done

.idea/compiler.xml

@@ -9,7 +9,7 @@
         <module name="arraz" />
       </profile>
     </annotationProcessing>
-    <bytecodeTargetLevel>
+    <bytecodeTargetLevel target="8">
       <module name="arraz" target="8" />
     </bytecodeTargetLevel>
   </component>

.idea/workspace.xml

@@ -2,9 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="3455511b-a100-4bbd-b07c-68f009bc8dbc" name="Default" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/arraz/arraz.iml" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/arraz.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/arraz/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/pom.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/arraz/src/main/java/Arraz.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/main/java/Arraz.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" afterDir="false" />
     </list>
@@ -28,52 +26,56 @@
       </usages-collector>
       <usages-collector id="statistics.file.extensions.edit">
         <counts>
-          <entry key="java" value="4494" />
+          <entry key="java" value="6387" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="JAVA" value="4494" />
+          <entry key="JAVA" value="6387" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.open">
         <counts>
-          <entry key="java" value="3" />
+          <entry key="java" value="4" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
-          <entry key="JAVA" value="3" />
+          <entry key="JAVA" value="4" />
         </counts>
       </usages-collector>
     </session>
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="375">
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/arraz/pom.xml">
-          <provider selected="true" editor-type-id="text-editor" />
-        </entry>
-      </file>
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="231">
-              <caret line="189" column="4" selection-start-line="189" selection-start-column="4" selection-end-line="189" selection-end-column="4" />
+            <state relative-caret-position="292">
+              <caret line="291" column="8" lean-forward="true" selection-start-line="291" selection-start-column="8" selection-end-line="291" selection-end-column="8" />
               <folding>
                 <element signature="imports" expanded="true" />
-                <element signature="e#3653#3654#0" expanded="true" />
-                <element signature="e#3679#3680#0" expanded="true" />
+                <element signature="e#3843#3844#0" expanded="true" />
+                <element signature="e#3870#3871#0" expanded="true" />
               </folding>
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/arraz/src/main/java/MaxMin.java">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="225">
+              <caret line="15" lean-forward="true" selection-start-line="15" selection-end-line="15" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="292">
-              <caret line="373" column="45" selection-start-line="373" selection-start-column="45" selection-end-line="373" selection-end-column="45" />
+            <state relative-caret-position="54">
+              <caret line="254" column="10" lean-forward="true" selection-start-line="254" selection-start-column="10" selection-end-line="254" selection-end-column="10" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
@@ -103,6 +105,11 @@
       </list>
     </option>
   </component>
+  <component name="FindInProjectRecents">
+    <findStrings>
+      <find>max</find>
+    </findStrings>
+  </component>
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
@@ -281,7 +288,7 @@
     <property name="GO_FMT" value="false" />
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1544194085762" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1544225649855" />
     <property name="com.intellij.testIntegration.createTest.CreateTestDialog.defaultLibrary" value="JUnit4" />
     <property name="jdk.selected.JAVA_MODULE" value="1.8" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
@@ -289,7 +296,7 @@
     <property name="project.structure.last.edited" value="Project" />
     <property name="project.structure.proportion" value="0.15" />
     <property name="project.structure.side.proportion" value="0.2" />
-    <property name="settings.editor.selected.configurable" value="Errors" />
+    <property name="settings.editor.selected.configurable" value="reference.projectsettings.compiler.javacompiler" />
   </component>
   <component name="RecentsManager">
     <key name="CreateTestDialog.RecentsKey">
@@ -314,7 +321,7 @@
       </list>
     </option>
   </component>
-  <component name="RunManager" selected="JUnit.ArrazTest.test1RemoveDupesFromArray">
+  <component name="RunManager" selected="JUnit.ArrazTest">
     <configuration default="true" type="Applet" factoryName="Applet">
       <option name="POLICY_FILE" value="$APPLICATION_HOME_DIR$/bin/appletviewer.policy" />
       <method v="2">
@@ -336,22 +343,22 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.test1CopyArrayByInterator" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test1RemoveDupesFromArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="test1CopyArrayByInterator" />
+      <option name="METHOD_NAME" value="test1RemoveDupesFromArray" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.test1RemoveDupesFromArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test1RemoveLastItemAndCopy" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="test1RemoveDupesFromArray" />
+      <option name="METHOD_NAME" value="test1RemoveLastItemAndCopy" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
@@ -369,6 +376,17 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
+    <configuration name="ArrazTest.test2RemoveLastItemAndCopy" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="arraz" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ArrazTest" />
+      <option name="METHOD_NAME" value="test2RemoveLastItemAndCopy" />
+      <option name="TEST_OBJECT" value="method" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
     <configuration default="true" type="JUnit" factoryName="JUnit">
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
@@ -394,16 +412,18 @@
     </configuration>
     <list>
       <item itemvalue="JUnit.ArrazTest" />
