finished methods and corresponding tests

.idea/compiler.xml

@@ -10,7 +10,7 @@
       </profile>
     </annotationProcessing>
     <bytecodeTargetLevel>
-      <module name="arraz" target="1.5" />
+      <module name="arraz" target="6" />
     </bytecodeTargetLevel>
   </component>
 </project>

.idea/workspace.xml

@@ -2,12 +2,14 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="3455511b-a100-4bbd-b07c-68f009bc8dbc" name="Default" comment="">
-      <change afterPath="$PROJECT_DIR$/.idea/uiDesigner.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/arraz/src/main/java/MaxMin.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/arraz/src/main/java/NumberUtils.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/arraz/src/main/java/OddEven.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/arraz/src/main/java/TwoSmallest.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
       <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="$PROJECT_DIR$/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/main/java/MaxMin.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/main/java/MaxMin.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/arraz/src/main/java/OddEven.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/main/java/OddEven.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>
     <ignored path="$PROJECT_DIR$/arraz/target/" />
@@ -27,13 +29,13 @@
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="JAVA" value="5319" />
+          <entry key="JAVA" value="10337" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
           <entry key="CLASS" value="1" />
-          <entry key="JAVA" value="7" />
+          <entry key="JAVA" value="12" />
           <entry key="Markdown" value="1" />
         </counts>
       </usages-collector>
@@ -43,40 +45,80 @@
     <splitter split-orientation="horizontal" split-proportion="0.6340755">
       <split-first>
         <leaf SIDE_TABS_SIZE_LIMIT_KEY="375">
-          <file pinned="false" current-in-tab="true">
+          <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
               <provider selected="true" editor-type-id="text-editor">
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-                    <element signature="imports" expanded="true" />
                     <element signature="e#2787#2788#0" expanded="true" />
                     <element signature="e#2834#2835#0" expanded="true" />
+                    <element signature="e#4308#4317#0" expanded="true" />
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           </file>
           <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/arraz/src/main/java/MaxMin.java">
+            <entry file="file://$PROJECT_DIR$/arraz/src/main/java/NumberUtils.java">
               <provider selected="true" editor-type-id="text-editor">
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+                    <element signature="e#67#68#0" expanded="true" />
+                    <element signature="e#102#103#0" expanded="true" />
+                  </folding>
                 </state>
               </provider>
             </entry>
           </file>
           <file pinned="false" current-in-tab="false">
+            <entry file="file://$PROJECT_DIR$/arraz/src/main/java/OddEven.java">
+              <provider selected="true" editor-type-id="text-editor">
+                <state relative-caret-position="92">
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+                    <element signature="e#602#603#0" expanded="true" />
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+                </state>
+              </provider>
+            </entry>
+          </file>
+          <file pinned="false" current-in-tab="true">
             <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
               <provider selected="true" editor-type-id="text-editor">
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+                <state relative-caret-position="224">
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+                    <element signature="e#7910#7911#0" expanded="true" />
                   </folding>
                 </state>
               </provider>
@@ -110,6 +152,11 @@
       </list>
     </option>
   </component>
+  <component name="FindInProjectRecents">
+    <findStrings>
+      <find>isOdd</find>
+    </findStrings>
+  </component>
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
@@ -127,10 +174,11 @@
         <option value="$PROJECT_DIR$/arraz/src/main/java/ArrazUtilities.java" />
         <option value="$PROJECT_DIR$/arraz/src/main/java/NumIUtiils.java" />
         <option value="$PROJECT_DIR$/arraz/src/main/java/NumberUtils.java" />
-        <option value="$PROJECT_DIR$/arraz/src/main/java/OddEven.java" />
         <option value="$PROJECT_DIR$/arraz/src/main/java/MaxMin.java" />
-        <option value="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" />
+        <option value="$PROJECT_DIR$/arraz/src/main/java/TwoSmallest.java" />
+        <option value="$PROJECT_DIR$/arraz/src/main/java/OddEven.java" />
         <option value="$PROJECT_DIR$/arraz/src/main/java/Arraz.java" />
+        <option value="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" />
       </list>
     </option>
   </component>
@@ -152,6 +200,26 @@
     <option name="width" value="1440" />
     <option name="height" value="877" />
   </component>
+  <component name="ProjectInspectionProfilesVisibleTreeState">
+    <entry key="Project Default">
+      <profile-state>
