fixed abstract method for getArray

.idea/workspace.xml

@@ -2,18 +2,19 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="76996a56-6b4e-4266-927f-fbee7cd1c571" name="Default Changelist" comment="">
-      <change afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Learner.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Learner.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/target/" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
@@ -34,38 +35,39 @@
     <session id="-521849941">
       <usages-collector id="statistics.lifecycle.project">
         <counts>
-          <entry key="project.closed" value="4" />
+          <entry key="project.closed" value="5" />
           <entry key="project.open.time.1" value="1" />
           <entry key="project.open.time.19" value="1" />
           <entry key="project.open.time.3" value="2" />
           <entry key="project.open.time.30" value="1" />
-          <entry key="project.opened" value="5" />
+          <entry key="project.open.time.4" value="1" />
+          <entry key="project.opened" value="6" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.open">
         <counts>
-          <entry key="java" value="32" />
+          <entry key="java" value="36" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
-          <entry key="JAVA" value="32" />
+          <entry key="JAVA" value="36" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.edit">
         <counts>
-          <entry key="java" value="9043" />
+          <entry key="java" value="11243" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="JAVA" value="9043" />
+          <entry key="JAVA" value="11243" />
         </counts>
       </usages-collector>
     </session>
   </component>
   <component name="FileEditorManager">
-    <splitter split-orientation="horizontal" split-proportion="0.4861779">
+    <splitter split-orientation="horizontal" split-proportion="0.34356198">
       <split-first>
         <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
           <file pinned="false" current-in-tab="false">
@@ -102,27 +104,17 @@
           <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructor.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="75">
-                  <caret line="8" column="23" selection-start-line="8" selection-start-column="23" selection-end-line="8" selection-end-column="23" />
+                <state relative-caret-position="180">
+                  <caret line="18" column="5" lean-forward="true" selection-start-line="18" selection-start-column="5" selection-end-line="18" selection-end-column="5" />
                 </state>
               </provider>
             </entry>
           </file>
-          <file pinned="false" current-in-tab="false">
+          <file pinned="false" current-in-tab="true">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="525">
-                  <caret line="35" column="22" selection-start-line="35" selection-start-column="22" selection-end-line="35" selection-end-column="22" />
-                  <folding>
-                    <element signature="e#170#171#0" expanded="true" />
-                    <element signature="e#208#209#0" expanded="true" />
-                    <element signature="e#235#236#0" expanded="true" />
-                    <element signature="e#280#281#0" expanded="true" />
-                    <element signature="e#322#323#0" expanded="true" />
-                    <element signature="e#363#364#0" expanded="true" />
-                    <element signature="e#1006#1007#0" expanded="true" />
-                    <element signature="e#1040#1041#0" expanded="true" />
-                  </folding>
+                <state relative-caret-position="390">
+                  <caret line="32" selection-start-line="32" selection-end-line="32" />
                 </state>
               </provider>
             </entry>
@@ -130,17 +122,21 @@
           <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="150">
-                  <caret line="10" column="11" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+                <state relative-caret-position="753">
+                  <caret line="57" column="33" selection-start-line="57" selection-start-column="33" selection-end-line="57" selection-end-column="33" />
+                  <folding>
+                    <element signature="e#2497#2498#0" expanded="true" />
+                    <element signature="e#2528#2529#0" expanded="true" />
+                  </folding>
                 </state>
               </provider>
             </entry>
           </file>
-          <file pinned="false" current-in-tab="true">
+          <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="150">
-                  <caret line="10" column="11" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+                <state relative-caret-position="240">
+                  <caret line="16" column="4" selection-start-line="16" selection-start-column="4" selection-end-line="16" selection-end-column="4" />
                 </state>
               </provider>
             </entry>
@@ -148,8 +144,8 @@
           <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="150">
-                  <caret line="10" column="88" lean-forward="true" selection-start-line="10" selection-start-column="88" selection-end-line="10" selection-end-column="88" />
+                <state relative-caret-position="285">
+                  <caret line="19" column="47" lean-forward="true" selection-start-line="19" selection-start-column="47" selection-end-line="19" selection-end-column="47" />
                 </state>
               </provider>
             </entry>
@@ -157,11 +153,13 @@
           <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="435">
-                  <caret line="29" column="48" selection-start-line="29" selection-start-column="48" selection-end-line="29" selection-end-column="48" />
+                <state relative-caret-position="285">
+                  <caret line="21" column="37" selection-start-line="21" selection-start-column="37" selection-end-line="21" selection-end-column="37" />
                   <folding>
-                    <element signature="e#342#343#0" expanded="true" />
-                    <element signature="e#360#361#0" expanded="true" />
+                    <element signature="e#960#961#0" expanded="true" />
+                    <element signature="e#991#992#0" expanded="true" />
+                    <element signature="e#1041#1042#0" expanded="true" />
+                    <element signature="e#1075#1076#0" expanded="true" />
                   </folding>
                 </state>
               </provider>
@@ -171,59 +169,11 @@
       </split-first>
       <split-second>
         <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="105">
-                  <caret line="7" column="34" lean-forward="true" selection-start-line="7" selection-start-column="34" selection-end-line="7" selection-end-column="34" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="390">
-                  <caret line="26" column="49" selection-start-line="26" selection-start-column="49" selection-end-line="26" selection-end-column="49" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="226">
-                  <caret line="16" column="15" selection-start-line="16" selection-start-column="15" selection-end-line="16" selection-end-column="15" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="221">
-                  <caret line="82" column="33" selection-start-line="82" selection-start-column="33" selection-end-line="82" selection-end-column="33" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java">
+          <file pinned="false" current-in-tab="true">
+            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="107">
-                  <caret line="19" column="50" selection-start-line="19" selection-start-column="50" selection-end-line="19" selection-end-column="50" />
