done to part 10

.idea/.name

@@ -0,0 +1 @@
+interfaces-1

.idea/compiler.xml

@@ -0,0 +1,16 @@
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+<project version="4">
+  <component name="CompilerConfiguration">
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+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="interfaces-1" />
+      </profile>
+    </annotationProcessing>
+    <bytecodeTargetLevel>
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+    </bytecodeTargetLevel>
+  </component>
+</project>

.idea/encodings.xml

@@ -0,0 +1,6 @@
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+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$" charset="UTF-8" />
+  </component>
+</project>

.idea/libraries/Maven__junit_junit_4_12.xml

@@ -0,0 +1,13 @@
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+    <CLASSES>
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+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12-javadoc.jar!/" />
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+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12-sources.jar!/" />
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+</component>

.idea/libraries/Maven__org_hamcrest_hamcrest_core_1_3.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.hamcrest:hamcrest-core:1.3">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
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+    <JAVADOC>
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+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3-sources.jar!/" />
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.idea/misc.xml

@@ -0,0 +1,13 @@
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+<project version="4">
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
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+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/classes" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/interfaces-1.iml" filepath="$PROJECT_DIR$/interfaces-1.iml" />
+    </modules>
+  </component>
+</project>

.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
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.idea/vcs.xml

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+    <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="285">
+          <caret line="19" selection-start-line="19" selection-end-line="19" />
+        </state>
+      </provider>
+    </entry>
+  </component>
+  <component name="masterDetails">
+    <states>
+      <state key="ProjectJDKs.UI">
+        <settings>
+          <last-edited>1.8</last-edited>
+          <splitter-proportions>
+            <option name="proportions">
+              <list>
+                <option value="0.2" />
+              </list>
+            </option>
+          </splitter-proportions>
+        </settings>
+      </state>
+    </states>
+  </component>
+</project>

interfaces-1.iml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+  </component>
+</module>

pom.xml

@@ -5,6 +5,18 @@
   <groupId>io.zipcoder</groupId>
   <artifactId>interfaces-1</artifactId>
   <version>0.0.1-SNAPSHOT</version>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <source>8</source>
+          <target>8</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
   <packaging>jar</packaging>
 
   <name>interfaces-1</name>

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

@@ -0,0 +1,22 @@
+package io.zipcoder.interfaces;
+
+public class Instructor extends Person implements Teacher {
+
+
+    public Instructor(long id, String name) {
+        super(id, name);
+    }
+
+
+
+    public void teach(Learner learn, double numberOfHours) {
+        learn.learn(numberOfHours);
+
+
+    }
+
+    public void lecture(Learner[] learners, double numberOfHours) {
+        double numberOfHoursPerLearner= numberOfHours/learners.length;
+
+    }
+}

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

@@ -0,0 +1,30 @@
+package io.zipcoder.interfaces;
+
+public final class Instructors extends People<Instructor> {
+
+    private final static Instructors INSTANCE = new Instructors();
+
+    private Instructors(){
+        personList.add(new Instructor(100, "Kris Younger"));
+        personList.add(new Instructor(101, "Nhu Nguyen"));
+        personList.add(new Instructor(102, "Froilan Miranda"));
+        personList.add(new Instructor(103, "L. Dolio Durant"));
+        personList.add(new Instructor(104, "Wilhem Alcivar"));
+    }
+
+    public static Instructors getINSTANCE() {
+        return INSTANCE;
+    }
+
+    @Override
+    public Instructor[] getArray() {
+        Instructor [] instructors = new  Instructor[personList.size()];
+        int count =0;
+        for (Instructor instructor : personList) {
+            instructors[count]=instructor;
+            count++;
+
+        }
+        return instructors;
+    }
+}

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

@@ -0,0 +1,6 @@
+package io.zipcoder.interfaces;
+
+public interface Learner {
+    public void learn (double numberOfHours);
+
+}

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

@@ -0,0 +1,70 @@
+package io.zipcoder.interfaces;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class  People <E extends Person>  {
+
+     List <E> personList= new ArrayList<E>();
+
+
+
+    public void add(E person){
+        personList.add(person);
+    }
+    public E findById (long id){
+       E person = null;
+        for (E p  :personList) {
+            if( p.getId()==id ){
+                person = p;
+            }
+
+
+        }
+
+ return person;
+    }
+
+    public void remove(E person) {
+        for (E p : personList) {
+            if (p.equals(person)) {
+                personList.remove(p);
+                break;
+
+            }
+
+        }
+
+    }
+
+
+    public void removeById(long id){
+        for (Person p:personList) {
+            if (p.getId() ==id){
+                    personList.remove(p);
+                    break;
+            }
+        }
+     }
+
+
+    public int getCount(){
+        return personList.size();
+    }
+    public abstract E[] getArray();
+
+//    public  Person [] getArray(){
+//
+//        return personList.toArray( Person []::new);
+//
+//        }
+
+        public void removeAll(){
+          personList.clear();
+
+
+        }
+
+
+}