+        <expanded-state>
+          <State />
+          <State>
+            <id>Java</id>
+          </State>
+          <State>
+            <id>Probable bugsJava</id>
+          </State>
+        </expanded-state>
+        <selected-state>
+          <State>
+            <id>ConstantConditions</id>
+          </State>
+        </selected-state>
+      </profile-state>
+    </entry>
+  </component>
   <component name="ProjectView">
     <navigator proportions="" version="1">
       <foldersAlwaysOnTop value="true" />
@@ -207,7 +275,7 @@
     <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="1544154666796" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1544196182964" />
     <property name="com.intellij.testIntegration.createTest.CreateTestDialog.defaultLibrary" value="JUnit4" />
     <property name="extract.method.default.visibility" value="private" />
     <property name="jdk.selected.JAVA_MODULE" value="1.8" />
@@ -235,7 +303,7 @@
       </list>
     </option>
   </component>
-  <component name="RunManager" selected="JUnit.ArrazTest.test2findMaxMindOfArray">
+  <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">
@@ -248,55 +316,53 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.test1InsertIntoArrayAt" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest" 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="test1InsertIntoArrayAt" />
-      <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.test1findMaxMinOfArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test1InsertAtEndAndCopy" 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="test1findMaxMinOfArray" />
+      <option name="METHOD_NAME" value="test1InsertAtEndAndCopy" />
       <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.test1removeElementFromArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test1sortArrayIntoEvensThenOdds" 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="test1removeElementFromArray" />
+      <option name="METHOD_NAME" value="test1sortArrayIntoEvensThenOdds" />
       <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.test2InsertIntoArrayAt" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test2InsertAtEndAndCopy" 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="test2InsertIntoArrayAt" />
+      <option name="METHOD_NAME" value="test2InsertAtEndAndCopy" />
       <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.test2findMaxMindOfArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.test2SortArrayIntoEvensThenodds" 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="test2findMaxMindOfArray" />
+      <option name="METHOD_NAME" value="test2SortArrayIntoEvensThenodds" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
@@ -327,19 +393,19 @@
       </method>
     </configuration>
     <list>
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-      <item itemvalue="JUnit.ArrazTest.test1InsertIntoArrayAt" />
-      <item itemvalue="JUnit.ArrazTest.test2InsertIntoArrayAt" />
-      <item itemvalue="JUnit.ArrazTest.test1findMaxMinOfArray" />
-      <item itemvalue="JUnit.ArrazTest.test2findMaxMindOfArray" />
+      <item itemvalue="JUnit.ArrazTest.test1InsertAtEndAndCopy" />
+      <item itemvalue="JUnit.ArrazTest.test2InsertAtEndAndCopy" />
+      <item itemvalue="JUnit.ArrazTest.test1sortArrayIntoEvensThenOdds" />
+      <item itemvalue="JUnit.ArrazTest.test2SortArrayIntoEvensThenodds" />
+      <item itemvalue="JUnit.ArrazTest" />
     </list>
     <recent_temporary>
       <list>
-        <item itemvalue="JUnit.ArrazTest.test2findMaxMindOfArray" />
-        <item itemvalue="JUnit.ArrazTest.test1findMaxMinOfArray" />
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-        <item itemvalue="JUnit.ArrazTest.test1InsertIntoArrayAt" />
-        <item itemvalue="JUnit.ArrazTest.test1removeElementFromArray" />
+        <item itemvalue="JUnit.ArrazTest" />
+        <item itemvalue="JUnit.ArrazTest.test2SortArrayIntoEvensThenodds" />
+        <item itemvalue="JUnit.ArrazTest.test1sortArrayIntoEvensThenOdds" />
+        <item itemvalue="JUnit.ArrazTest.test2InsertAtEndAndCopy" />
+        <item itemvalue="JUnit.ArrazTest.test1InsertAtEndAndCopy" />
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@@ -356,7 +422,7 @@
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       <workItem from="1543958998826" duration="113000" />
       <workItem from="1544020724645" duration="762000" />
-      <workItem from="1544143319002" duration="9951000" />
+      <workItem from="1544143319002" duration="17812000" />
     </task>
     <task id="LOCAL-00001" summary="readme and docs">
       <created>1544021313039</created>
@@ -369,39 +435,39 @@
     <servers />
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   <component name="TestHistory">
-    <history-entry file="ArrazTest_test1removeElementFromArray - 2018.12.06 at 22h 32m 14s.xml">
-      <configuration name="ArrazTest.test1removeElementFromArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1InsertAtStartAndCopy - 2018.12.07 at 09h 59m 44s.xml">
+      <configuration name="ArrazTest.test1InsertAtStartAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test2RemoveElementFromArray - 2018.12.06 at 22h 32m 55s.xml">
-      <configuration name="ArrazTest.test2RemoveElementFromArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1InsertAtStartAndCopy - 2018.12.07 at 10h 00m 00s.xml">
+      <configuration name="ArrazTest.test1InsertAtStartAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test1removeElementFromArray - 2018.12.06 at 22h 34m 36s.xml">