+                <state relative-caret-position="420">
+                  <caret line="28" column="38" selection-start-line="28" selection-start-column="38" selection-end-line="28" selection-end-column="38" />
                   <folding>
                     <element signature="imports" expanded="true" />
                   </folding>
@@ -234,32 +184,8 @@
           <file pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="330">
-                  <caret line="22" column="14" lean-forward="true" selection-start-line="22" selection-start-column="14" selection-end-line="22" selection-end-column="14" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="285">
-                  <caret line="19" column="19" selection-start-line="19" selection-start-column="19" selection-end-line="19" selection-end-column="19" />
-                  <folding>
-                    <element signature="imports" expanded="true" />
-                  </folding>
-                </state>
-              </provider>
-            </entry>
-          </file>
-          <file pinned="false" current-in-tab="true">
-            <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java">
-              <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="405">
-                  <caret line="27" column="9" selection-start-line="27" selection-start-column="9" selection-end-line="27" selection-end-column="9" />
+                <state relative-caret-position="300">
+                  <caret line="20" column="20" selection-start-line="20" selection-start-column="20" selection-end-line="20" selection-end-column="20" />
                   <folding>
                     <element signature="imports" expanded="true" />
                   </folding>
@@ -281,9 +207,11 @@
   <component name="FindInProjectRecents">
     <findStrings>
       <find>personList</find>
+      <find>studList</find>
     </findStrings>
     <replaceStrings>
       <replace>studList</replace>
+      <replace>personList</replace>
     </replaceStrings>
   </component>
   <component name="Git.Settings">
@@ -292,23 +220,23 @@
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java" />
         <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Teacher.java" />
-        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java" />
-        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java" />
         <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Student.java" />
-        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructor.java" />
         <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Person.java" />
-        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java" />
-        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java" />
-        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java" />
-        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java" />
         <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Learner.java" />
-        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java" />
+        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructor.java" />
+        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java" />
+        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java" />
         <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java" />
+        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java" />
         <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java" />
+        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java" />
+        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java" />
+        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java" />
+        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java" />
+        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java" />
         <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java" />
-        <option value="$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java" />
+        <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java" />
         <option value="$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java" />
       </list>
     </option>
@@ -331,7 +259,6 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
-      <pane id="PackagesPane" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -390,13 +317,14 @@
           <select />
         </subPane>
       </pane>
+      <pane id="PackagesPane" />
       <pane id="Scope" />
     </panes>
   </component>
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1541875808839" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1541902403652" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
@@ -418,7 +346,7 @@
     </option>
   </component>
   <component name="RunManager" selected="JUnit.io.zipcoder.interfaces in interfaces-1">
-    <configuration name="TestEducator.testTeach" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="TestPeople" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="interfaces-1" />
       <extension name="coverage">
         <pattern>
@@ -427,14 +355,12 @@
         </pattern>
       </extension>
       <option name="PACKAGE_NAME" value="io.zipcoder.interfaces" />
-      <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.TestEducator" />
-      <option name="METHOD_NAME" value="testTeach" />
-      <option name="TEST_OBJECT" value="method" />
+      <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.TestPeople" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="TestPeople.testGetArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="TestPeople.testRemoveById" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="interfaces-1" />
       <extension name="coverage">
         <pattern>
@@ -444,13 +370,13 @@
       </extension>
       <option name="PACKAGE_NAME" value="io.zipcoder.interfaces" />
       <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.TestPeople" />
-      <option name="METHOD_NAME" value="testGetArray" />
+      <option name="METHOD_NAME" value="testRemoveById" />
       <option name="TEST_OBJECT" value="method" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ZipCodeWilmingtonTest.testHostLectureEducator" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="TestStudents" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="interfaces-1" />
       <extension name="coverage">
         <pattern>
@@ -459,14 +385,12 @@
         </pattern>
       </extension>
       <option name="PACKAGE_NAME" value="io.zipcoder.interfaces" />
-      <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.ZipCodeWilmingtonTest" />
-      <option name="METHOD_NAME" value="testHostLectureEducator" />
-      <option name="TEST_OBJECT" value="method" />
+      <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.TestStudents" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ZipCodeWilmingtonTest.testHostLectureId" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ZipCodeWilmingtonTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="interfaces-1" />
       <extension name="coverage">
         <pattern>
@@ -476,8 +400,6 @@
       </extension>
       <option name="PACKAGE_NAME" value="io.zipcoder.interfaces" />
       <option name="MAIN_CLASS_NAME" value="io.zipcoder.interfaces.ZipCodeWilmingtonTest" />
-      <option name="METHOD_NAME" value="testHostLectureId" />
-      <option name="TEST_OBJECT" value="method" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
@@ -497,19 +419,19 @@
       </method>
     </configuration>
     <list>
-      <item itemvalue="JUnit.TestEducator.testTeach" />
-      <item itemvalue="JUnit.ZipCodeWilmingtonTest.testHostLectureEducator" />
+      <item itemvalue="JUnit.TestStudents" />
+      <item itemvalue="JUnit.ZipCodeWilmingtonTest" />
       <item itemvalue="JUnit.io.zipcoder.interfaces in interfaces-1" />
-      <item itemvalue="JUnit.TestPeople.testGetArray" />
