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+      <window_info anchor="right" id="Theme Preview" order="6" />
+      <window_info anchor="right" id="Palette&#9;" order="7" />
+      <window_info anchor="right" id="Maven Projects" order="8" />
+    </layout>
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="VcsContentAnnotationSettings">
+    <option name="myLimit" value="2678400000" />
+  </component>
+  <component name="editorHistoryManager">
+    <entry file="file://$PROJECT_DIR$/src/main/java/Entry.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="75">
+          <caret line="6" column="27" lean-forward="true" selection-start-line="6" selection-start-column="27" selection-end-line="6" selection-end-column="27" />
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+            <element signature="imports" expanded="true" />
+          </folding>
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+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/TestMyArrayList.java">
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+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/MyMap.java">
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+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/TestMyMap.java">
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+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+  </component>
+  <component name="masterDetails">
+    <states>
+      <state key="ProjectJDKs.UI">
+        <settings>
+          <last-edited>1.8</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+    </states>
+  </component>
+</project>

generics.iml

@@ -0,0 +1,16 @@
+<?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">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: junit:junit:4.12" level="project" />
+    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+  </component>
+</module>

src/main/java/MyArrayList.java

@@ -0,0 +1,120 @@
+import java.util.Arrays;
+
+public class MyArrayList<T> {
+    private Object[] array;
+    private int size;
+    private int capacity;
+
+    public MyArrayList() {
+        this.array = new Object[0];
+    }
+
+    public MyArrayList(int size){
+        this.array = new Object[size];
+    }
+
+    public Object[] getArray(){
+        return array;
+    }
+
+    public void add(Object newObject) {
+        Object[] newArray = Arrays.copyOf(this.array, array.length + 1);
+        newArray[newArray.length-1] = newObject;
+        array = newArray;
+
+    }
+
+    public void add(int index, Object newObject){
+        Object[] newArray = Arrays.copyOf(this.array, array.length+1);
+        for (int i = 0; i < array.length-1; i++) {
+            if(i<index){
+                newArray[i] = array[i];
+            }else if(i>index){
+                newArray[i] = array[i-1];
+            }else{
+                newArray[i] = newObject;
+            }
+        }
+        array = newArray;
+    }
+
+    public Object get(int index){
+        Object o = null;
+        for (int i = 0; i < array.length; i++) {
+            if (i == index){
+                o = array[i];
+            }
+        }
+        return o;
+    }
+
+    public void remove(int index){
+        Object[] newArray = new Object[array.length-1];
+        for (int i = 0; i < array.length-1; i++) {
+            if(i>index) {
+                newArray[i] = array[i];
+            }if(i<index){
+                    newArray[i-1]= array[i];
+            }
+        }
+        array = newArray;
+    }
+    
+    public void remove (Object obj){
+        Object[] newArray = new Object[array.length-1];
+        int index = 0;
+        for (int i = 0; i < array.length-1; i++) {
+                if(array[i].equals(obj)){
+                    index = i;
+                }
+        }
+        remove(index);
+        array = newArray;
+    }
+
+    public int size(){
+        int count = 0;
+        for (int i = 0; i < array.length; i++) {
+            count = count+1;
+        }
+        return count;
+    }
+
+    public void set(int index, Object obj){
+        for (int i = 0; i < array.length; i++) {
+            if(i == index){
+                array[i] = obj;
+            }
+        }
+    }
+
+    public void clear(){
+        array = new Object[0];
+    }
+
+    public boolean isEmpty(){
+        if(array.length ==0){
+            return true;
+        } else
+            return false;
+    }
+
+    public boolean contains(Object o) {
+        if (array.length == 0) {
+            return false;
+        } else {
+            for (Object obj : getArray()) {
+                try {
+                    if (obj.equals(o)) {
+                        return true;
+                    }
+                }catch (NullPointerException e){
+
+                }
+            }
+            return false;
+        }
+    }
+
+
+}