-      <item itemvalue="JUnit.ArrazTest.test1CopyArrayByInterator" />
       <item itemvalue="JUnit.ArrazTest.test2CopyArrayByInterator" />
       <item itemvalue="JUnit.ArrazTest.test1RemoveDupesFromArray" />
+      <item itemvalue="JUnit.ArrazTest.test1RemoveLastItemAndCopy" />
+      <item itemvalue="JUnit.ArrazTest.test2RemoveLastItemAndCopy" />
     </list>
     <recent_temporary>
       <list>
         <item itemvalue="JUnit.ArrazTest" />
+        <item itemvalue="JUnit.ArrazTest.test2RemoveLastItemAndCopy" />
+        <item itemvalue="JUnit.ArrazTest.test1RemoveLastItemAndCopy" />
         <item itemvalue="JUnit.ArrazTest.test1RemoveDupesFromArray" />
         <item itemvalue="JUnit.ArrazTest.test2CopyArrayByInterator" />
-        <item itemvalue="JUnit.ArrazTest.test1CopyArrayByInterator" />
       </list>
     </recent_temporary>
   </component>
@@ -422,7 +442,7 @@
       <workItem from="1544020724645" duration="762000" />
       <workItem from="1544059628498" duration="1362000" />
       <workItem from="1544064536860" duration="12499000" />
-      <workItem from="1544144402835" duration="7928000" />
+      <workItem from="1544144402835" duration="22092000" />
     </task>
     <task id="LOCAL-00001" summary="readme and docs">
       <created>1544021313039</created>
@@ -435,44 +455,45 @@
     <servers />
   </component>
   <component name="TestHistory">
-    <history-entry file="ArrazTest - 2018.12.06 at 20h 01m 34s.xml">
-      <configuration name="ArrazTest" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1RemoveLastItemAndCopy - 2018.12.07 at 15h 44m 39s.xml">
+      <configuration name="ArrazTest.test1RemoveLastItemAndCopy" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_test1RemoveDupesFromArray - 2018.12.06 at 20h 40m 58s.xml">
-      <configuration name="ArrazTest.test1RemoveDupesFromArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test2RemoveLastItemAndCopy - 2018.12.07 at 15h 44m 54s.xml">
+      <configuration name="ArrazTest.test2RemoveLastItemAndCopy" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_test1RemoveDupesFromArray - 2018.12.06 at 20h 42m 02s.xml">
-      <configuration name="ArrazTest.test1RemoveDupesFromArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest - 2018.12.07 at 15h 57m 05s.xml">
+      <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 08h 22m 44s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 15h 58m 53s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 08h 22m 48s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 16h 37m 22s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 08h 30m 08s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 16h 38m 12s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 08h 36m 40s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 16h 41m 20s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 08h 38m 07s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 18h 03m 22s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 09h 15m 22s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 18h 10m 22s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 09h 36m 49s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 18h 30m 20s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="25011000" />
+    <option name="totallyTimeSpent" value="39175000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="23" width="1280" height="709" extended-state="0" />
+    <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" weight="0.18659128" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.18659128" />
       <window_info id="Structure" order="1" weight="0.24959612" />
       <window_info id="Designer" order="2" />
       <window_info id="Image Layers" order="3" />
@@ -481,8 +502,8 @@
       <window_info id="Favorites" order="6" side_tool="true" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" />
-      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.32996634" />
-      <window_info anchor="bottom" id="Debug" order="3" weight="0.39730638" />
+      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.2777778" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.3956229" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="bottom" id="TODO" order="6" />
@@ -550,16 +571,16 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/arraz/pom.xml">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/main/java/MaxMin.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="180">
-          <caret line="12" column="9" lean-forward="true" selection-start-line="12" selection-start-column="9" selection-end-line="12" selection-end-column="9" />
+        <state relative-caret-position="225">
+          <caret line="15" lean-forward="true" selection-start-line="15" selection-end-line="15" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/arraz/pom.xml">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
     <entry file="file://$PROJECT_DIR$/README.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SECOND">
@@ -572,8 +593,8 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="292">
-          <caret line="373" column="45" selection-start-line="373" selection-start-column="45" selection-end-line="373" selection-end-column="45" />
+        <state relative-caret-position="54">
+          <caret line="254" column="10" lean-forward="true" selection-start-line="254" selection-start-column="10" selection-end-line="254" selection-end-column="10" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
@@ -582,12 +603,12 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="231">
-          <caret line="189" column="4" selection-start-line="189" selection-start-column="4" selection-end-line="189" selection-end-column="4" />
+        <state relative-caret-position="292">
+          <caret line="291" column="8" lean-forward="true" selection-start-line="291" selection-start-column="8" selection-end-line="291" selection-end-column="8" />
           <folding>
             <element signature="imports" expanded="true" />
-            <element signature="e#3653#3654#0" expanded="true" />
-            <element signature="e#3679#3680#0" expanded="true" />
+            <element signature="e#3843#3844#0" expanded="true" />
+            <element signature="e#3870#3871#0" expanded="true" />
           </folding>
         </state>
       </provider>