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

@@ -1,5 +1,25 @@
 package io.zipcoder.interfaces;
 
 public class Person {
+    final long id;
+    private String name;
 
-}
+    public Person(long id, String name) {
+        this.id = id;
+        this.name= name;
+    }
+
+
+    public long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+}

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

@@ -0,0 +1,23 @@
+package io.zipcoder.interfaces;
+
+public class Student extends  Person implements Learner {
+double totalStudyTime;
+
+    public Student(long id, String name) {
+        super(id, name);
+    }
+
+
+    public void learn(double numberOfHours) {
+        totalStudyTime+=numberOfHours;
+
+    }
+
+    public double getTotalStudyTime() {
+        return totalStudyTime;
+    }
+
+    public void setTotalStudyTime(double totalStudyTime) {
+        this.totalStudyTime = totalStudyTime;
+    }
+}

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

@@ -0,0 +1,69 @@
+package io.zipcoder.interfaces;
+
+public final class Students extends People<Student>{
+   private final static Students INSTANCE = new Students();
+
+   private Students(){
+       personList.add(new Student(1, "Ned Redmond"));
+       personList.add(new Student(2, "Seth Abrams"));
+       personList.add(new Student(3, "Akeem Cherry"));
+       personList.add(new Student(4, "Whitney Martinez"));
+       personList.add(new Student(5, "Nira Parikh"));
+       personList.add(new Student(6, "Connor Dunnigan"));
+       personList.add(new Student(7, "Christian Sheridan"));
+       personList.add(new Student(8, "Curtis Cook"));
+       personList.add(new Student(9, "Nuridalia Hernandez"));
+       personList.add(new Student(10, "Brandon DeFrancis"));
+       personList.add(new Student(11, "De'Jon Johnson"));
+       personList.add(new Student(12, "Demetrius Murray"));
+       personList.add(new Student(13, "Elliott Stansbury"));
+       personList.add(new Student(14, "Nathan Hall"));
+       personList.add(new Student(15, "Jae Joson"));
+       personList.add(new Student(16, "Jacob Anderson"));
+       personList.add(new Student(17, "Jose Bedolla"));
+       personList.add(new Student(18, "Jenn Chao"));
+       personList.add(new Student(19, "Jennifer Tinkler"));
+       personList.add(new Student(20, "Jonathan Hinds"));
+       personList.add(new Student(21, "Jay Samuels"));
+       personList.add(new Student(22, "Jevit Tith"));
+       personList.add(new Student(23, "Lauren Green"));
+       personList.add(new Student(24, "Kate Moore"));
+       personList.add(new Student(25, "Michelle DiMarino"));
+       personList.add(new Student(26, "Maggie Pierse"));
+       personList.add(new Student(27, "Nick Satinover"));
+       personList.add(new Student(28, "Chaitali Patel"));
+       personList.add(new Student(29, "Yesoda Sanka"));
+       personList.add(new Student(30, "Saurav Kamath"));
+       personList.add(new Student(31, "Sam Bhutani"));
+       personList.add(new Student(32, "Soujanya Buragapu"));
+       personList.add(new Student(33, "Steffon Williams"));
+       personList.add(new Student(34, "Zavon Malone"));
+       personList.add(new Student(35, "Thuy Kong"));
+       personList.add(new Student(36, "Thulasi Puppala"));
+       personList.add(new Student(37, "Trinh Tong"));
+       personList.add(new Student(38, "William Brown"));
+       personList.add(new Student(39, "Xzavia Cuello"));
+
+
+
+
+   }
+
+    public static Students getINSTANCE() {
+        return INSTANCE;
+    }
+
+    @Override
+    public Student[] getArray() {
+       Student [] students = new Student[personList.size()];
+       int count =0;
+        for (Student student : personList) {
+            students[count] = student;
+            count ++;
+
+        }
+        return students;
+        //return personList.toArray( Student []::new);
+
+    }
+}

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

@@ -0,0 +1,7 @@
+package io.zipcoder.interfaces;
+
+public interface Teacher {
+
+    public void teach (Learner learn, double numberOfHours);
+    public void lecture (Learner [] learners, double numberOfHours);
+}

