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interfaces-1.iml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
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+  <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>

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

@@ -0,0 +1,50 @@
+package io.zipcoder.interfaces;
+
+public enum Educator implements Teacher {
+
+    KRIS(1, "Kris Younger"),
+    DOLIO(2, "Dolio Durant"),
+    FROILAN(3, "Froilan Miranda"),
+    NHU(4, "Nhu Ngyuen"),
+    WILHEM(5, "Wilhem Alcivar"),
+    DOMINIQUE(6, "Dominique Clark"),
+    LEON(7, "Leon Hunter");
+
+    private double timeWorked;
+    private long id;
+    private String name;
+
+    Educator(long id, String name) {
+        this.id = id;
+        this.name = name;
+        this.timeWorked = 0;
+
+    }
+
+    public double getTimeWorked() {
+        return timeWorked;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void teach(Learner student, double numberOfHours) {
+
+        student.learn(numberOfHours);
+        timeWorked += numberOfHours;
+    }
+
+    public void lecture(Learner[] students, double numberOfHours) {
+        double numberOfHoursPerLearner = numberOfHours / students.length;
+
+        for (Learner pupil : students) {
+            pupil.learn(numberOfHoursPerLearner);
+        }
+        timeWorked += numberOfHours;
+    }
+}

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

@@ -0,0 +1,24 @@
+package io.zipcoder.interfaces;
+
+public class Instructor extends Person implements Teacher {
+
+
+    public Instructor(long id, String name) {
+        super(id, name);
+    }
+
+
+    public void teach(Learner student, double numberOfHours) {
+
+        student.learn(numberOfHours);
+    }
+
+    public void lecture(Learner[] students, double numberOfHours) {
+        double numberOfHoursPerLearner = numberOfHours/students.length;
+
+        for (Learner pupil : students) {
+            pupil.learn(numberOfHoursPerLearner);
+        }
+
+    }
+}

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

@@ -0,0 +1,29 @@
+package io.zipcoder.interfaces;
+
+
+public final class Instructors extends People <Instructor>{
+    private static final Instructors INSTANCE = new Instructors();
+
+    private Instructors(){
+        for (Educator each:Educator.values()) {
+            final Instructor instructor = new Instructor(each.getId(), each.getName());
+            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/Learner.java

@@ -0,0 +1,8 @@
+package io.zipcoder.interfaces;
+
+public interface Learner {
+
+    public void learn(double numberOfHours);
+
+    double getTotalStudyTime();
+}

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

@@ -0,0 +1,48 @@
+package io.zipcoder.interfaces;
+
+import java.util.ArrayList;
+
+
+public abstract class People<T extends Person>{
+    ArrayList<T> personList = new ArrayList<>();
+
+    public People() {
+        //this.personList;
+    }
+
+    public void add(T person) {
+
+        personList.add(person);
+    }
+
+    public int getCount() {
+
+        return personList.size();
+    }
+
+    public void remove(T person) {
+
+        personList.remove(person);
+    }
+
+    public void remove(long id) {
+
+       personList.removeIf(Person -> Person.getId() == id);
+    }
+
+    public T  findById(long id) {
+        T retrieved = null;
+        for (T people: personList) {
+            if (people.getId() == id){
+                retrieved = people;
+            }
+        }
+        return retrieved;
+    }
+
+    public abstract T[] getArray();
+
+    public void removeAll() {
+        personList.clear();
+    }
+}

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

@@ -2,4 +2,23 @@ package io.zipcoder.interfaces;
 
 public class Person {
 
+    private 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 +1,20 @@
+package io.zipcoder.interfaces;
+
+public class Student extends Person implements Learner {
+    private double totalStudyTime;
+
+    public Student(long id, String name) {
+        super(id, name);
+        this.totalStudyTime = 0;
+    }
+
+    public void learn(double numberOfHours) {
+
+        totalStudyTime += numberOfHours;
+    }
+
+    public double getTotalStudyTime() {
+
+        return totalStudyTime;
+    }
+}

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

@@ -0,0 +1,67 @@
+package io.zipcoder.interfaces;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public final class Students extends People <Student>{
+    private static final 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()];
+        for (int i = 0; i < personList.size(); i++) {
+            students[i] = personList.get(i);
+        }
+        return students;
+    }
+}