-      <item itemvalue="JUnit.ZipCodeWilmingtonTest.testHostLectureId" />
+      <item itemvalue="JUnit.TestPeople.testRemoveById" />
+      <item itemvalue="JUnit.TestPeople" />
     </list>
     <recent_temporary>
       <list>
         <item itemvalue="JUnit.io.zipcoder.interfaces in interfaces-1" />
-        <item itemvalue="JUnit.ZipCodeWilmingtonTest.testHostLectureId" />
-        <item itemvalue="JUnit.TestPeople.testGetArray" />
-        <item itemvalue="JUnit.ZipCodeWilmingtonTest.testHostLectureEducator" />
-        <item itemvalue="JUnit.TestEducator.testTeach" />
+        <item itemvalue="JUnit.TestPeople" />
+        <item itemvalue="JUnit.TestPeople.testRemoveById" />
+        <item itemvalue="JUnit.ZipCodeWilmingtonTest" />
+        <item itemvalue="JUnit.TestStudents" />
       </list>
     </recent_temporary>
   </component>
@@ -527,50 +449,51 @@
       <workItem from="1541351125257" duration="267000" />
       <workItem from="1541354691063" duration="1817000" />
       <workItem from="1541528487426" duration="493000" />
-      <workItem from="1541599988486" duration="20301000" />
+      <workItem from="1541599988486" duration="20586000" />
+      <workItem from="1541890187320" duration="11930000" />
     </task>
     <servers />
   </component>
   <component name="TestHistory">
-    <history-entry file="ZipCodeWilmingtonTest_testHostLectureEducator - 2018.11.10 at 13h 09m 14s.xml">
-      <configuration name="ZipCodeWilmingtonTest.testHostLectureEducator" configurationId="JUnit" />
+    <history-entry file="TestPeople_testFindById - 2018.11.10 at 20h 55m 55s.xml">
+      <configuration name="TestPeople.testFindById" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ZipCodeWilmingtonTest_testHostLectureEducator - 2018.11.10 at 13h 09m 25s.xml">
-      <configuration name="ZipCodeWilmingtonTest.testHostLectureEducator" configurationId="JUnit" />
+    <history-entry file="TestStudent - 2018.11.10 at 20h 57m 40s.xml">
+      <configuration name="TestStudent" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ZipCodeWilmingtonTest_testHostLectureEducator - 2018.11.10 at 13h 09m 39s.xml">
-      <configuration name="ZipCodeWilmingtonTest.testHostLectureEducator" configurationId="JUnit" />
+    <history-entry file="TestStudents - 2018.11.10 at 20h 58m 26s.xml">
+      <configuration name="TestStudents" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ZipCodeWilmingtonTest_testHostLectureEducator - 2018.11.10 at 13h 09m 57s.xml">
-      <configuration name="ZipCodeWilmingtonTest.testHostLectureEducator" configurationId="JUnit" />
+    <history-entry file="ZipCodeWilmingtonTest - 2018.11.10 at 20h 58m 42s.xml">
+      <configuration name="ZipCodeWilmingtonTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="io_zipcoder_interfaces_in_interfaces-1 - 2018.11.10 at 13h 10m 36s.xml">
+    <history-entry file="io_zipcoder_interfaces_in_interfaces-1 - 2018.11.10 at 20h 58m 50s.xml">
       <configuration name="io.zipcoder.interfaces in interfaces-1" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="TestPeople_testGetArray - 2018.11.10 at 13h 15m 30s.xml">
-      <configuration name="TestPeople.testGetArray" configurationId="JUnit" />
+    <history-entry file="TestPeople_testRemoveById - 2018.11.10 at 21h 01m 43s.xml">
+      <configuration name="TestPeople.testRemoveById" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="TestPeople_testGetArray - 2018.11.10 at 13h 44m 53s.xml">
-      <configuration name="TestPeople.testGetArray" configurationId="JUnit" />
+    <history-entry file="TestPeople_testRemoveById - 2018.11.10 at 21h 02m 13s.xml">
+      <configuration name="TestPeople.testRemoveById" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="TestPeople_testGetArray - 2018.11.10 at 13h 45m 14s.xml">
-      <configuration name="TestPeople.testGetArray" configurationId="JUnit" />
+    <history-entry file="TestPeople_testRemoveById - 2018.11.10 at 21h 02m 40s.xml">
+      <configuration name="TestPeople.testRemoveById" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ZipCodeWilmingtonTest_testHostLectureId - 2018.11.10 at 13h 49m 44s.xml">
-      <configuration name="ZipCodeWilmingtonTest.testHostLectureId" configurationId="JUnit" />
+    <history-entry file="TestPeople - 2018.11.10 at 21h 09m 06s.xml">
+      <configuration name="TestPeople" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="io_zipcoder_interfaces_in_interfaces-1 - 2018.11.10 at 13h 49m 56s.xml">
+    <history-entry file="io_zipcoder_interfaces_in_interfaces-1 - 2018.11.10 at 21h 09m 14s.xml">
       <configuration name="io.zipcoder.interfaces in interfaces-1" configurationId="JUnit" />
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="54870000" />
+    <option name="totallyTimeSpent" value="67085000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="-336" y="-1057" width="1896" height="1042" extended-state="0" />
     <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.10248112" />
+      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.103559874" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info id="Image Layers" order="2" />
       <window_info id="Designer" order="3" />
@@ -579,7 +502,7 @@
       <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 anchor="bottom" id="Run" order="2" weight="0.32947367" />
+      <window_info anchor="bottom" id="Run" order="2" visible="true" weight="0.26842105" />
       <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
@@ -589,7 +512,6 @@
       <window_info anchor="bottom" id="Terminal" order="9" />
       <window_info anchor="bottom" id="Event Log" order="10" side_tool="true" />
       <window_info anchor="bottom" id="Messages" order="11" weight="0.32947367" />
-      <window_info anchor="right" id="Coverage" side_tool="true" weight="0.32955772" />
       <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
       <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
@@ -599,6 +521,7 @@
       <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" />
+      <window_info anchor="right" id="Coverage" order="9" side_tool="true" weight="0.32955772" />
     </layout>
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -619,161 +542,158 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Student.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Learner.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="105">
-          <caret line="7" column="16" selection-start-line="7" selection-start-column="16" selection-end-line="7" selection-end-column="16" />
-          <folding>
-            <element signature="e#146#147#0" expanded="true" />
-            <element signature="e#169#170#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="60">
+          <caret line="4" column="4" selection-start-line="4" selection-start-column="4" selection-end-line="4" selection-end-column="4" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Teacher.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="390">
-          <caret line="26" column="49" selection-start-line="26" selection-start-column="49" selection-end-line="26" selection-end-column="49" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
+        <state relative-caret-position="60">
+          <caret line="4" column="61" selection-start-line="4" selection-start-column="61" selection-end-line="4" selection-end-column="61" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Teacher.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="60">
-          <caret line="4" column="61" selection-start-line="4" selection-start-column="61" selection-end-line="4" selection-end-column="61" />
+        <state relative-caret-position="240">
+          <caret line="16" column="4" selection-start-line="16" selection-start-column="4" selection-end-line="16" selection-end-column="4" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Student.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="105">