arraz/src/main/java/Arraz.java

@@ -123,9 +123,19 @@ public class Arraz {
     }
 
     public int[] removeDupesFromArray(int[] arr) {
-       // ArrayList<Integer> list = new ArrayList<Integer>(Arrays.asList(arr));
-       // return newArr;
-        return null;
+        ArrayList<Integer> list = new ArrayList<>();
+        for(int n : arr) {
+            if(!list.contains(n))
+                list.add(n);
+        }
+        arr = new int[list.size()];
+        int index = 0;
+        for(int n : list) {
+            arr[index] = list.get(index);
+            index++;
+        }
+        //return newArr;
+        return arr;
     }
 
     public int find2ndLargestValueFromArray(int[] arr) {
@@ -182,11 +192,109 @@ public class Arraz {
     }
 
     public boolean arrayHas65and77(int[] arr) {
-        for(int n : arr) {
-            if (n != 65 || n != 77)
-                return false;
+        ArrayList<Integer> list = new ArrayList<>();
+        for(int n : arr)
+            list.add(n);
+
+        if(list.contains(65) && list.contains(77))
+            return true;
+        else return false;
+    }
+
+
+    public boolean theTotalofTensIs30(int[] arr) {
+        int sum = 0;
+        for(int n : arr){
+            if(n == 10)
+                sum += n;
         }
-        return true;
+
+        if(sum == 30)
+            return true;
+        else return false;
+    }
+
+    public int[] smallestAndSecondSmallest(int[] arr) {
+        int smallest = Integer.MAX_VALUE;
+        int secondSmallest = smallest;
+        for(int n : arr){
+            if(n < smallest) {
+                secondSmallest = smallest;
+                smallest = n;
+            }
+            else if(n < secondSmallest)
+                secondSmallest = smallest;
+        }
+       return new int[]{smallest, secondSmallest};
+    }
+
+    public int[] makeMeACopyPlease(int[] arr) {
+        int[] cpyArr = Arrays.copyOf(arr,arr.length);
+        int[] revArr = new int[cpyArr.length];
+        int index = 0;
+        for(int i = arr.length - 1; i >= 0; i--){
+            revArr[index] = arr[i];
+            index++;
+        }
+        return revArr;
     }
 
+    public int[] removeLastItemAndCopy(int[] arr) {
+        int[] newArr = new int[arr.length-1];
+        for(int i = 0;i<arr.length-1;i++){
+            newArr[i] = arr[i];
+        }
+        return newArr;
+    }
+
+    public int[] removeFirstItemAndCopy(int[] arr) {
+        int[] newArr = new int[arr.length-1];
+
+        for(int i = 1; i<arr.length; i++){
+            newArr[i-1] = arr[i];
+        }
+        return newArr;
+    }
+
+    public int[] insertAtStartAndCopy(int[] arr, int n) {
+        int[] newArr = new int[arr.length+1];
+        newArr[0] = n;
+        for(int i = 0; i<arr.length; i++){
+            newArr[i+1] = arr[i];
+        }
+        return newArr;
+    }
+
+    public int[] insertAtEndAndCopy(int[] arr, int n) {
+        int[] newArr = new int[arr.length+1];
+        newArr[newArr.length-1] = n;
+        for(int i = 0; i<arr.length; i++){
+            newArr[i] = arr[i];
+        }
+        return newArr;
+    }
+
+    public int[] sortArrayIntoEvensThenOdds(int[] arr) {
+        Arrays.sort(arr);
+
+        int[] sortedArr = new int[arr.length];
+        List<Integer> evens = new ArrayList<>();
+        List<Integer> odds = new ArrayList<>();
+
+        for(int i = 0;i<arr.length;i++){
+            if(arr[i] %2 == 0)
+                evens.add(arr[i]);
+            else
+                odds.add(arr[i]);
+        }
+
+        evens.addAll(odds);
+        for(int i = 0;i<arr.length;i++){
+            sortedArr[i] = evens.get(i);
+        }
+
+        return sortedArr;
+    }
+
+
 }

