diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
index 1402353..a834883 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java
@@ -2,18 +2,18 @@
 
 public class BasicUtilities {
     public Boolean isGreaterThan5(Integer value) {
-        return null;
+        return value >= 5;
     }
 
     public Boolean isLessThan7(Integer value) {
-        return null;
+        return value <= 7;
     }
 
     public Boolean isBetween5And7(Integer valueToEvaluate) {
-        return null;
+        return valueToEvaluate >= 5 && valueToEvaluate <=7;
     }
 
     public Boolean startsWith(String string, Character character) {
-        return null;
+        return string.toLowerCase().toCharArray()[0]==character.toString().toLowerCase().toCharArray()[0];
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
index a360000..e8ba9fa 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java
@@ -1,19 +1,29 @@
 package com.zipcodewilmington.assessment2.part1;
 
+import java.util.Arrays;
+
 public class IntegerArrayUtilities {
     public Boolean hasEvenLength(Integer[] array) {
-        return null;
+        return array.length%2==0;
     }
 
     public Integer[] range(int start, int stop) {
-        return null;
+        Integer[] rangeArray = new Integer[stop - start + 1];
+        int counter = 0;
+        for (int i = start; i<=stop; i++){
+            rangeArray[counter] = i;
+            counter++;
+            }
+
+
+        return rangeArray;
     }
 
     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..de90486 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java
@@ -1,18 +1,20 @@
 package com.zipcodewilmington.assessment2.part1;
 
 public class WuTangConcatenator {
+    Integer dividend;
     public WuTangConcatenator(Integer input) {
+        this.dividend = input;
     }
 
     public Boolean isWu() {
-        return null;
+        return dividend %3 == 0;
     }
 
     public Boolean isTang() {
-        return null;
+        return dividend % 5 ==0;
     }
 
     public Boolean isWuTang() {
-        return null;
+        return dividend % 15 == 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..f499706 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java
@@ -2,18 +2,68 @@
 
 public class ArrayUtility {
     public Integer[] merge(Integer[] array1, Integer[] array2) {
-        return null;
+        Integer[] merged = new Integer[array1.length + array2.length];
+        int counter = 0;
+        for (int j = 0;j<array1.length;j++){
+            merged[counter]=array1[j];
+            counter++;
+        }
+        counter=0;
+        for (int i = array1.length;i<merged.length;i++){
+            merged[i] = array2[counter];
+            counter++;
+        }
+        return merged;
     }
 
     public Integer[] rotate(Integer[] array, Integer index) {
-        return null;
+        Integer[] holdArray = new Integer[array.length];
+        int firstValue;
+        for (int i = 0; i < index; i++) {
+            firstValue = array[0];
+            for (int j = 0; j < array.length; j++) {
+                if (j < array.length - 1) {
+                    array[j] = array[j + 1];
+                } else {
+                    array[j] = firstValue;
+                }
+            }
+        }
+        return array;
     }
 
     public Integer countOccurrence(Integer[] array1, Integer[] array2, Integer valueToEvaluate) {
-        return null;
+        int counter = 0;
+        for (Integer num : array1){
+            if (num == valueToEvaluate){
+                counter++;
+            }
+        }
+        for (Integer num : array2){
+            if (num == valueToEvaluate) {
+
+                counter++;
+            }
+        }
+        return counter;
     }
 
     public Integer mostCommon(Integer[] array) {
-        return null;
+        Integer result=0;
+        int counter = 0;
+        int prevCounter = 0;
+        for(Integer num : array){
+            prevCounter = counter;
+            counter = 0;
+            for (Integer currentNum :array){
+                if (currentNum == num){
+                    counter++;
+                }
+                if (counter > prevCounter){
+                    result = num;
+                }
+            }
+        }
+        return result;
     }
 }
diff --git a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
index e978685..729db83 100644
--- a/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
+++ b/src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java
@@ -1,29 +1,72 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.lang.reflect.Array;
+import java.util.ArrayList;
 import java.util.List;
 
 public class ListUtility {
+    ArrayList<Integer> theList = new ArrayList<Integer>();
+
+    public ListUtility(){
+        this.theList = new ArrayList<Integer>();
+    }
     public Boolean add(int i) {
-        return null;
+        this.theList.ensureCapacity(theList.size()+1);
+        if (theList.size()>0) {
+            theList.add(theList.size() - 1, i);
+        } else {
+            theList.add(0,i);
+        }
+        return theList.contains(i);
     }
 
     public Integer size() {
-        return null;
+        return this.size();
     }
 
     public List<Integer> getUnique() {
-        return null;
+        ArrayList<Integer> resultList = new ArrayList<>();
+        for(Integer num : this.theList){
+           if (!resultList.contains(num))
+           {resultList.add(num);}
+        }
+        return resultList;
     }
 
     public String join() {
-        return null;
+        String result = "";
+        result += theList.get(0);
+        for (int i = 1; i < theList.size();i++){
+            result += ", " + theList.get(i);
+        }
+        return result;
     }
 
     public Integer mostCommon() {
-        return null;
+        Integer result=0;
+        int counter = 0;
+        int prevCounter = 0;
+        for(Integer num : theList){
+            prevCounter = counter;
+            counter = 0;
+            for (Integer currentNum :theList){
+                if (currentNum == num){
+                    counter++;
+                }
+                if (counter > prevCounter){
+                    result = num;
+                }
+            }
+        }
+        return result;
     }
 
     public Boolean contains(Integer valueToAdd) {
-        return null;
+        for (int i = 0;i<theList.size();i++){
+            if (theList.get(i) == valueToAdd){
+                return true;
+            }
+        }
+        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..25fbc32 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.HashMap;
+
 public class Router {
+    HashMap<String, String> theMap;
+
+    public Router(){
+        this.theMap = new HashMap<String,String>();
+    }
     public void add(String path, String controller) {
+        this.theMap.put(path,controller);
     }
 
     public Integer size() {
-        return null;
+        return theMap.size();
     }
 
     public String getController(String path) {
-        return null;
+        return theMap.get(path);
     }
 
     public void update(String path, String studentController) {
+        theMap.put(path,studentController);
     }
 
     public void remove(String path) {
+        theMap.remove(path);
     }
 }