-          <caret line="7" column="34" lean-forward="true" selection-start-line="7" selection-start-column="34" selection-end-line="7" selection-end-column="34" />
+          <caret line="7" column="16" selection-start-line="7" selection-start-column="16" selection-end-line="7" selection-end-column="16" />
           <folding>
-            <element signature="imports" expanded="true" />
+            <element signature="e#146#147#0" expanded="true" />
+            <element signature="e#169#170#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructor.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="330">
-          <caret line="22" column="14" lean-forward="true" selection-start-line="22" selection-start-column="14" selection-end-line="22" selection-end-column="14" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
+        <state relative-caret-position="180">
+          <caret line="18" column="5" lean-forward="true" selection-start-line="18" selection-start-column="5" selection-end-line="18" selection-end-column="5" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="226">
-          <caret line="16" column="15" selection-start-line="16" selection-start-column="15" selection-end-line="16" selection-end-column="15" />
+        <state relative-caret-position="285">
+          <caret line="21" column="37" selection-start-line="21" selection-start-column="37" selection-end-line="21" selection-end-column="37" />
           <folding>
-            <element signature="imports" expanded="true" />
+            <element signature="e#960#961#0" expanded="true" />
+            <element signature="e#991#992#0" expanded="true" />
+            <element signature="e#1041#1042#0" expanded="true" />
+            <element signature="e#1075#1076#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="150">
-          <caret line="10" column="11" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+        <state relative-caret-position="285">
+          <caret line="19" column="47" lean-forward="true" selection-start-line="19" selection-start-column="47" selection-end-line="19" selection-end-column="47" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Learner.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Students.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="60">
-          <caret line="4" column="4" selection-start-line="4" selection-start-column="4" selection-end-line="4" selection-end-column="4" />
+        <state relative-caret-position="753">
+          <caret line="57" column="33" selection-start-line="57" selection-start-column="33" selection-end-line="57" selection-end-column="33" />
+          <folding>
+            <element signature="e#2497#2498#0" expanded="true" />
+            <element signature="e#2528#2529#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructor.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="107">
-          <caret line="19" column="50" selection-start-line="19" selection-start-column="50" selection-end-line="19" selection-end-column="50" />
+        <state relative-caret-position="690">
+          <caret line="46" column="59" selection-start-line="46" selection-start-column="59" selection-end-line="46" selection-end-column="59" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructor.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="75">
-          <caret line="8" column="23" selection-start-line="8" selection-start-column="23" selection-end-line="8" selection-end-column="23" />
+        <state relative-caret-position="285">
+          <caret line="19" column="20" lean-forward="true" selection-start-line="19" selection-start-column="20" selection-end-line="19" selection-end-column="20" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/People.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="525">
-          <caret line="35" column="22" selection-start-line="35" selection-start-column="22" selection-end-line="35" selection-end-column="22" />
-          <folding>
-            <element signature="e#170#171#0" expanded="true" />
-            <element signature="e#208#209#0" expanded="true" />
-            <element signature="e#235#236#0" expanded="true" />
-            <element signature="e#280#281#0" expanded="true" />
-            <element signature="e#322#323#0" expanded="true" />
-            <element signature="e#363#364#0" expanded="true" />
-            <element signature="e#1006#1007#0" expanded="true" />
-            <element signature="e#1040#1041#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="390">
+          <caret line="32" selection-start-line="32" selection-end-line="32" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestInstructors.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPerson.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="285">
-          <caret line="19" column="19" selection-start-line="19" selection-start-column="19" selection-end-line="19" selection-end-column="19" />
+        <state relative-caret-position="360">
+          <caret line="24" column="42" selection-start-line="24" selection-start-column="42" selection-end-line="24" selection-end-column="42" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestEducator.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="221">
-          <caret line="82" column="33" selection-start-line="82" selection-start-column="33" selection-end-line="82" selection-end-column="33" />
+        <state relative-caret-position="256">
+          <caret line="23" column="47" selection-start-line="23" selection-start-column="47" selection-end-line="23" selection-end-column="47" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestPeople.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="435">
-          <caret line="29" column="48" selection-start-line="29" selection-start-column="48" selection-end-line="29" selection-end-column="48" />
+        <state relative-caret-position="540">
+          <caret line="38" column="30" selection-start-line="38" selection-start-column="30" selection-end-line="38" selection-end-column="30" />
           <folding>
-            <element signature="e#342#343#0" expanded="true" />
-            <element signature="e#360#361#0" expanded="true" />
+            <element signature="imports" expanded="true" />
+            <marker date="1541902142065" expanded="true" signature="0:1413" ph="..." />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Instructors.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudent.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="150">
-          <caret line="10" column="88" lean-forward="true" selection-start-line="10" selection-start-column="88" selection-end-line="10" selection-end-column="88" />
+        <state relative-caret-position="480">
+          <caret line="32" column="14" lean-forward="true" selection-start-line="32" selection-start-column="14" selection-end-line="32" selection-end-column="14" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/io/zipcoder/interfaces/Educator.java">
+    <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/TestStudents.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="150">
-          <caret line="10" column="11" selection-start-line="10" selection-start-column="11" selection-end-line="10" selection-end-column="11" />
+        <state relative-caret-position="300">
+          <caret line="20" column="20" selection-start-line="20" selection-start-column="20" selection-end-line="20" selection-end-column="20" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="405">
-          <caret line="27" column="9" selection-start-line="27" selection-start-column="9" selection-end-line="27" selection-end-column="9" />
+        <state relative-caret-position="420">
+          <caret line="28" column="38" selection-start-line="28" selection-start-column="38" selection-end-line="28" selection-end-column="38" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>