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

@@ -0,0 +1,8 @@
+package io.zipcoder.interfaces;
+
+public interface Teacher {
+
+    public void teach(Learner learner, double numberOfHours);
+
+    public void lecture(Learner[] learners, double numberOfHours);
+}

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

@@ -0,0 +1,28 @@
+package io.zipcoder.interfaces;
+
+public final class ZipCodeWilmington {
+    private Students students;
+    private static final ZipCodeWilmington INSTANCE =  new ZipCodeWilmington();
+    private Instructors instructors;
+
+    private ZipCodeWilmington() {
+        students = Students.getINSTANCE();
+        instructors = Instructors.getInstance();
+
+    }
+
+    public static ZipCodeWilmington getInstance() {
+        return INSTANCE;
+    }
+
+    public void hostLecture(Teacher teacher, double numOfHours){
+
+        teacher.lecture(students.getArray(), numOfHours);
+
+    }
+
+    public void hostLecture(long id, double numberOfHours) {
+        instructors.findById(id).lecture(students.getArray(), numberOfHours);
+    }
+
+}

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

@@ -0,0 +1,42 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class EducatorTest {
+
+    @Test
+    public void instanceTest() {
+        Assert.assertTrue(Educator.KRIS instanceof Teacher);
+    }
+
+    @Test
+    public void teachTest() {
+        Student testLearner = new Student(1, "Bob");
+
+        double expected = 10;
+        Educator.NHU.teach(testLearner, 10.0);
+        double actual = testLearner.getTotalStudyTime();
+
+        Assert.assertEquals(expected, actual, 01);
+
+    }
+
+    @Test
+    public void lectureTest() {
+        Student student1 = new Student(1, "Bob");
+        Student student2 = new Student(2, "Gob");
+        Student student3 = new Student(3, "Slob");
+
+        Student[] students = {student1, student2, student3};
+        Educator.DOLIO.lecture(students, 15);
+        double expected = 15.0;
+        double actual = 0.0;
+        for (Student pupil : students) {
+            actual += pupil.getTotalStudyTime();
+        }
+
+        Assert.assertEquals(expected, actual, .01);
+    }
+    }
+

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

@@ -0,0 +1,53 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class InstructorTest {
+
+    @Test
+    public void testImplementation() {
+        Instructor testInstructor = new Instructor(1, "bob");
+
+        Assert.assertTrue(testInstructor instanceof Teacher);
+
+    }
+
+    @Test
+    public void testInheritance() {
+        Instructor testInstructor = new Instructor(1, "Bob");
+
+        Assert.assertTrue(testInstructor instanceof Teacher);
+
+    }
+
+    @Test
+    public void testTeach() {
+        Instructor testInstructor = new Instructor(1, "Bob");
+        Student testLearner = new Student(1, "Bob");
+
+        double expected = 10;
+        testInstructor.teach(testLearner, 10.0);
+        double actual = testLearner.getTotalStudyTime();
+
+        Assert.assertEquals(expected, actual, 01);
+    }
+
+    @Test
+    public void testLecture() {
+        Instructor testInstructor = new Instructor(1, "bob");
+        Student student1 = new Student(1, "Bob");
+        Student student2 = new Student(2, "Gob");
+        Student student3 = new Student(3, "Slob");
+
+        Student[] students = {student1, student2, student3};
+        testInstructor.lecture(students, 15);
+        double expected = 15.0;
+        double actual = 0.0;
+        for (Student pupil : students) {
+            actual += pupil.getTotalStudyTime();
+        }
+
+        Assert.assertEquals(expected, actual, .01);
+    }
+}

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

@@ -0,0 +1,25 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class InstructorsTest {
+
+    @Test
+    public void testInstructorsSingleton() {
+
+        Instructors  test1 =  Instructors.getInstance();
+        Instructors  test2 =  Instructors.getInstance();
+
+        Assert.assertSame(test1, test2);
+
+    }
+
+    @Test
+    public void testInstructorsInitialization() {
+
+        int expected = 7;
+        int actual = Instructors.getInstance().getArray().length;
+        Assert.assertEquals(expected, actual);
+    }
+}

