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@@ -1,7 +1,85 @@
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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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+
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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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+ private T[] inputArray;
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+
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+
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+ public ArrayUtility(T[] inputArray) {
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+ this.inputArray = inputArray;
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+ }
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+
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+ public T[] merge(T[] input) {
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+ T[] combined = (T[]) new Object[inputArray.length + input.length];
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+ System.arraycopy(inputArray, 0, combined, 0, inputArray.length);
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+ System.arraycopy(input, 0, combined, inputArray.length, input.length);
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+ return combined;
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+ }
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+
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+ public Integer countDuplicatesInMerge(T[] arrayToMerge, T valueToEvaluate) {
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+
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+ T[] combined = merge(arrayToMerge);
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+
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+
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+ int count = 0;
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+ for (T e : combined) {
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+ if (e == 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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+ public T getMostCommonFromMerge(T[] arrayToMerge) {
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+ T[] combined = merge(arrayToMerge);
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+ int count = 1, tempCount;
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+ T popular = combined[0];
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+ T temp;
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+ for (int i = 0; i < (combined.length - 1); i++)
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+ {
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+ temp = combined[i];
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+ tempCount = 0;
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+ for (int j = 1; j < combined.length; j++)
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+ {
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+ if (temp == combined[j])
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+ tempCount++;
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+ }
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+ if (tempCount > count)
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+ {
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+ popular = temp;
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+ count = tempCount;
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+ }
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+ }
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+ return popular;
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+ }
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+
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+ public Integer getNumberOfOccurrences(T valueToEvaluate) {
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+ Integer count = 0;
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+ for(T e : inputArray){
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+ if(e == 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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+ public T[] removeValue(T valueToRemove) {
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+ int occ = getNumberOfOccurrences(valueToRemove);
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+ T[] answer = (T[]) Array.newInstance(inputArray.getClass().getComponentType(), inputArray.length-occ);
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+ int count=0;
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+ for(int i = 0; i < inputArray.length; i++){
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+ if(!inputArray[i].equals(valueToRemove)){
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+ answer[count] = inputArray[i];
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+ count++;
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+ }
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+ }
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+ return answer;
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+ }
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}
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