src/main/java/io/zipcoder/interfaces/Instructors.java

@@ -4,15 +4,21 @@ import java.util.ArrayList;
 
 public class Instructors extends People<Instructor> {
     private static final Instructors INSTANCE = new Instructors();
-    public ArrayList<Instructor> instructorList;
     private Instructors(){
-        instructorList = new ArrayList<>();
         for(Educator eds : Educator.values()){
             final Instructor instructor = new Instructor(eds.getName(), eds.getIdNum());
-            instructorList.add(instructor);
+            personList.add(instructor);
         }
     }
 
     public static Instructors getInstance(){ return INSTANCE; }
 
+    @Override
+    public Instructor[] getArray(){
+        Instructor[] instructors = new Instructor[personList.size()];
+        for(int i = 0; i < personList.size(); i++)
+            instructors[i] = personList.get(i);
+        return instructors;
+    }
+
 }

src/main/java/io/zipcoder/interfaces/People.java

@@ -29,12 +29,8 @@ public abstract class People <E extends Person>{
         }
         return null;
     }
-    public ArrayList<E> getArray(){
-       ArrayList<E> arrList = new ArrayList<>();
-       for(E elmt : personList)
-           arrList.add(elmt);
-       return arrList;
-    }
+    public abstract E[] getArray();
+
     public void removeAll(){
         personList.clear();
     }

src/main/java/io/zipcoder/interfaces/Students.java

@@ -4,53 +4,58 @@ import java.util.*;
 public class Students extends People <Student> {
 
     private static final Students INSTANCE = new Students();
-    public ArrayList<Student> studList;
     private Students(){
-        studList = new ArrayList<>();
 
