationMonth;
+    }
+
+    @Override
+    public void setMigrationMonth(String migrationMonth) {
+        this.migrationMonth = migrationMonth;
+    }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java b/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
index 532e766..ee6c4be 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part3/SpeedComparator.java
@@ -1,4 +1,20 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class SpeedComparator {
+import java.util.Comparator;
+
+public class SpeedComparator implements Comparator<Animal> {
+    @Override
+    public int compare(Animal o1, Animal o2) {
+
+//        if (o1.getSpeed() == o2.getSpeed()){
+//            return 0;
+//        }
+//        else if (o1.getSpeed() < o2.getSpeed()){
+//            return 1;
+//        }
+//        else {
+//            return 0;
+//        }
+        return o2.getSpeed() - o1.getSpeed();
+    }
 }