Couldn't figure out Router().toString

src/main/java/com/zipcodewilmington/assessment2/part1/BasicUtilities.java

@@ -1,19 +1,23 @@
 package com.zipcodewilmington.assessment2.part1;
 
+import sun.tools.jstat.Scale;
+
 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 (isGreaterThan5(valueToEvaluate) && isLessThan7(valueToEvaluate));
     }
 
     public Boolean startsWith(String string, Character character) {
-        return null;
+        String firstLetter = string.substring(0, 1);
+        String characterAsString = character.toString();
+        return firstLetter.equalsIgnoreCase(characterAsString);
     }
 }

src/main/java/com/zipcodewilmington/assessment2/part1/IntegerArrayUtilities.java

@@ -2,18 +2,26 @@
 
 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 arrayLength = Math.abs(start - stop);
+        Integer[] result = new Integer[arrayLength + 1];
+
+        for(int i = 0; i <= arrayLength; i++)
+        {
+            result[i] = start + i;
+        }
+
+        return result;
     }
 
     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]);
     }
 }

src/main/java/com/zipcodewilmington/assessment2/part1/WuTangConcatenator.java

@@ -1,18 +1,22 @@
 package com.zipcodewilmington.assessment2.part1;
 
 public class WuTangConcatenator {
-    public WuTangConcatenator(Integer input) {
+    int input;
+
+    public WuTangConcatenator(Integer input)
+    {
+        this.input = input;
     }
 
     public Boolean isWu() {
-        return null;
+        return (input % 3 == 0);
     }
 
     public Boolean isTang() {
-        return null;
+        return (input % 5 == 0);
     }
 
     public Boolean isWuTang() {
-        return null;
+        return (input % 15 == 0);
     }
 }

src/main/java/com/zipcodewilmington/assessment2/part2/ArrayUtility.java

@@ -1,19 +1,80 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.util.HashMap;
+
 public class ArrayUtility {
-    public Integer[] merge(Integer[] array1, Integer[] array2) {
-        return null;
+    public Integer[] merge(Integer[] array1, Integer[] array2)
+    {
+        Integer[] output = new Integer[array1.length + array2.length];
+
+        for(Integer i = 0; i < array1.length; i++)
+        {
+            output[i] = array1[i];
+        }
+        for(Integer i = 0; i < array2.length; i++)
+        {
+            output[array1.length + i] = array2[i];
+        }
+
+        return output;
     }
 
     public Integer[] rotate(Integer[] array, Integer index) {
-        return null;
+        Integer[] result = new Integer[array.length];
+
+        for(Integer i = 0; i < array.length; i++)
+        {
+            result[i] = array[(index + i) % array.length];
+        }
+
+
+
+        return result;
     }
 
-    public Integer countOccurrence(Integer[] array1, Integer[] array2, Integer valueToEvaluate) {
-        return null;
+    public Integer countOccurrence(Integer[] array1, Integer[] array2, Integer valueToEvaluate)
+    {
+        Integer occurrences = 0;
+
+        for(Integer i = 0; i < array1.length; i++)
+        {
+            if(array1[i] == valueToEvaluate)
+            {
+                occurrences++;
+            }
+        }
+        for(Integer i = 0; i < array2.length; i++)
+        {
+            if(array2[i] == valueToEvaluate)
+            {
+                occurrences++;
+            }
+        }
+
+        return occurrences;
     }
 
-    public Integer mostCommon(Integer[] array) {
-        return null;
+    public Integer mostCommon(Integer[] array)
+    {
+        Integer currentMostCommon = array[0];
+        Integer currentMaxCount = 0;
+        for(Integer i = 0; i < array.length; i++)
+        {
+            Integer appearances = 0;
+            for(Integer k = 0; k < array.length; k++)
+            {
+                if(array[i] == array[k])
+                {
+                    appearances++;
+                }
+            }
+            if(appearances > currentMaxCount)
+            {
+                currentMaxCount = appearances;
+                currentMostCommon = array[i];
+            }
+        }
+
+        return currentMostCommon;
     }
-}
+}

src/main/java/com/zipcodewilmington/assessment2/part2/ListUtility.java

@@ -1,29 +1,61 @@
 package com.zipcodewilmington.assessment2.part2;
 