-      <configuration name="ArrazTest.test1removeElementFromArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test2InsertAtStartAndCopy - 2018.12.07 at 10h 01m 05s.xml">
+      <configuration name="ArrazTest.test2InsertAtStartAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test1InsertIntoArrayAt - 2018.12.06 at 22h 41m 58s.xml">
-      <configuration name="ArrazTest.test1InsertIntoArrayAt" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1InsertAtEndAndCopy - 2018.12.07 at 10h 02m 33s.xml">
+      <configuration name="ArrazTest.test1InsertAtEndAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test2InsertIntoArrayAt - 2018.12.06 at 22h 43m 33s.xml">
-      <configuration name="ArrazTest.test2InsertIntoArrayAt" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1InsertAtEndAndCopy - 2018.12.07 at 10h 04m 00s.xml">
+      <configuration name="ArrazTest.test1InsertAtEndAndCopy" configurationId="JUnit" />
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-      <configuration name="ArrazTest.test1findMaxMinOfArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1InsertAtEndAndCopy - 2018.12.07 at 10h 04m 11s.xml">
+      <configuration name="ArrazTest.test1InsertAtEndAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test1findMaxMinOfArray - 2018.12.06 at 22h 49m 31s.xml">
-      <configuration name="ArrazTest.test1findMaxMinOfArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test2InsertAtEndAndCopy - 2018.12.07 at 10h 05m 48s.xml">
+      <configuration name="ArrazTest.test2InsertAtEndAndCopy" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test2findMaxMindOfArray - 2018.12.06 at 22h 50m 12s.xml">
-      <configuration name="ArrazTest.test2findMaxMindOfArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1sortArrayIntoEvensThenOdds - 2018.12.07 at 10h 18m 49s.xml">
+      <configuration name="ArrazTest.test1sortArrayIntoEvensThenOdds" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_test2findMaxMindOfArray - 2018.12.06 at 22h 50m 54s.xml">
-      <configuration name="ArrazTest.test2findMaxMindOfArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1sortArrayIntoEvensThenOdds - 2018.12.07 at 10h 20m 17s.xml">
+      <configuration name="ArrazTest.test1sortArrayIntoEvensThenOdds" configurationId="JUnit" />
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-    <history-entry file="ArrazTest_test2findMaxMindOfArray - 2018.12.06 at 22h 51m 09s.xml">
-      <configuration name="ArrazTest.test2findMaxMindOfArray" configurationId="JUnit" />
+    <history-entry file="ArrazTest_test1sortArrayIntoEvensThenOdds - 2018.12.07 at 10h 22m 00s.xml">
+      <configuration name="ArrazTest.test1sortArrayIntoEvensThenOdds" configurationId="JUnit" />
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="13173000" />
+    <option name="totallyTimeSpent" value="21034000" />
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@@ -423,7 +489,7 @@
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       <window_info anchor="bottom" id="TODO" order="6" />
-      <window_info anchor="bottom" id="Terminal" order="7" />
+      <window_info anchor="bottom" id="Terminal" order="7" weight="0.32899868" />
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@@ -509,17 +575,30 @@
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     </entry>
-    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/NumberUtils.java">
+    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/TwoSmallest.java">
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+    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/MaxMin.java">
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+          <caret line="10" lean-forward="true" selection-start-line="10" selection-end-line="10" />
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+    </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">
@@ -532,40 +611,71 @@
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-    <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
+    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/NumberUtils.java">
       <provider selected="true" editor-type-id="text-editor">
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+        <state relative-caret-position="46">
+          <caret line="2" column="26" selection-start-line="2" selection-start-column="26" selection-end-line="2" selection-end-column="26" />
           <folding>
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     </entry>
-    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/MaxMin.java">
+    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
       <provider selected="true" editor-type-id="text-editor">
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     </entry>
-    <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
+    <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
       <provider selected="true" editor-type-id="text-editor">
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-          <caret line="151" column="41" lean-forward="true" selection-start-line="151" selection-start-column="41" selection-end-line="151" selection-end-column="41" />
+        <state relative-caret-position="224">
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             <element signature="imports" expanded="true" />
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+            <element signature="e#7910#7911#0" expanded="true" />
           </folding>
         </state>
       </provider>

