MyArrayList - Complete

MySet - Working
add, get, contains, remove

.idea/compiler.xml

@@ -10,7 +10,7 @@
       </profile>
     </annotationProcessing>
     <bytecodeTargetLevel>
-      <module name="generics" target="1.7" />
+      <module name="generics" target="1.8" />
     </bytecodeTargetLevel>
   </component>
 </project>

generics.iml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
     <output url="file://$MODULE_DIR$/target/classes" />
     <output-test url="file://$MODULE_DIR$/target/test-classes" />
     <content url="file://$MODULE_DIR$">

pom.xml

@@ -13,8 +13,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
         </plugins>

src/main/java/MySet.java

@@ -21,7 +21,13 @@ public class MySet<T> extends MyArrayList implements Set {
 
     @Override
     public int size() {
-        return 0;
+        int countSize = 0;
+
+        for (T elem: this.genericSet) {
+            countSize++;
+        }
+
+        return countSize;
     }
 
     @Override
@@ -49,7 +55,9 @@ public class MySet<T> extends MyArrayList implements Set {
 
     @Override
     public Object[] toArray() {
-        return new Object[0];
+        Object[] retArr = genericSet;
+
+        return retArr;
     }
 
     @Override
@@ -69,7 +77,30 @@ public class MySet<T> extends MyArrayList implements Set {
 
     @Override
     public boolean remove(Object o) {
-        return false;
+
+        if (this.contains(o)){
+
+            int objectCount = 0;
+            for (T element: genericSet) {
+                if (element.equals(o)){
+                    objectCount++;
+                }
+            }
+            T[] newGenericSet = (T[]) Array.newInstance(this.genericSet.getClass().getComponentType(),
+                    genericSet.length - objectCount);
+            int i = 0;
+            for (T element: genericSet) {
+                if (!element.equals(o)){
+                    newGenericSet[i] = element;
+                    i++;
+                }
+            }
+            genericSet = newGenericSet;
+            return true;
+        }
+        else {
+            return false;
+        }
     }
 
     @Override

src/test/java/MySetTest.java

@@ -50,4 +50,76 @@ public class MySetTest {
         // Then
         Assert.assertEquals(expected, actual);
     }
+
+    @Test
+    public void sizeLongTest() {
+        // Given
+        int expected = 4;
+        Long[] inputArray = {1L, 2L, 8L, 4L};
+        MySet<Long> mySet = new MySet<Long>(inputArray);
+
+        // When
+        int actual = mySet.size();
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void toArrayStringTest() {
+        // Given
+        Object[] expected = {"1", "2", "8", "4"};
+        String[] inputArray = {"1", "2", "8", "4"};
+        MySet<String> mySet = new MySet<String>(inputArray);
+
+        // When
+        Object[] actual = mySet.toArray();
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void removeStringTest() {
+        // Given
+        String[] expected = {"2", "8", "4"};
+        String[] inputArray = {"1", "2", "8", "4"};
+        MySet<String> mySet = new MySet<String>(inputArray);
+        Object object = "1";
+        // When
+        mySet.remove(object);
+        String[] actual = mySet.get();
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void removeBooleanReturnStringTest() {
+        // Given
+        boolean expected = true;
+        String[] inputArray = {"1", "2", "8", "4"};
+        MySet<String> mySet = new MySet<String>(inputArray);
+        Object object = "1";
+        // When
+        boolean actual = mySet.remove(object);
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void removeMultipleStringTest() {
+        // Given
+        String[] expected = {"4"};
+        String[] inputArray = {"1", "1", "1", "4"};
+        MySet<String> mySet = new MySet<String>(inputArray);
+        Object object = "1";
+        // When
+        mySet.remove(object);
+        String[] actual = mySet.get();
+
+        // Then
+        Assert.assertEquals(expected, actual);
+    }
 }