-import java.util.List;
+import java.util.*;
 
-public class ListUtility {
-    public Boolean add(int i) {
-        return null;
+public class ListUtility
+{
+    List<Integer> iList;
+
+    public ListUtility()
+    {
+        iList = new ArrayList<>();
+    }
+
+    public Boolean add(Integer i) {
+        return iList.add(i);
     }
 
     public Integer size() {
-        return null;
+        return iList.size();
     }
 
     public List<Integer> getUnique() {
-        return null;
+        Set<Integer> uniques = new HashSet<>(iList);
+
+        List<Integer> uniquesAsList = new ArrayList<>(uniques);
+        return uniquesAsList;
     }
 
     public String join() {
-        return null;
+        StringBuilder joinedWithCommas = new StringBuilder();
+
+        for(Integer element : iList)
+        {
+            joinedWithCommas.append(element).append(", ");
+        }
+
+        return (joinedWithCommas.substring(0, joinedWithCommas.length() - 2));
     }
 
     public Integer mostCommon() {
-        return null;
+        Map<Integer, Integer> map = new HashMap<>();
+
+        for (Integer element : iList) {
+            Integer val = map.get(element);
+            map.put(element, val == null ? 1 : val + 1);
+        }
+
+        Map.Entry<Integer, Integer> max = null;
+
+        for (Map.Entry<Integer, Integer> e : map.entrySet()) {
+            if (max == null || e.getValue() > max.getValue())
+                max = e;
+        }
+
+        return max.getKey();
     }
 
     public Boolean contains(Integer valueToAdd) {
-        return null;
+        return iList.contains(valueToAdd);
     }
 }

src/main/java/com/zipcodewilmington/assessment2/part2/Router.java

@@ -1,20 +1,51 @@
 package com.zipcodewilmington.assessment2.part2;
 
+import java.util.HashMap;
+import java.util.Map;
+
 public class Router {
-    public void add(String path, String controller) {
+    Map<String, String> routing;
+
+    public Router()
+    {
+        routing = new HashMap<>();
+    }
+
+    public void add(String path, String controller)
+    {
+            routing.put(path, controller);
     }
 
-    public Integer size() {
-        return null;
+    public Integer size()
+    {
+        return routing.size();
     }
 
     public String getController(String path) {
-        return null;
+        return routing.get(path);
     }
 
-    public void update(String path, String studentController) {
+    public void update(String path, String studentController)
+    {
+        routing.replace(path, studentController);
     }
 
-    public void remove(String path) {
+    public void remove(String path)
+    {
+        routing.remove(path);
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder output = new StringBuilder();
+        for (Map.Entry<String, String> pair : routing.entrySet()) {
+            String path = pair.getKey();
+            String controller = pair.getValue();
+
+            output.append(path).append(controller).append('\n');
+        }
+
+        return output.toString();
     }
 }

src/main/java/com/zipcodewilmington/assessment2/part3/Bird.java

@@ -1,11 +1,19 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class Bird {
-    public String move() {
-        return null;
+public abstract class Bird implements Animal {
+    public String move()
+    {
+        return "fly";
     }
 
-    public void setMigrationMonth(String expected) {
+    @Override
+    abstract public int getSpeed();
+
+    @Override
+    abstract public String color();
+
+    public void setMigrationMonth(String expected)
+    {
 
     }
 

src/main/java/com/zipcodewilmington/assessment2/part3/BlueJay.java

@@ -1,4 +1,14 @@
 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";
+    }
 }

src/main/java/com/zipcodewilmington/assessment2/part3/Horse.java

@@ -1,4 +1,19 @@
 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";
+    }
 }

src/main/java/com/zipcodewilmington/assessment2/part3/RedRobin.java

@@ -1,4 +1,25 @@
 package com.zipcodewilmington.assessment2.part3;
 
-public class RedRobin {
+public class RedRobin extends Bird {
+    String migrationMonth;
+
+    public void setMigrationMonth(String updatedMonth)
+    {
+        migrationMonth = updatedMonth;
+    }
+
+    public String getMigrationMonth()
+    {
+        return migrationMonth;
+    }
+
+    @Override
+    public int getSpeed() {
+        return 10;
+    }
+
+    @Override
+    public String color() {
+        return "red";
+    }
 }