Vincent Sima 6 years ago
parent
commit
8744c5af26

+ 79
- 1
src/main/java/com/zipcodewilmington/arrayutility/ArrayUtility.java View File

@@ -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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 }

+ 0
- 1
src/test/java/com/zipcodewilmington/arrayutility/GetNumberOfOccurrencesTest.java View File

@@ -33,7 +33,6 @@ public class GetNumberOfOccurrencesTest {
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         // When
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         Integer actual = arrayUtility.getNumberOfOccurrences(valueToEvaluate);
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-
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         // Then
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         Assert.assertEquals(expected, actual);
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     }

+ 1
- 1
src/test/java/com/zipcodewilmington/arrayutility/RemoveValueTest.java View File

@@ -1,6 +1,6 @@
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 package com.zipcodewilmington.arrayutility;
2 2
 
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-import com.zipcodewilmington.UnitTestingUtils;
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+//import com.zipcodewilmington.UnitTestingUtils;
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 import org.junit.Test;
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 /**