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

@@ -0,0 +1,108 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PeopleTest {
+//    @Test
+//    public void testAdd() {
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        personList.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//
+//        int expected = 3;
+//        int actual = list.getCount();
+//
+//        Assert.assertEquals(expected, actual);
+//
+//    }
+//
+//    @Test
+//    public void testRemoveByPerson() {
+//        People list = new People();
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        list.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//        list.remove(student2);
+//
+//        int expected = 2;
+//        int actual = list.getCount();
+//
+//        Assert.assertEquals(expected, actual);
+//
+//    }
+//
+//    @Test
+//    public void testRemoveById() {
+//        People list = new People();
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        list.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//        list.remove(2);
+//
+//        long expected = 2;
+//        long actual = list.getCount();
+//
+//        Assert.assertEquals(expected, actual);
+//    }
+//    @Test
+//    public void testFindById() {
+//        People list = new People();
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        list.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//
+//        Person expected = student3;
+//        Person actual = list.findById(3);
+//
+//        Assert.assertTrue(expected.equals(actual));
+//
+//    }
+//
+//    @Test
+//    public void testGetArray() {
+//        People list = new People();
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        list.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//
+//        int expected = 3;
+//        int actual = list.getArray().length;
+//
+//        Assert.assertEquals(expected, actual);
+//
+//    }
+//
+//    @Test
+//    public void testRemoveAll() {
+//        People list = new People();
+//        Student student1 = new Student(1, "Bob");
+//        Student student2 = new Student(2, "Gob");
+//        Student student3 = new Student(3, "Slob");
+//        list.add(student1);
+//        list.add(student2);
+//        list.add(student3);
+//
+//        int expected = 0;
+//        list.removeAll();
+//        int actual = list.getCount();
+//
+//        Assert.assertEquals(expected, actual);
+//
+//    }
+}

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

@@ -0,0 +1,34 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StudentTest {
+
+    @Test
+    public void testImplementation() {
+        Student testStudent = new Student(1, "Bob");
+
+        Assert.assertTrue(testStudent instanceof Learner);
+    }
+
+    @Test
+    public void testInheritance() {
+        Student testStudent = new Student(1, "Bob");
+
+        Assert.assertTrue(testStudent instanceof Person);
+
+    }
+
+    @Test
+    public void testLearn() {
+        Student testStudent = new Student(1, "Bob");
+
+        double expected = 10.0;
+        testStudent.learn(10.0);
+        double actual = testStudent.getTotalStudyTime();
+
+        Assert.assertEquals(expected, actual, 01);
+
+    }
+}

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

@@ -0,0 +1,26 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StudentsTest {
+
+    @Test
+    public void testSingletonInstance() {
+        Students test1 = Students.getINSTANCE();
+        Students test2 = Students.getINSTANCE();
+    }
+
+    @Test
+    public void testInitializationSetupStudents() {
+
+//        Students test = Students.getINSTANCE();
+//        Person[] studentArray = test.personList.getArray()
+        int expected = 39;
+        //int actual = Students.getINSTANCE().getArray().length;
+        int actual = Students.getINSTANCE().getArray().length;
+        Assert.assertEquals(expected, actual);
+    }
+
+
+}

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 {
 
+    @Test
+    public void testConstructor() {
+        Person testPerson = new Person(1, "bob");
+
+        long expected = 1;
+        long actual = testPerson.getId();
+
+        Assert.assertEquals(expected, actual);
+
+    }
+
+    @Test
+    public void testSetAndGetName() {
+        Person testPerson = new Person(1, "Bob");
+
+        testPerson.setName("Bob");
+        String expected = "Bob";
+        String actual = testPerson.getName();
+
+        Assert.assertEquals(expected, actual);
+    }
+
 }

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

@@ -0,0 +1,24 @@
+package io.zipcoder.interfaces;
+
+import org.junit.Test;
+
+public class ZipCodeWilmingtonTest {
+
+    @Test
+    public void testHostLecture() {
+        //Instructor teach = new Instructor(1, "Gormenghast");
+        Instructors instructors = Instructors.getInstance();
+        Instructor instructor = instructors.getArray()[0];
+        ZipCodeWilmington zipTest = ZipCodeWilmington.getInstance();
+        Students studentTest = Students.getINSTANCE();
+
+        double expected = 100;
+        double actual = 0.0;
+        zipTest.hostLecture(instructor, 100);
+
+        for (Person pupil : studentTest.getArray()) {
+            actual += ((Student) pupil).getTotalStudyTime();
+        }
+
+    }
+}