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@@ -1,7 +1,84 @@
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package com.zipcodewilmington.arrayutility;
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+import com.sun.tools.classfile.Instruction;
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+
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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.HashMap;
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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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+ public ArrayUtility(T[] inputArray) {
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+ this.inputArray = inputArray;
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+ }
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+ T[] inputArray;
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+
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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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+ ArrayUtility au = new ArrayUtility(merge(arrayToMerge));
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+
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+
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+
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+
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+ return au.getNumberOfOccurrences(valueToEvaluate);
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+ }
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+
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+ public Object[] merge(T[] arrayToMerge){
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+ Object[] mergedArray = new Object [arrayToMerge.length + inputArray.length];
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+ System.arraycopy(inputArray, 0, mergedArray, 0, inputArray.length );
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+ System.arraycopy(arrayToMerge, 0, mergedArray, inputArray.length, arrayToMerge.length );
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+
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+ return mergedArray;
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+ }
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+
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+ public T[] removeValue(T valueToRemove) {
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+ ArrayList<T> Jae = new ArrayList<>();
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+
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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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+ Jae.add(inputArray[i]);
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+ }
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+ }
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+
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+ int length = Jae.size();
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+ inputArray = (T[]) Array.newInstance(inputArray.getClass().getComponentType(), length);
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+
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+ return Jae.toArray(inputArray);
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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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+
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+ for (int i = 0; i < inputArray.length; i++){
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+ if (inputArray[i].equals(valueToEvaluate)){
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+ count++;
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+ }
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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 getMostCommonFromMerge(T[] arrayToMerge) {
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+
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+ ArrayUtility au = new ArrayUtility(merge(arrayToMerge));
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+ Object[] merged = merge(arrayToMerge);
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+// HashMap<T, Integer> map = new HashMap<>();
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+ int count = 0;
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+ T popular = null;
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+
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+ for (Object o : merged){
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+ if (getNumberOfOccurrences((T)o) > count){
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+ count = getNumberOfOccurrences((T)o);
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+ popular = (T) o;
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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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}
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