arraz/arraz.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_5">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_6">
     <output url="file://$MODULE_DIR$/target/classes" />
     <output-test url="file://$MODULE_DIR$/target/test-classes" />
     <content url="file://$MODULE_DIR$">

arraz/pom.xml

@@ -7,6 +7,18 @@
     <groupId>rocks.zipcode.arraysgonewild</groupId>
     <artifactId>arraz</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>6</source>
+                    <target>6</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
     <dependencies>
         <dependency>
             <groupId>junit</groupId>

arraz/src/main/java/Arraz.java

@@ -1,5 +1,4 @@
-import java.util.Arrays;
-import java.util.Iterator;
+import java.util.*;
 
 public class Arraz {
 
@@ -160,5 +159,140 @@ public class Arraz {
 
         return maxMin;
     }
+
+    public static Integer[] removeDupesFromArray(Integer[] arr) {
+        Set<Integer> setNoDupes = new LinkedHashSet<Integer>(Arrays.asList(arr));
+        return setNoDupes.toArray(new Integer[setNoDupes.size()]);
+    }
+
+    public static Integer find2ndLargestValueFromArray(Integer[] arr) {
+        Set<Integer> setNoDupes = new TreeSet<Integer>(Arrays.asList(arr));
+        Integer[] orderedArr = setNoDupes.toArray(new Integer[setNoDupes.size()]);
+
+        if (orderedArr.length > 1) {
+            return orderedArr[1];
+        } else if (orderedArr.length == 1) {
+            return orderedArr[0];
+        } else {
+            return null;
+        }
+    }
+
+    public static ArrayList<Integer> makeMeAnArrayListFromArray(Integer[] arr) {
+        return new ArrayList<Integer>(Arrays.asList(arr));
+    }
+
+    public static Integer[] makeMeAnArrayFromArrayList(ArrayList<Integer> arrayList) {
+        return arrayList.toArray(new Integer[arrayList.size()]);
+    }
+
+    public static boolean check2ArraysForEqual(Integer[] ints, Integer[] ints1) {
+        if (ints.length != ints1.length)  {
+            return false;
+        }
+        for (int i = 0; i < ints.length; i++) {
+            if (ints[i] != ints1[i]) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public static int averageArrayWithoutMaxMin(Integer[] arr) {
+        MaxMin mm = findMaxMinOfArray(arr);
+        Integer[] noMax = removeElementFromArray(arr, mm.getMax());
+        Integer[] noMaxOrMin = removeElementFromArray(noMax, mm.getMin());
+
+        return averageOfArray(noMaxOrMin);
+    }
+
+    public static boolean arrayHas65and77(Integer[] arr) {
+        return makeMeAnArrayListFromArray(arr).contains(65) && makeMeAnArrayListFromArray(arr).contains(77);
+    }
+
+    public static boolean theTotalOfTensIs30(Integer[] arr) {
+        int sum = 0;
+        for (Integer i: arr
+             ) {
+            if (i % 10 == 0) {
+                sum += i;
+            }
+        }
+
+        return sum == 30;
+    }
+
+    public static TwoSmallest find2Smallest(Integer[] ints) {
+        if (ints.length > 1) {
+            TwoSmallest twoSmallest = new TwoSmallest();