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

@@ -0,0 +1,22 @@
+package io.zipcoder.interfaces;
+
+public final class ZipCodeWilmington {
+    Students students= Students.getINSTANCE();
+    Instructors instructors = Instructors.getINSTANCE();
+
+    public void hostLecture(Teacher teacher, double numberOfHours){
+        Student [] studentArray = students.getArray();
+        teacher.lecture(studentArray, numberOfHours);
+
+
+
+    }
+    public void hostLecture(long id, double numberOfHOurs){
+        Student [] studentArray = students.getArray();
+        Teacher teacher = instructors.findById(id);
+        teacher.lecture(studentArray,numberOfHOurs);
+
+    }
+
+
+}

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

@@ -0,0 +1,56 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestInstructor {
+    Instructor instructor = new Instructor(1, "Kenpachi");
+    Student student = new Student(1, "Ronald");
+    Student student1 = new Student(2, "Ronald");
+    Student student2 = new Student(3, "Ronald");
+    Student student3 = new Student(4, "Ronald");
+
+    Student [] students = new Student[] {student,student1,student2,student3 };
+
+
+
+@Test
+    public void testInheritance (){
+        Assert.assertTrue(instructor instanceof Person);
+
+    }
+    @Test
+    public void testTeach(){
+         student.setTotalStudyTime (2.0);
+         instructor.teach(student, 50);
+         double expected = 52.0;
+
+         double actual = student.getTotalStudyTime();
+         Assert.assertEquals(expected, actual, 0.01);
+
+
+
+
+    }
+    @Test
+    public void  testLecture(){
+        double numbersOfHours =  50;
+
+        instructor.lecture(students, numbersOfHours);
+        double expected = 10;
+
+        for ( Student s:students) {
+              instructor.teach(s, numbersOfHours);
+
+        }
+
+     //Assert.assertEquals(expected, .getTotalStudyTime());
+
+    }
+
+
+
+
+
+}

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

@@ -0,0 +1,26 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestInstructors {
+    @Test
+    public void testHasAllStudents(){
+        Instructors instructors = Instructors.getINSTANCE();
+        Person [] instructorArray = instructors.getArray();
+
+        int actual = instructorArray.length;
+        int expected = 5;
+
+        Assert.assertEquals(expected, actual);
+
+
+    }
+
+    @Test
+    public void testSingletonInstance(){
+        Instructors instructors = Instructors.getINSTANCE();
+        Instructors instructors2 = Instructors.getINSTANCE();
+        Assert.assertSame(instructors,instructors2);
+    }
+}

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

@@ -0,0 +1,19 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Test;
+
+public class TestPeople  {
+
+    Student student = new Student(1,"Itchigo");
+
+
+
+    @Test
+    public void testAdd(){
+
+
+
+
+    }
+
+}

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

@@ -1,5 +1,30 @@
 package io.zipcoder.interfaces;
 
+import org.junit.Assert;
+import org.junit.Test;
+
 public class TestPerson {
+    Person person = new Person(1, "Sailor Moon");
+    @Test
+    public void testConstructor(){
+        long expected = 1;
+        long actual = person.getId();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testSetNAME (){
+        //GIVEN
+        String expected = " Itchigo";
+        //WHEN
+        person.setName(expected);
+        //THEN
+        Assert.assertEquals(expected, person.getName());
+    }
+
+
+
+
+
 
 }

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

@@ -0,0 +1,29 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestStudent {
+    Student student = new Student(1,"Sailor Moon" );
+    @Test
+     public void testImplementation (){
+        Assert.assertTrue(student instanceof  Learner);
+
+    }
+
+    @Test
+        public void testInheritance(){
+        Assert.assertTrue(student instanceof Person);
+    }
+    @Test
+    public void testLearn(){
+        double numbersOfHour= 500;
+        double expected = 500;
+        student.learn(numbersOfHour);
+        Assert.assertEquals(expected, student.getTotalStudyTime(), 0.0);
+
+    }
+
+
+
+}

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

@@ -0,0 +1,24 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestZipCodeWilmington {
+    ZipCodeWilmington zcw = new ZipCodeWilmington();
+    Student student = new Student(1, "Itchigo")
+
+//    @Test
+//    public void testTeach(){
+//        student.setTotalStudyTime (2.0);
+//        zcw.hostLecture(student, 50);
+//        double expected = 52.0;
+//
+//        double actual = student.getTotalStudyTime();
+//        Assert.assertEquals(expected, actual, 0.01);
+//
+
+
+
+    }
+
+}

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

@@ -0,0 +1,29 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class testStudents {
+
+    @Test
+    public void testHasAllStudents(){
+        Students students = Students.getINSTANCE();
+        Person [] studentArray = students.getArray();
+
+        int actual = studentArray.length;
+        int expected = 39;
+
+        Assert.assertEquals(expected, actual);
+
+
+    }
+
+    @Test
+    public void testSingletonInstance(){
+        Students students = Students.getINSTANCE();
+        Students students1 = Students.getINSTANCE();
+        Assert.assertSame(students,students1);
+    }
+
+
+}