array utility done but filter tests arent annotated?

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

@@ -1,5 +1,6 @@
 package rocks.zipcode.io.quiz3.generics;
 
+import java.util.Arrays;
 import java.util.function.Function;
 
 /**
@@ -13,18 +14,55 @@ public class ArrayUtility<SomeType> {
     }
 
     public SomeType findOddOccurringValue() {
+        Integer[] count = countOccurences();
+
+        for (int i = 0; i < count.length; i++) {
+            if (count[i] % 2 != 0) {
+                return array[i];
+            }
+        }
         return null;
     }
 
     public SomeType findEvenOccurringValue() {
+        Integer[] count = countOccurences();
+
+        for (int i = 0; i < count.length; i++) {
+            if (count[i] % 2 == 0) {
+                return array[i];
+            }
+        }
         return null;
     }
 
     public Integer getNumberOfOccurrences(SomeType valueToEvaluate) {
+        Integer[] count = countOccurences();
+
+        for (int i = 0; i < array.length; i++) {
+            if (array[i].equals(valueToEvaluate)) {
+                return count[i];
+            }
+        }
         return null;
     }
 
     public SomeType[] filter(Function<SomeType, Boolean> predicate) {
         return null;
     }
+
+    public Integer[] countOccurences() {
+        Integer[] count = new Integer[array.length];
+        Arrays.fill(count, 0);
+
+        for (int i = 0; i < array.length; i++) {
+            for (int j = 0; j < array.length; j++) {
+                if (array[i].equals(array[j])) {
+                    count[i]++;
+                }
+            }
+        }
+
+        return count;
+    }
+
 }