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@@ -1,7 +1,88 @@
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package com.zipcodewilmington.arrayutility;
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+import java.lang.reflect.Array;
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+import java.util.ArrayList;
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+import java.util.Arrays;
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+import java.util.List;
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+import java.util.function.Consumer;
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+
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/**
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* Created by leon on 3/6/18.
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*/
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-public class ArrayUtility {
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+public class ArrayUtility<T> {
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+
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+ private T[] array;
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+
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+ public ArrayUtility(T[] list) {
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+ this.array = list;
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+ }
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+
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+ public T[] removeValue(T valueToRemove){
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+ List<T> list = new ArrayList<T>(Arrays.asList(array));
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+ List<T> newList = new ArrayList<>();
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+ // this is lamda -----
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+// Consumer<T> consumer = (n) -> {
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+// if(n != valueToRemove) {
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+// newList.add(n);
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+// }
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+// };
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+// list.forEach(consumer);
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+ for(T element: list) {
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+ if(!element.equals(valueToRemove)) {
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+ newList.add(element);
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+ }
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+ }
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+ T[] objs = (T[])Array.newInstance(this.array.getClass().getComponentType(), newList.size());
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+ return (T[]) newList.toArray(objs);
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+
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+ }
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+
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+
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+
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+ public int countDuplicatesInMerge(T[] arrayToMerge, T valueToEvaluate) {
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+ ArrayUtility arrayUtility = new ArrayUtility(merge(arrayToMerge));
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+ return arrayUtility.getNumberOfOccurrences(valueToEvaluate);
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+ }
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+
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+ public Object[] merge(T[] arr2){
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+ Object [] mergeArr = new Object[array.length + arr2.length];
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+ int counter = 0;
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+ for(T el : array) {
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+ mergeArr[counter] = el;
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+ counter++;
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+ }
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+ for(T el : arr2) {
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+ mergeArr[counter] = el;
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+ counter++;
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+ }
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+ return mergeArr;
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+ }
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+
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+ public int getNumberOfOccurrences(T valueToEvaluate) {
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+ int count = 0;
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+ for(T el : array) {
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+ if(el.equals(valueToEvaluate)) {
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+ count++;
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+ }
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+ }
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+ return count;
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+ }
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+
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+
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+
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+ public T getMostCommonFromMerge(T[] arrayToMerge){
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+ ArrayUtility arrayUtility = new ArrayUtility(merge(arrayToMerge));
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+ int tempCount = 0;
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+ T mostCommonEl = null;
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+ for(Object el : arrayUtility.array) {
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+ if(getNumberOfOccurrences((T)el) > tempCount) {
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+ tempCount = getNumberOfOccurrences((T)el);
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+ mostCommonEl = (T)el;
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+ }
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+ }
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+ return mostCommonEl;
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+ }
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+
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+
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+
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}
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