finito

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_5">
+    <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 +1,28 @@
+package io.zipcoder.interfaces;
+
+public enum Educator implements Teacher {
+    LEON,
+    DOLIO,
+    KRIS;
+
+
+    private final Instructor instructor;
+    double timeWorked;
+
+    Educator() {
+        this.instructor = new Instructor((long) ordinal(),name());
+    }
+
+    public void teach(Learner learner, double numberOfHours) {
+        instructor.teach(learner, numberOfHours);
+        timeWorked += numberOfHours;
+    }
+
+    public void lecture(Learner[] learners, double numberOfHours) {
+        instructor.lecture(learners,numberOfHours);
+        timeWorked += numberOfHours;
+    }
+    public double getTimeWorked() {
+        return timeWorked;
+    }
+}

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

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+package io.zipcoder.interfaces;
+
+public class Instructor extends Person implements Teacher {
+    public Instructor(Long id, String name) {
+        super(id, name);
+    }
+
+    public void teach(Learner learner, double numberOfHours) {
+       learner.learn(numberOfHours);
+    }
+
+    public void lecture(Learner[] learners, double numberOfHours) {
+        double numberOfHoursPerLearner = numberOfHours / learners.length;
+            for(Learner learner : learners){
+                learner.learn(numberOfHoursPerLearner);
+        }
+
+    }
+}

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

@@ -0,0 +1,18 @@
+package io.zipcoder.interfaces;
+
+public class Instructors extends People<Instructor>{
+    private static final Instructors INSTANCE = new Instructors();
+    private Instructors(){
+        this.addPerson(new Instructor(100L, "Leon"));
+        this.addPerson(new Instructor(101L, "Kris"));
+        this.addPerson(new Instructor(102L, "Dolio"));
+
+    };
+    public static Instructors getInstance(){
+        return INSTANCE;
+    }
+
+    public Instructor[] toArray() {
+        return new Instructor[0];
+    }
+}

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

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

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

@@ -0,0 +1,60 @@
+package io.zipcoder.interfaces;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+public abstract class People<E extends Person> implements Iterable<E> {
+
+
+    public List<E> personList = new ArrayList<E>();
+
+
+    public void addPerson(E person) {
+        personList.add(person);
+
+    }
+
+    public E findById(Long id) {
+        for (E person : personList) {
+            if (person.getId() == id)
+                return person;
+        }
+
+        return null;
+    }
+
+    public boolean containsPerson(E person) {
+        if (personList.contains(person)) {
+            return true;
+        }
+        return false;
+    }
+
+    public void removePerson(E person) {
+        personList.remove(person);
+    }
+
+    public void removeById(Long id) {
+        for (E person : personList) {
+            if (person.getId() == id)
+                personList.remove(person);
+        }
+    }
+
+    public void removeAllPeople() {
+        personList.clear();
+    }
+
+    public Integer count() {
+
+        return personList.size();
+    }
+
+    public abstract E[] toArray();
+
+    public Iterator<E> iterator() {
+        return personList.iterator();
+    }
+}
+

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

@@ -1,5 +1,23 @@
 package io.zipcoder.interfaces;
 
-public class Person {
+public  class Person {
+    private final Long id;
+    private String name;
 
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Person(Long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
 }

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

@@ -0,0 +1,17 @@
+package io.zipcoder.interfaces;
+
+public class Student extends Person implements Learner {
+    private double totalStudyTime;
+
+    public Student(Long id, String name) {
+        super(id, name);
+    }
+
+    public void learn(double numberOfHours) {
+        totalStudyTime += numberOfHours;
+    }
+
+    public Double getTotalStudyTime() {
+        return totalStudyTime;
+    }
+}

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

@@ -0,0 +1,21 @@
+package io.zipcoder.interfaces;
+
+public final class Students extends People<Student> {
+    private static final Students INSTANCE = new Students();
+    private Students(){
+        this.addPerson(new Student(100L, "Ray"));
+        this.addPerson(new Student(101L, "John"));
+        this.addPerson(new Student(102L, "Jeremy"));
+        this.addPerson(new Student(103L, "Tati"));
+        this.addPerson(new Student(104L, "Zach"));
+        this.addPerson(new Student(105L, "Dee"));
+        this.addPerson(new Student(106L, "Jen"));
+    };
+    public static Students getInstance(){
+        return INSTANCE;
+    }
+
+    public Student[] toArray() {
+        return new Student[0];
+    }
+}

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

@@ -0,0 +1,6 @@
+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 +1,25 @@
+package io.zipcoder.interfaces;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+public class ZipCodeWilmington {
+    Students students = Students.getInstance();
+    Instructors instructors = Instructors.getInstance();
+    public void hostLecture(Teacher teacher, double numberOfHours){
+        teacher.lecture(students.personList.toArray(new Learner[0]),numberOfHours);
+    }
+    public void hostLecture(Long id, double numberOfHours){
+        hostLecture(instructors.findById(id),numberOfHours);
+    }
+
+    public Map<Student,Double> getStudyMap(){
+        Map<Student,Double> studentMap = new LinkedHashMap<Student, Double>();
+        for(Person student : students){
+            Student student1 = (Student)student;
+            studentMap.put(student1, student1.getTotalStudyTime());
+        }
+
+        return studentMap;
+    }
+}