src/main/java/MyMap.java

@@ -0,0 +1,81 @@
+public class MyMap<K,V>{
+    private MyArrayList<V> mapValue;
+    private MySet<K> mapKey;
+    private int size;
+
+
+    public MyMap(){
+        this.size = 0;
+        this.mapKey = new MySet<>();
+        this.mapValue = new MyArrayList<>();
+    }
+
+    public MyMap(int size){
+        this.size = size;
+        this.mapValue = new MyArrayList<>();
+        this.mapKey = new MySet<>();
+    }
+
+    public void put(K key, V value){
+        mapKey.add(key);
+        mapValue.add(value);
+    }
+
+    public boolean containsKey(K key){
+
+        return mapKey.contains(key);
+    }
+
+    public boolean containsValue(V value){
+        return mapValue.contains(value);
+    }
+
+    public void clear(){
+        mapKey.clear();
+        mapValue.clear();
+    }
+
+
+    public V get(K key){
+        int index = 0;
+        for (int i = 0; i < mapKey.size(); i++) {
+            if (mapKey.get(i).equals(key)){
+                index = i;
+            }
+        }
+        return (V)mapValue.get(index);
+    }
+
+    public boolean isEmpty(){
+        return mapKey.isEmpty();
+    }
+
+    public void remove(Object key){
+        for (int i = 0; i < mapKey.size(); i++) {
+            if(mapKey.get(i).equals(key)){
+                mapKey.remove(key);
+            }
+        }
+    }
+
+    public void remove(Object key, Object value){
+        for (int i = 0; i < mapKey.size(); i++) {
+            if(mapKey.get(i).equals(key)){
+                mapKey.remove(key);
+                mapValue.remove(value);
+            }
+        }
+    }
+
+    public void replace(K key, V value){
+        for (int i = 0; i < mapKey.size(); i++) {
+            if (mapKey.get(i).equals(key)){
+                mapValue.set(i, value);
+            }
+        }
+    }
+
+    public int size(){
+        return mapKey.size();
+    }
+}

src/main/java/MySet.java

@@ -0,0 +1,91 @@
+import java.util.Arrays;
+
+public class MySet<E> {
+    private MyArrayList<E> set;
+
+    public MySet() {
+        this.set = new MyArrayList<>(0);
+
+    }
+
+    public void MySet(){}
+
+    public void add(Object obj) {
+        if (set.contains(obj)) {
+            throw new IllegalArgumentException("Value already exist in set");
+        }else{
+            set.add(obj);
+        }
+    }
+
+    public Object get(int index){
+        Object o = null;
+        for (int i = 0; i < set.size(); i++) {
+            if (i == index){
+                o = set.get(i);
+            }
+        }
+        return o;
+    }
+
+    public void addAll(MyArrayList<Object> e){
+
+        for (int i = set.size()-2; i < e.size(); i++) {
+            if (contains(e.get(i))){
+                throw new IllegalArgumentException(e.get(i)+" already exist in set");
+            }else{
+                set.add(e.get(i));
+            }
+        }
+    }
+
+    public void clear(){
+        set = new MyArrayList<>();
+    }
+
+    public boolean contains(Object o){
+
+        return this.set.contains(o);
+    }
+
+    public boolean containsAll(MyArrayList<E> myArrayList){
+
+        for (int i = 0; i < myArrayList.size(); i++) {
+            if(contains(myArrayList.get(i))){
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public boolean equals(Object o){
+        Object objO = new Object();
+        if(o.equals(objO)){
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+    public boolean isEmpty(){
+
+        return this.set.isEmpty();
+    }
+
+    public void remove(Object o){
+      this.set.remove(o);
+    }
+
+    public int size(){
+        return this.set.size();
+    }
+
+    public Object[] toArray(){
+        Object[] result=new Object[set.size()];
+        for (int i = 0; i < set.size(); i++) {
+            result[i] = set.get(i);
+        }
+
+        return result;
+    }
+}

src/test/java/TestMyArrayList.java

@@ -0,0 +1,119 @@
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestMyArrayList{
+    MyArrayList arrayList = new MyArrayList();
+
+
+    @Test
+    public void testAdd(){
+        Object item = new Object();
+        int expected = 1;
+        arrayList.add(item);
+        int actual = arrayList.size();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testAdd_atSpecificIndex(){
+
+        Integer one = 1;
+        Integer two = 2;
+        arrayList.add(two);
+        arrayList.add(0,one);
+        Integer expected = 2;
+        Integer actual = (Integer)arrayList.size();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testGet(){
+        arrayList.add(1);
+        Object actual = arrayList.get(0);
+        Assert.assertEquals(1, actual);
+    }
+
+    @Test
+    public void testRemove_byIndex(){
+        Integer one = 1;
+        Integer two = 2;
+        arrayList.add(one);
+        arrayList.add(two);
+        arrayList.remove(0);
+
+
+        Assert.assertEquals(1, arrayList.size());
+    }
+
+    @Test
+    public void testRemove_byObject(){
+        Object a = "a";
+        Object b = "b";
+        Object c = "c";
+        arrayList.add(a);
+        arrayList.add(b);
+        arrayList.add(c);
+        arrayList.remove(a);
+
+        Assert.assertEquals(2,arrayList.size());
+    }
+
+    @Test
+    public void testSet(){
+        Integer one = 1;
+        Integer two = 2;
+        Integer three = 3;
+
+        arrayList.add(three);
+        arrayList.add(two);
+        arrayList.add(three);
+        arrayList.set(0,one);
+
+        Assert.assertEquals(one,arrayList.get(0));
+    }
+
+    @Test
+    public void testClear(){
+
+        arrayList.clear();
+        int expected = 0;
+        int actual = arrayList.size();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testIsEmpty(){
+
+        arrayList.clear();
+
+        Assert.assertTrue(arrayList.isEmpty());
+    }
+
+    @Test
+    public void testIsEmpty_whenItsNot(){
+
+        Integer one = 1;
+        arrayList.add(one);
+
+        Assert.assertFalse(arrayList.isEmpty());
+    }
+
+    @Test
+    public void testContains(){
+        String str = "Hello";
+        arrayList.add(str);
+
+        Assert.assertTrue(arrayList.contains(str));
+    }
+
+    @Test
+    public void testContains_whenItDoesnt(){
+        String str = "Hello";
+
+        Assert.assertFalse(arrayList.contains(str));
+    }
+}