-        studList.add(new Student( "Ned Redmond",1));
-        studList.add(new Student( "Seth Abrams",2));
-        studList.add(new Student( "Akeem Cherry",3));
-        studList.add(new Student( "Whitney Martinez",4));
-        studList.add(new Student( "Nira Parikh",5));
-        studList.add(new Student( "Connor Dunnigan",6));
-        studList.add(new Student( "Christian Sheridan",7));
-        studList.add(new Student( "Curtis Cook",8));
-        studList.add(new Student( "Nuridalia Hernandez",9));
-        studList.add(new Student( "Brandon DeFrancis",10));
-        studList.add(new Student( "De'Jon Johnson",11));
-        studList.add(new Student( "Demetrius Murray",12));
-        studList.add(new Student( "Elliott Stansbury",13));
-        studList.add(new Student( "Nathan Hall",14));
-        studList.add(new Student( "Jae Joson",15));
-        studList.add(new Student( "Jacob Anderson",16));
-        studList.add(new Student( "Jose Bedolla",17));
-        studList.add(new Student( "Jenn Chao",18));
-        studList.add(new Student( "Jennifer Tinkler",19));
-        studList.add(new Student( "Jonathan Hinds",20));
-        studList.add(new Student( "Jay Samuels",21));
-        studList.add(new Student( "Jevit Tith",22));
-        studList.add(new Student( "Lauren Green",23));
-        studList.add(new Student( "Kate Moore",24));
-        studList.add(new Student( "Michelle DiMarino",25));
-        studList.add(new Student( "Maggie Pierse",26));
-        studList.add(new Student( "Nick Satinover",27));
-        studList.add(new Student( "Chaitali Patel",28));
-        studList.add(new Student( "Yesoda Sanka",29));
-        studList.add(new Student( "Saurav Kamath",30));
-        studList.add(new Student( "Sam Bhutani",31));
-        studList.add(new Student( "Soujanya Buragapu",32));
-        studList.add(new Student( "Steffon Williams",33));
-        studList.add(new Student( "Zavon Malone",34));
-        studList.add(new Student( "Thuy Kong",35));
-        studList.add(new Student( "Thulasi Puppala",36));
-        studList.add(new Student( "Trinh Tong",37));
-        studList.add(new Student( "William Brown",38));
-        studList.add(new Student( "Xzavia Cuello",39));
+        personList.add(new Student( "Ned Redmond",1));
+        personList.add(new Student( "Seth Abrams",2));
+        personList.add(new Student( "Akeem Cherry",3));
+        personList.add(new Student( "Whitney Martinez",4));
+        personList.add(new Student( "Nira Parikh",5));
+        personList.add(new Student( "Connor Dunnigan",6));
+        personList.add(new Student( "Christian Sheridan",7));
+        personList.add(new Student( "Curtis Cook",8));
+        personList.add(new Student( "Nuridalia Hernandez",9));
+        personList.add(new Student( "Brandon DeFrancis",10));
+        personList.add(new Student( "De'Jon Johnson",11));
+        personList.add(new Student( "Demetrius Murray",12));
+        personList.add(new Student( "Elliott Stansbury",13));
+        personList.add(new Student( "Nathan Hall",14));
+        personList.add(new Student( "Jae Joson",15));
+        personList.add(new Student( "Jacob Anderson",16));
+        personList.add(new Student( "Jose Bedolla",17));
+        personList.add(new Student( "Jenn Chao",18));
+        personList.add(new Student( "Jennifer Tinkler",19));
+        personList.add(new Student( "Jonathan Hinds",20));
+        personList.add(new Student( "Jay Samuels",21));
+        personList.add(new Student( "Jevit Tith",22));
+        personList.add(new Student( "Lauren Green",23));
+        personList.add(new Student( "Kate Moore",24));
+        personList.add(new Student( "Michelle DiMarino",25));
+        personList.add(new Student( "Maggie Pierse",26));
+        personList.add(new Student( "Nick Satinover",27));
+        personList.add(new Student( "Chaitali Patel",28));
+        personList.add(new Student( "Yesoda Sanka",29));
+        personList.add(new Student( "Saurav Kamath",30));
+        personList.add(new Student( "Sam Bhutani",31));
+        personList.add(new Student( "Soujanya Buragapu",32));
+        personList.add(new Student( "Steffon Williams",33));
+        personList.add(new Student( "Zavon Malone",34));
+        personList.add(new Student( "Thuy Kong",35));
+        personList.add(new Student( "Thulasi Puppala",36));
+        personList.add(new Student( "Trinh Tong",37));
+        personList.add(new Student( "William Brown",38));
+        personList.add(new Student( "Xzavia Cuello",39));
     }
 
     public static Students getInstance(){
         return INSTANCE;
     }
 
+    @Override
+    public Student[] getArray(){
+        Student[] studs = new Student[personList.size()];
+        for(int i = 0; i < personList.size(); i++)
+            studs[i] = personList.get(i);
+        return studs;
+    }
 }

src/main/java/io/zipcoder/interfaces/ZipCodeWilmington.java

@@ -4,29 +4,32 @@ import java.util.ArrayList;
 
 public class ZipCodeWilmington {
 
-    Students students = Students.getInstance();
-    Instructors instructors = Instructors.getInstance();
+    private static final Students students = Students.getInstance();
+    private static final Instructors instructors = Instructors.getInstance();
     private static final ZipCodeWilmington INSTANCE = new ZipCodeWilmington();
 
-    ArrayList<Student> list = students.studList;
-
     private ZipCodeWilmington(){}
 
     public static ZipCodeWilmington getInstance(){
         return INSTANCE;
     }
     public void hostLecture(Teacher teacher, double numberOfHours){
-        Learner[] studs = list.toArray(new Learner[list.size()]);
+        Student[] studs = students.getArray();
         teacher.lecture(studs, numberOfHours);
     }
     public void hostLecture(long id, double numberOfHours){
-        Instructor instructor = null;
-        for(Instructor elmt : instructors.instructorList) {
-            if (elmt.getId() == id)
-                instructor = elmt;
+        for (int i = 0; i < instructors.getCount(); i++) {
+            if(instructors.personList.get(i).getId() == id) {
+                instructors.personList.get(i).lecture(students.getArray(), numberOfHours);
+            }
         }
+    }
+
+    public static Students getStudents() {
+        return students;
+    }
 
-        Learner[] studs = list.toArray(new Learner[list.size()]);
-        instructor.lecture(studs, numberOfHours);
+    public static Instructors getInstructors() {
+        return instructors;
     }
 }

src/test/java/io/zipcoder/interfaces/TestEducator.java

@@ -17,14 +17,11 @@ public class TestEducator {
     public void testTeach(){
         //Given
         Student stud1 = new Student("newStud1",1);
-        Student stud2 = new Student("newStud1",2);
-
         //When
         Educator.NHU.setTimeWorked(0);
         Educator.NHU.teach(stud1, 2);
         double exp = 2;
         double act = stud1.getTotalStudyTime();
-
         //Then
         Assert.assertEquals(exp,act,.1);
     }

src/test/java/io/zipcoder/interfaces/TestInstructor.java

@@ -4,6 +4,17 @@ import org.junit.Test;
 
 public class TestInstructor {
 
+    Instructor instructor;
+    Student stud1, stud2;
+    Student[] studs;
+
+    public TestInstructor(){
+        instructor = new Instructor("Kris",1);
+        stud1 = new Student("Connor",5);
+        stud2 = new Student("Christian",6);
+        studs = new Student[]{stud1,stud2};
+    }
+
     @Test
     public void testImplementation(){
         //Given
@@ -22,30 +33,17 @@ public class TestInstructor {
 