+            int smallest = findMaxMinOfArray(ints).getMin();
+            twoSmallest.setSmallest(smallest);
+
+            Integer[] secondSmallest = removeElementFromArray(ints, smallest);
+            twoSmallest.setSecond_smallest(findMaxMinOfArray(secondSmallest).getMin());
+
+            return twoSmallest;
+        }
+        return null;
+    }
+
+    public static Integer[] makeMeACopyPlease(Integer[] arr) {
+        return copyArrayByInterator(reverseArray(arr));
+    }
+
+    private static Integer[] removeElementAtIndex(Integer[] arr, int index) {
+        if (index > arr.length) { return arr; }
+
+        Integer[] arr2 = new Integer[arr.length - 1];
+
+        int arr2Index = 0;
+        for (int i = 0; i < arr.length; i++) {
+            if (i != index) {
+                arr2[arr2Index++] = arr[i];
+            }
+        }
+
+        return arr2;
+    }
+
+    public static Integer[] removeLastItemAndCopy(Integer[] arr) {
+        Integer[] arr2 = removeElementAtIndex(arr, arr.length -1);
+        return copyArrayByInterator(arr2);
+    }
+
+    public static Integer[] removeFirstItemAndCopy(Integer[] arr) {
+        return copyArrayByInterator(removeElementAtIndex(arr, 0));
+    }
+
+    public static Integer[] insert(Integer[] arr, int index, int value) {
+        Integer[] newArray = new Integer[arr.length + 1];
+        System.arraycopy(arr, 0, newArray, 0, index);
+        System.arraycopy(arr, index, newArray,index + 1, newArray.length - (index + 1));
+        newArray[index] = value;
+        return newArray;
+    }
+    public static Integer[] insertAtStartAndCopy(Integer[] arr, int value) {
+        return copyArrayByInterator(insert(arr, 0, value));
+    }
+
+    public static Integer[] insertAtEndAndCopy(Integer[] arr, int value) {
+        return copyArrayByInterator((insert(arr, arr.length, value)));
+    }
+
+
+    public static Integer[] sortArrayIntoEvensThenOdds(Integer[] arr) {
+        ArrayList<Integer> odds = new ArrayList<Integer>();
+        ArrayList<Integer> evens = new ArrayList<Integer>();
+
+        for (Integer i : arr) {
+            if (NumberUtils.isOdd(i)) {
+                odds.add(i);
+            } else {
+                evens.add(i);
+            }
+        }
+        evens.addAll(odds);
+        return makeMeAnArrayFromArrayList(evens);
+    }
 }
 

arraz/src/main/java/MaxMin.java

@@ -1,6 +1,6 @@
 public class MaxMin{
-    public int max = Integer.MAX_VALUE;
-    public int min = Integer.MIN_VALUE;
+    private int max = Integer.MAX_VALUE;
+    private int min = Integer.MIN_VALUE;
 
     public MaxMin(int max, int min) {
         this.max = max;

arraz/src/main/java/OddEven.java

@@ -1,15 +1,36 @@
 public class OddEven{
-    public int odds = 0;
-    public int evens = 0;
+    private int odds = 0;
+    private int evens = 0;
+
+    private Integer[] evensArr;
+    private Integer[] oddsArr;
+
 
     public OddEven(int odds, int evens) {
         this.odds = odds;
         this.evens = evens;
     }
 