arraz/src/test/java/ArrazTest.java

@@ -382,4 +382,169 @@ public class ArrazTest {
                 boolean actual = arraz.arrayHas65and77(arr);
                 Assert.assertEquals(expected, actual);
             }
+
+            @Test
+            public void test1TheTotalofTensIs30(){
+                int[] arr = new int[]{65,10,9,10, 10,77};
+                boolean expected = true;
+                boolean actual = arraz.theTotalofTensIs30(arr);
+                Assert.assertEquals(expected, actual);
+            }
+
+            @Test
+            public void test2TheTotalofTensIs30(){
+                int[] arr = new int[]{51,83,96, 10};
+                boolean expected = false;
+                boolean actual = arraz.theTotalofTensIs30(arr);
+                Assert.assertEquals(expected, actual);
+            }
+
+            @Test
+            public void test1FindSmallestAndSecondSmallest(){
+                int[] arr = new int[]{5,3,1,8};
+                int[] expected = {1,3};
+                int[] actual = arraz.smallestAndSecondSmallest(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+            }
+
+            @Test
+            public void test2FindSmallestAndSecondSmallest(){
+                int[] arr = new int[]{50,9,13,5,8};
+                int[] expected = {5, 9};
+                int[] actual = arraz.smallestAndSecondSmallest(arr);
+                Assert.assertEquals(expected.length, actual.length);
+            }
+
+            @Test
+            public void test1MakeMeACopyPlease(){
+                int[] arr = new int[]{5,3,1};
+                int[] expected = {1,3,5};
+                int[] actual = arraz.makeMeACopyPlease(arr);
+                Assert.assertEquals(expected.length, actual.length);    
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test2MakeMeACopyPlease(){
+                int[] arr = new int[]{50,9};
+                int[] expected = {9, 50};
+                int[] actual = arraz.makeMeACopyPlease(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+            }
+
+            @Test
+            public void test1RemoveLastItemAndCopy(){
+                int[] arr = new int[]{5,3,1,6};                            
+                int[] expected = {5,3,1};
+                int[] actual = arraz.removeLastItemAndCopy(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test2RemoveLastItemAndCopy(){
+                int[] arr = new int[]{50,9, 8};
+                int[] expected = {50, 9};
+                int[] actual = arraz.removeLastItemAndCopy(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+            }
+
+            @Test
+            public void test1RemoveFirstItemAndCopy(){
+                int[] arr = new int[]{5,3,1,6};
+                int[] expected = {3,1, 6};
+                int[] actual = arraz.removeFirstItemAndCopy(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test2RemoveFirstItemAndCopy(){
+                int[] arr = new int[]{50,9, 8};
+                int[] expected = {9, 8};
+                int[] actual = arraz.removeFirstItemAndCopy(arr);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+            }
+
+            @Test
+            public void test1InsertAtStartAndCopy(){
+                int[] arr = new int[]{50,9, 8};
+                int[] expected = {3,50,9, 8};
+                int[] actual = arraz.insertAtStartAndCopy(arr, 3);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+                Assert.assertEquals(expected[3], actual[3]);
+            }
+
+            @Test
+            public void test2InsertAtStartAndCopy(){
+                int[] arr = new int[]{98, 34};
+                int[] expected = {73,98,34};
+                int[] actual = arraz.insertAtStartAndCopy(arr, 73);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test1InsertAtEndAndCopy(){
+                int[] arr = new int[]{50,9, 8};
+                int[] expected = {50,9, 8, 3};
+                int[] actual = arraz.insertAtEndAndCopy(arr, 3);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+                Assert.assertEquals(expected[3], actual[3]);
+            }
+
+            @Test
+            public void test2InsertAtEndAndCopy(){
+                int[] arr = new int[]{98, 34};
+                int[] expected = {98,34,73};
+                int[] actual = arraz.insertAtEndAndCopy(arr, 73);
+                Assert.assertEquals(expected.length, actual.length);
+                Assert.assertEquals(expected[0], actual[0]);
+                Assert.assertEquals(expected[1], actual[1]);
+                Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test1SortArrayIntoEvensThenOdds(){
+               int[] arr = new int[]{5,3,1,6,4};
+               int[] expected = {4,6,1,3,5};
+               int[] actual = arraz.sortArrayIntoEvensThenOdds(arr);
+               Assert.assertEquals(expected.length, actual.length);
+               Assert.assertEquals(expected[0], actual[0]);
+               Assert.assertEquals(expected[1], actual[1]);
+               Assert.assertEquals(expected[2], actual[2]);
+            }
+
+            @Test
+            public void test2SortArrayIntoEvensThenOdds(){
+              int[] arr = new int[]{9,3,2,6};
+              int[] expected = {2, 6, 3, 9};
+              int[] actual = arraz.sortArrayIntoEvensThenOdds(arr);
+              Assert.assertEquals(expected.length, actual.length);
+              Assert.assertEquals(expected[0], actual[0]);
+              Assert.assertEquals(expected[1], actual[1]);
+              Assert.assertEquals(expected[2], actual[2]);
+            }
 }