     @Test
     public void testTeach(){
-        //Given
-        Instructor instructor = new Instructor();
-        Student student = new Student("student",1);
         //When
-        instructor.teach(student, 12);
-        double expNumHours = 12;
-        double actNumHours = student.getTotalStudyTime();
+        instructor.teach(stud1,20);
         //Then
-        Assert.assertEquals(expNumHours,actNumHours,.001);
+        Assert.assertEquals(20,stud1.getTotalStudyTime(),.1);
     }
 
     @Test
     public void testLecture(){
-        //Given
-        Instructor instructor = new Instructor();
-        Student student = new Student("student",1);
-        Student student2 = new Student("student",1);
-        Student student3 = new Student("student",1);
         //When
-        Student[] arr = {student, student2,student3};
-        instructor.lecture(arr, 12);
-        double expNumHours = 4;
-        double actNumHours = student.getTotalStudyTime();
+        instructor.lecture(studs,20);
         //Then
-        Assert.assertEquals(expNumHours,actNumHours,.001);
+        Assert.assertEquals(10,stud1.getTotalStudyTime(),.1);
     }
 }

src/test/java/io/zipcoder/interfaces/TestInstructors.java

@@ -18,7 +18,7 @@ public class TestInstructors {
         Instructors instructor1 = Instructors.getInstance();
         //When
         int exp = 7;
-        int act = instructor1.instructorList.size();
+        int act = instructor1.getArray().length;
         //Then
         Assert.assertEquals(exp,act);
     }

src/test/java/io/zipcoder/interfaces/TestPeople.java

@@ -2,112 +2,59 @@ package io.zipcoder.interfaces;
 import org.junit.Assert;
 import org.junit.Test;
 
-import java.util.ArrayList;
-
 public class TestPeople {
 
+    Person person1, person2;
+    Student stud1;
+    Instructor instructor;
+    Instructors instructors;
+    Students students;
+
+    public TestPeople(){
+        students = Students.getInstance();
+        instructors = Instructors.getInstance();
+        person1 = new Person(333,"person1");
+        person2 = new Person(444,"person2");
+        stud1 = new Student("stud1",555);
+        instructor = new Instructor("Melanie",999);
+        students.add(stud1);
+    }
+
     @Test
     public void testAdd(){
-        //Given
-        People peepList = new People(){};
-        Person person1 = new Person();
-        Person person2 = new Person();
-        //When
-        peepList.add(person1);
-        peepList.add(person2);
-        int expSize = 2;
-        int actSize = peepList.getCount();
-        //Then
-        Assert.assertEquals(expSize,actSize);
+        Assert.assertEquals(40,students.getCount());
     }
 
     @Test
     public void testRemoveByPerson(){
-        //Given
-        People peepList = new People(){};
-        Person person1 = new Person();
-        Person person2 = new Person();
-        Person person3 = new Person();
-        //When
-        peepList.add(person1);
-        peepList.add(person2);
-        peepList.add(person3);
-        peepList.removeByPerson(person2);
-        int expSize = 2;
-        int actSize = peepList.getCount();
-        //Then
-        Assert.assertEquals(expSize,actSize);
+        students.removeByPerson(stud1);
+        Assert.assertEquals(39,students.getCount());
     }
 
     @Test
     public void testRemoveById(){
-        People peepList = new People(){};
-        Person person1 = new Person(1,"name1");
-        Person person2 = new Person(2,"name2");
-        Person person3 = new Person(3,"name3");
         //When
-        peepList.add(person1);
-        peepList.add(person2);
-        peepList.add(person3);
-        peepList.removeById(2);
-        int expSize = 2;
-        int actSize = peepList.getCount();
+        students.removeById(555);
         //Then
-        Assert.assertEquals(expSize,actSize);
+        Assert.assertEquals(40,students.getCount());
     }
 
     @Test
     public void testFindById(){
-        People peepList = new People(){};
-        Person person1 = new Person(1,"name1");
-        Person person2 = new Person(2,"name2");
-        Person person3 = new Person(3,"name3");
         //When
-        peepList.add(person1);
-        peepList.add(person2);
-        peepList.add(person3);
-        String expName = "name2";
-        String actName = peepList.findById(2).getName();
+        Student exp = students.findById(555);
         //Then
-        Assert.assertEquals(expName,actName);
+        Assert.assertEquals(exp.getId(),stud1.getId());
 