+
     public OddEven() {
     }
 
+    public Integer[] getEvensArr() {
+        return evensArr;
+    }
+
+    public void setEvensArr(Integer[] evensArr) {
+        this.evensArr = evensArr;
+    }
+
+    public Integer[] getOddsArr() {
+        return oddsArr;
+    }
+
+    public void setOddsArr(Integer[] oddsArr) {
+        this.oddsArr = oddsArr;
+    }
+
     public int getOdds() {
         return odds;
     }

arraz/src/main/java/TwoSmallest.java

@@ -0,0 +1,28 @@
+public class TwoSmallest {
+    private int smallest = Integer.MIN_VALUE;
+    private int second_smallest= Integer.MIN_VALUE;
+
+    public TwoSmallest() {
+    }
+
+    public TwoSmallest(int smallest, int second_smallest) {
+        this.smallest = smallest;
+        this.second_smallest = second_smallest;
+    }
+
+    public int getSmallest() {
+        return smallest;
+    }
+
+    public void setSmallest(int smallest) {
+        this.smallest = smallest;
+    }
+
+    public int getSecond_smallest() {
+        return second_smallest;
+    }
+
+    public void setSecond_smallest(int second_smallest) {
+        this.second_smallest = second_smallest;
+    }
+}

arraz/src/test/java/ArrazTest.java

@@ -1,5 +1,7 @@
+import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 
 import static java.lang.Double.NaN;
@@ -192,7 +194,187 @@ public class ArrazTest {
 
         assertEquals(0, Arraz.findMaxMinOfArray(arr).getMax());
         assertEquals(0, Arraz.findMaxMinOfArray(arr).getMin());
+    }
+
+    @Test
+    public void test1RemoveDupesFromArray() {
+        Integer[] arr = {0, 0, 0, 0, 3, 3, 1, 1, 5};
+        Integer[] exp = {0, 3, 1, 5};
+
+        assertEquals(exp, Arraz.removeDupesFromArray(arr));
+    }
+
+    @Test
+    public void test2RemoveDupesFromArray() {
+        assertEquals(ints2, Arraz.removeDupesFromArray(ints2));
+    }
+
+    @Test
+    public void test1find2ndLargestValueFromArray() {
+        int expected = 10;
+        assertEquals(expected, Arraz.find2ndLargestValueFromArray(ints2));
+    }
+
+    @Test
+    public void test2Find2NdLargestValueFromArray() {
+        int expected = -7;
+        assertEquals(expected, Arraz.find2ndLargestValueFromArray(ints));
+    }
+
+    @Test
+    public void testMakeMeAnArrayListFromArray() {
+        ArrayList<Integer> arrayList = new ArrayList<Integer>(Arrays.asList(ints2));
+        assertEquals(arrayList, Arraz.makeMeAnArrayListFromArray(ints2));
+    }
+
+    @Test
+    public void test2MakeMeAnArrayListFromArray() {
+        ArrayList<Integer> arrayList = new ArrayList<Integer>(Arrays.asList(ints));
+        assertEquals(arrayList, Arraz.makeMeAnArrayListFromArray(ints));
+    }
+
+    @Test
+    public void test1MakeMeAnArrayFromArrayList() {
+        ArrayList<Integer> arrayList = Arraz.makeMeAnArrayListFromArray(ints);
+        assertEquals(ints, Arraz.makeMeAnArrayFromArrayList(arrayList));
+    }
 
+    @Test
+    public void test2MakeMeAnArrayFromArrayList() {
+        ArrayList<Integer> arrayList = Arraz.makeMeAnArrayListFromArray(ints2);
+        assertEquals(ints2, Arraz.makeMeAnArrayFromArrayList(arrayList));
+    }
+
+    @Test
+    public void test1check2ArraysForEqual() {
+        assertTrue(Arraz.check2ArraysForEqual(ints, ints));
+    }
+
+    @Test
+    public void test2check2ArraysForEqual() {
+        assertFalse(Arraz.check2ArraysForEqual(ints, ints2));
+    }
+
+    @Test
+    public void test1AverageArrayWithoutMaxMin() {
+        int expected = 10;
+        assertEquals(expected, Arraz.averageArrayWithoutMaxMin(ints2));
+    }
+
+    @Test
+    public void test2AverageArrayWithoutMaxMin() {
+        int expected = 17;
+        assertEquals(expected, Arraz.averageArrayWithoutMaxMin(ints));
+    }
+
+    @Test
+    public void test1ArrayHas65and77() {
+        assertFalse(Arraz.arrayHas65and77(ints2));
+    }
+
+    @Test
+    public void test2ArrayHas65and77() {
+        Integer[] arr = {65, 77};
+        assertTrue(Arraz.arrayHas65and77(arr));
+    }
+
+    @Test
+    public void test1theTotalOfTensIs30() {
+        assertFalse(Arraz.theTotalOfTensIs30(ints));
     }
 
