working on generics

src/main/java/rocks/zipcode/io/quiz3/generics/ArrayUtility.java

@@ -1,5 +1,6 @@
 package rocks.zipcode.io.quiz3.generics;
 
+import java.util.Collections;
 import java.util.function.Function;
 
 /**
@@ -8,23 +9,40 @@ import java.util.function.Function;
 public class ArrayUtility<SomeType> {
     private final SomeType[] array;
 
-    public ArrayUtility(SomeType[] array) {
+    public ArrayUtility(SomeType[] array)
+    {
         this.array = array;
     }
 
     public SomeType findOddOccurringValue()
+
     {
-     return null;
+        Integer i;
+        Integer result = 0;
+        for (i = 0; i < array.length; i++)
+        {
+            result = result ^ (Integer)array[i];
+        }
+        return (SomeType) result;
     }
 
 
-    public SomeType findEvenOccurringValue() {
+    public SomeType findEvenOccurringValue()
+    {
         return null;
     }
 
-    public Integer getNumberOfOccurrences(SomeType valueToEvaluate) {
-
-        return null;
+    public Integer getNumberOfOccurrences(SomeType valueToEvaluate)
+    {
+        Integer count=0;
+        for (int i=0;i<this.array.length;i++)
+        {
+         if(valueToEvaluate.equals(array[i]))
+         {
+             count++;
+         }
+        }
+        return count;
     }
 
     public SomeType[] filter(Function<SomeType, Boolean> predicate) {

src/test/java/rocks/zipcode/io/quiz3/generics/arrayutility/string/StringFilterTest.java

@@ -30,7 +30,7 @@ public class StringFilterTest {
         ArrayUtility<String> utility = new ArrayUtility<>(input);
 
         // when
-        String[] actual = utility.filter(string -> string.length() < 3);
+        String[] actual = utility.filter(string -> string.length() <= 3);
 
         // then
         TestUtils.assertArrayEquals(expected, actual);