GenericArrayUtility Lab Complete

src/main/java/com/zipcodewilmington/arrayutility/ArrayUtility.java

@@ -1,7 +1,60 @@
 package com.zipcodewilmington.arrayutility;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+
 /**
  * Created by leon on 3/6/18.
  */
-public class ArrayUtility {
+public class ArrayUtility<T> {
+
+    T[] inputArray;
+
+    public ArrayUtility(T[] inputArray) {
+        this.inputArray = inputArray;
+    }
+
+    public Integer countDuplicatesInMerge(T[] arrayToMerge, T valueToEvaluate) {
+        ArrayList<T> input = new ArrayList<>(Arrays.asList(inputArray));
+        ArrayList<T> merge = new ArrayList<>(Arrays.asList(arrayToMerge));
+
+        input.addAll(merge);
+        return Collections.frequency(input, valueToEvaluate);
+    }
+
+    public T getMostCommonFromMerge(T[] arrayToMerge) {
+        ArrayList<T> input = new ArrayList<>(Arrays.asList(inputArray));
+        ArrayList<T> merge = new ArrayList<>(Arrays.asList(arrayToMerge));
+        T mostCommon = null;
+
+        input.addAll(merge);
+        Integer highestCount = 0;
+
+        for(T element : input) {
+            Integer tempCount = Collections.frequency(input, element);
+            if(tempCount > highestCount) {
+                highestCount = tempCount;
+                mostCommon = element;
+            }
+        }
+        return mostCommon;
+    }
+
+    public Integer getNumberOfOccurrences(T valueToEvaluate) {
+        ArrayList<T> input = new ArrayList<>(Arrays.asList(inputArray));
+        return Collections.frequency(input, valueToEvaluate);
+    }
+
+    public Object[] removeValue(T valueToRemove) {
+        ArrayList<T> input = new ArrayList<>(Arrays.asList(inputArray));
+        ArrayList<T> newList = new ArrayList<>();
+
+        for(T element : input) {
+            if(!element.equals(valueToRemove)) {
+                newList.add(element);
+            }
+        }
+        return newList.toArray(new Object[0]);
+    }
 }

src/test/java/com/zipcodewilmington/arrayutility/RemoveValueTest.java

@@ -1,6 +1,6 @@
 package com.zipcodewilmington.arrayutility;
 
-import com.zipcodewilmington.UnitTestingUtils;
+import com.zipcodewilmington.arrayutility.UnitTestingUtils;
 import org.junit.Test;
 
 /**
@@ -14,11 +14,11 @@ public void integerTest() {
         Integer valueToRemove = 7;
         Integer[] expected = {11, 2, 8, 4, 5, 0, 9, 8};
         Integer[] inputArray = {11, 2, valueToRemove, 8, 4, 5, valueToRemove, 0, 9, 8, valueToRemove};
-        ArrayUtility<Integer> arrayUtility = new ArrayUtility<Integer>(inputArray);
+        ArrayUtility<Integer> arrayUtility = new ArrayUtility<>(inputArray);
 
 
         // When
-        Integer[] actual = arrayUtility.removeValue(valueToRemove);
+        Object[] actual = arrayUtility.removeValue(valueToRemove);
 
         // Then
         UnitTestingUtils.assertArrayEquality(expected, actual);
@@ -34,7 +34,7 @@ public void longTest() {
 
 
         // When
-        Long[] actual = arrayUtility.removeValue(valueToRemove);
+        Object[] actual = arrayUtility.removeValue(valueToRemove);
 
         // Then
         UnitTestingUtils.assertArrayEquality(expected, actual);
@@ -51,7 +51,7 @@ public void stringTest() {
 
 
         // When
-        String[] actual = arrayUtility.removeValue(valueToRemove);
+        Object[] actual = arrayUtility.removeValue(valueToRemove);
 
         // Then
         UnitTestingUtils.assertArrayEquality(expected, actual);