+    @Test
+    public void test2theTotalOfTensIs30() {
+        Integer[] arr = {10, 10, 10};
+        assertTrue(Arraz.theTotalOfTensIs30(arr));
+    }
+
+    @Test
+    public void test1find2Smallest() {
+        TwoSmallest smallest = new TwoSmallest(0, 1);
+        Integer[] arr = {0, 1};
+        assertEquals(smallest.getSmallest(), Arraz.find2Smallest(arr).getSmallest());
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void test2Find2Smallest() {
+        Integer[] arr = {};
+        Arraz.find2Smallest(arr);
+        assertEquals(0, Arraz.find2Smallest(arr).getSecond_smallest());
+
+        /* refactor to handle this */
+    }
+
+    @Test
+    public void test1MakeMeACopyPlease() {
+        Integer[] exp = Arraz.reverseArray(ints);
+        assertEquals(exp, Arraz.makeMeACopyPlease(ints));
+    }
+
+    @Test
+    public void test2MakeMeACopyPlease() {
+        Integer[] exp = Arraz.reverseArray(ints2);
+        assertEquals(exp, Arraz.makeMeACopyPlease(ints2));
+    }
+
+    @Test
+    public void test1removeLastItemAndCopy() {
+        Integer[] exp = {6, 10};
+        assertEquals(exp, Arraz.removeLastItemAndCopy(ints2));
+    }
+
+    @Test
+    public void test2RemoveLastItemAndCopy() {
+        Integer[] exp = {4,5,102,6,-7,12,-32,92};
+        assertEquals(exp, Arraz.removeLastItemAndCopy(ints));
+    }
+
+    @Test
+    public void test1RemoveFirstItemAndCopy() {
+        Integer[] exp = {10, 31};
+        assertEquals(exp, Arraz.removeFirstItemAndCopy(ints2));
+    }
+
+    @Test
+    public void test2RemoveFirstItemAndCopy() {
+        Integer[] exp = {5,102,6,-7,12,-32,92,8};
+        assertEquals(exp, Arraz.removeFirstItemAndCopy(ints));
+    }
+
+    @Test
+    public void test1InsertAtStartAndCopy() {
+        Integer[] exp = {1, 4, 5,102,6,-7,12,-32,92,8};
+        Integer[] actual = Arraz.insertAtStartAndCopy(ints, 1);
+        assertEquals(exp, actual);
+    }
+
+    @Test
+    public void test2InsertAtStartAndCopy() {
+        Integer[] exp = {5, 6, 10, 31};
+        assertEquals(exp, Arraz.insertAtStartAndCopy(ints2,5));
+    }
+
+    @Test
+    public void test1InsertAtEndAndCopy() {
+        Integer[] exp = {4, 5,102,6,-7,12,-32,92,8, 1};
+        assertEquals(exp, Arraz.insertAtEndAndCopy(ints, 1));
+    }
+
+    @Test
+    public void test2InsertAtEndAndCopy() {
+        Integer[] exp = {6, 10, 31, 5};
+        assertEquals(exp, Arraz.insertAtEndAndCopy(ints2, 5));
+    }
+
+    @Test
+    public void test1sortArrayIntoEvensThenOdds() {
+        Integer[] exp = {6, 10, 31};
+        assertEquals(exp, Arraz.sortArrayIntoEvensThenOdds(ints2));
+    }
+
+    @Test
+    public void test2SortArrayIntoEvensThenodds() {
+        Integer[] exp = {4, 102, 6, 12, -32, 92, 8, 5, -7};
+        assertEquals(exp, Arraz.sortArrayIntoEvensThenOdds(ints));
+    }
 }