src/test/java/TestMyMap.java

@@ -0,0 +1,84 @@
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestMyMap<K,V>{
+    MyMap<String, Integer> myMap = new MyMap<>();
+
+    @Before
+    public void setup(){
+        myMap.put("One", 1);
+        myMap.put("Two", 2);
+        myMap.put("Three", 3);
+    }
+
+    @Test
+    public void testPut(){
+        myMap.put("Four", 4);
+
+        Assert.assertEquals(4,myMap.size());
+    }
+
+    @Test
+    public void testContainsKey_whenTrue(){
+
+        Assert.assertTrue(myMap.containsKey("One"));
+    }
+
+    @Test
+    public void testContainsKey_whenFalse(){
+
+        Assert.assertFalse(myMap.containsKey("Four"));
+    }
+
+    @Test
+    public void testContainsValue_whenTrue(){
+
+        Assert.assertTrue(myMap.containsValue(3));
+    }
+
+    @Test
+    public void testContainsValue_whenFalse(){
+
+        Assert.assertFalse(myMap.containsValue(5));
+    }
+
+    @Test
+    public void testClear(){
+        myMap.clear();
+
+        Assert.assertTrue(myMap.isEmpty());
+    }
+
+    @Test
+    public void testGet(){
+
+        Integer expected = 3;
+        Integer actual = myMap.get("Three");
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testRemove_givenKeyAndValue(){
+
+        myMap.remove("Three",3);
+
+        Assert.assertFalse(myMap.containsKey("Three"));
+    }
+
+    @Test
+    public void testRemove_givenKey(){
+        myMap.remove("One");
+
+        Assert.assertFalse(myMap.containsKey("One"));
+    }
+
+    @Test
+    public void testReplace(){
+        myMap.replace("Three", 4);
+
+        Integer expected = 4;
+        Assert.assertEquals(expected, myMap.get("Three"));
+    }
+}

src/test/java/TestMySet.java

@@ -0,0 +1,95 @@
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestMySet {
+    MySet set = new MySet();
+
+    @Before
+    public void setup(){
+        Integer one = 1;
+        Integer two = 2;
+        set.add(one);
+        set.add(two);
+    }
+
+    @Test
+    public void testAdd(){
+        Integer three = 3;
+
+        set.add(three);
+
+        Assert.assertEquals(3,set.size());
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testAdd_duplicate(){
+        Integer one = 1;
+
+        set.add(one);
+
+    }
+
+    @Test
+    public void testAddAll(){
+        MyArrayList<Integer> integerCollection = new MyArrayList<>();
+        integerCollection.add(6);
+        integerCollection.add(3);
+
+        int size = 4;
+        set.addAll(integerCollection);
+
+        Assert.assertEquals(size, set.size());
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testAddAll_withDuplicate(){
+        MyArrayList<Integer> integerCollection = new MyArrayList<>();
+        integerCollection.add(1);
+        integerCollection.add(3);
+        integerCollection.add(5);
+
+        Integer one = 1;
+        set.add(one);
+    }
+
+    @Test
+    public void testClear(){
+
+        set.clear();
+
+        Assert.assertTrue(set.isEmpty());
+    }
+
+    @Test
+    public void testContains(){
+
+        Assert.assertTrue(set.contains(1));
+    }
+
+    @Test
+    public void testContains_whenFalse(){
+
+        Assert.assertFalse(set.contains(3));
+    }
+
+    @Test
+    public void testContainAll(){
+        MyArrayList<Integer> integerCollection = new MyArrayList<>();
+        integerCollection.add(1);
+        integerCollection.add(2);
+
+        Assert.assertTrue(set.containsAll(integerCollection));
+    }
+
+    @Test
+    public void testContainAll_whenFalse(){
+        MyArrayList<Integer> integerCollection = new MyArrayList<>();
+
+        integerCollection.add(3);
+        integerCollection.add(5);
+
+        Assert.assertFalse(set.containsAll(integerCollection));
+    }
+
+}