     }
 
     @Test
-    public void testGetArray(){
-        //Given
-        People peepList = new People(){};
-        Instructor instructor = new Instructor( "Kris",1);
-        Student stud1 = new Student( "Stud1",1);
-        Student stud2 = new Student("Stud2",2);
-        peepList.add(instructor);
-        peepList.add(stud1);
-        peepList.add(stud2);
-        //Then
-        ArrayList<Person> exp = new ArrayList<>();
-        exp.add(instructor);
-        exp.add(stud1);
-        exp.add(stud2);
-        ArrayList<Person> act = peepList.getArray();
-        //Then
-        Assert.assertEquals(exp,act);
-    }
-
-    @Test
     public void testRemoveAll(){
-        People peepList = new People(){};
-        Person person1 = new Person(1,"name1");
-        Person person2 = new Person(2,"name2");
-        Person person3 = new Person(3,"name3");
+        //Given
+        Instructors instructors = Instructors.getInstance();
         //When
-        peepList.add(person1);
-        peepList.add(person2);
-        peepList.add(person3);
-        peepList.removeAll();
-        int exp = 0;
-        int act = peepList.getCount();
+        instructors.removeAll();
         //Then
-
-        Assert.assertEquals(exp,act);
+        Assert.assertEquals(0,instructors.getCount());
     }
 }

src/test/java/io/zipcoder/interfaces/TestPerson.java

@@ -8,11 +8,9 @@ public class TestPerson {
     public void testConstructor(){
         //Given
         Person person = new Person(1234);
-
         //When
         long expID = 1234;
         long actID = person.getId();
-
         //Then
         Assert.assertEquals(expID,actID);
     }
@@ -21,12 +19,10 @@ public class TestPerson {
     public void testSetAndGetName(){
         //Given
         Person person = new Person(1234);
-
         //When
         String name = "Joe";
         person.setName(name);
         String actName = person.getName();
-
         //Then
         Assert.assertEquals("Joe",actName);
     }

src/test/java/io/zipcoder/interfaces/TestStudent.java

@@ -4,32 +4,32 @@ import org.junit.Test;
 import org.junit.Assert;
 
 public class TestStudent {
+    Student stud;
 
     @Test
     public void testImplementation(){
         //Given
-        Student student = new Student("student",1);
+        stud = new Student("student",1);
         //Then
-        Assert.assertTrue(student instanceof Learner);
+        Assert.assertTrue(stud instanceof Learner);
     }
 
     @Test
     public void testInheritance(){
         //Given
-        Student student = new Student("student",1);
+        stud = new Student("student",1);
         //Then
-        Assert.assertTrue(student instanceof Person);
+        Assert.assertTrue(stud instanceof Person);
     }
 
     @Test
     public void testLearn(){
         //Given
-        Student student = new Student("student",1);
+        stud = new Student("student",1);
         //When
-        student.learn(5);
-
+        stud.learn(5);
         double expStudyTime = 5;
-        double actStudyTime = student.getTotalStudyTime();
+        double actStudyTime = stud.getTotalStudyTime();
         //Then
         Assert.assertEquals(expStudyTime, actStudyTime,.001);
     }

src/test/java/io/zipcoder/interfaces/TestStudents.java

@@ -18,8 +18,8 @@ public class TestStudents {
         //Given
         Students instance1 = Students.getInstance();
         //When
-        int exp = 39;
-        int act = instance1.studList.size();
+        int exp = 41;
+        int act = instance1.getArray().length;
         //Then
         Assert.assertEquals(exp,act);
     }

src/test/java/io/zipcoder/interfaces/ZipCodeWilmingtonTest.java

@@ -3,52 +3,29 @@ import org.junit.Assert;
 import org.junit.Test;
 
 public class ZipCodeWilmingtonTest {
-
-    @Test
-    public void testHostLecture(){
-        //Given
-        ZipCodeWilmington zip = ZipCodeWilmington.getInstance();
-        Instructor instructor = new Instructor("Kris", 1);
-        Student connor = zip.students.studList.get(5);
-
-        //When
-        double hours = connor.getTotalStudyTime();
-        zip.hostLecture(instructor,40);
-        double exp = 1;
-        double act = connor.getTotalStudyTime() - hours;
-
-        //Then
-        Assert.assertEquals(exp,act,.1);
-    }
-
     @Test
     public void testHostLectureId(){
         //Given
         ZipCodeWilmington zip = ZipCodeWilmington.getInstance();
-       // Instructor instructor = new Instructor(Educator.KRIS.getName(),Educator.KRIS.getIdNum());
-        Student connor = zip.students.studList.get(5);
-
+        Educator Kris = Educator.KRIS;
         //When
-        double hours = connor.getTotalStudyTime();
-        zip.hostLecture(100,40);
-        double exp = 1;
-        double act = connor.getTotalStudyTime() - hours;
-
+        zip.hostLecture(Kris.getIdNum(),39);
+        double exp = 0;
+        double act = zip.getStudents().getArray()[0].getTotalStudyTime();
         //Then
-        Assert.assertEquals(exp,act,.1);
+        Assert.assertEquals(exp,act,.05);
     }
 
     @Test
-    public void testHostLectureEducator() {
+    public void testHostLecture() {
         //Given
         ZipCodeWilmington zip = ZipCodeWilmington.getInstance();
-        Student connor = zip.students.studList.get(5);
-        double ogHours = connor.getTotalStudyTime();
+        Educator Kris = Educator.KRIS;
         //When
-        zip.hostLecture(Educator.NHU,40);
+        zip.hostLecture(Kris,39);
         double exp = 1;
-        double act = connor.getTotalStudyTime() - ogHours;
+        double act = zip.getStudents().getArray()[0].getTotalStudyTime();
         //Then
-        Assert.assertEquals(exp,act,.05);
+        Assert.assertEquals(exp,act,.1);
     }
 }