generics done

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

@@ -1,7 +1,78 @@
 package com.zipcodewilmington.arrayutility;
 
+import java.util.Arrays;
+
 /**
  * Created by leon on 3/6/18.
  */
-public class ArrayUtility {
-}
+
+
+    public class ArrayUtility<T> {
+
+        private T[] inputArray;
+
+        public ArrayUtility(T[] inputArray){
+            this.inputArray = inputArray;
+        }
+
+        public T[] mergeArrays(T[] inputArray, T[] arrayToMerge){
+            T[] merged = Arrays.copyOf(inputArray, inputArray.length + arrayToMerge.length);
+            System.arraycopy(arrayToMerge, 0, merged, inputArray.length, arrayToMerge.length);
+            return merged;
+        }
+
+        public Integer getNumberOfOccurrences(T valueToEvaluate) {
+            Integer count = 0;
+            for (int i = 0; i < inputArray.length; i++) {
+                if (inputArray[i].equals(valueToEvaluate)) {
+                    count++;
+                }
+            }
+            return count;
+        }
+
+
+        public T getMostCommonFromMerge (T[]arrayToMerge){
+            T[] mergedArray = mergeArrays(inputArray, arrayToMerge);
+
+            Integer count = 0;
+            T obj = null;
+            for (int i = 0; i < mergedArray.length; i++) {
+                Integer n = getNumberOfOccurrences(mergedArray[i]);
+                if (n > count) {
+                    count = n;
+                    obj = mergedArray[i];
+                }
+            }
+            return obj;
+        }
+
+        public Integer countDuplicatesInMerge(T[] arrayToMerge, T valueToEvaluate) {
+        T[] mergedArray = mergeArrays(inputArray, (T[]) arrayToMerge);
+        Integer count = 0;
+        for (int i = 0; i < mergedArray.length; i++) {
+            if (mergedArray[i].equals(valueToEvaluate)) {
+                count++;
+            }
+        }
+        return count;
+
+    }
+
+        public T[] removeValue(T valueToRemove) {
+
+            T[] arrayWithOutRemovedValue;
+            arrayWithOutRemovedValue = Arrays.copyOf(inputArray, (inputArray.length - getNumberOfOccurrences(valueToRemove)));
+            int idx = 0;
+            for (int i = 0; i < inputArray.length; i++) {
+                if (!inputArray[i].equals(valueToRemove)) {
+                    arrayWithOutRemovedValue[idx] = inputArray[i];
+                    idx++;
+                }
+            }
+            return arrayWithOutRemovedValue;
+        }
+
+
+    }
+

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

@@ -1,7 +1,8 @@
 package com.zipcodewilmington.arrayutility;
 
-import com.zipcodewilmington.UnitTestingUtils;
+//import com.zipcodewilmington.UnitTestingUtils;
 import org.junit.Test;
+import org.junit.Assert;
 
 /**
  * Created by leon on 3/1/18.