finished lab

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 +1,25 @@
+package io.zipcoder.interfaces;
+
+public enum Educator implements Teacher{
+    DOLIO(new Instructor(311412L, "Dolio")),
+    ROBERTO(new Instructor(24302L, "Roberto"));
+
+    final Instructor instructor;
+    Double timeWorked = 0.0;
+
+    Educator(Instructor instructor){
+        this.instructor = instructor;
+    }
+
+    @Override
+    public void teach(Learner learner, double numberOfHours) {
+        this.instructor.teach(learner, numberOfHours);
+        this.timeWorked += numberOfHours;
+    }
+
+    @Override
+    public void lecture(Learner[] learners, double numberOfHours) {
+        this.instructor.lecture(learners, numberOfHours);
+        this.timeWorked += numberOfHours;
+    }
+}

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

@@ -0,0 +1,21 @@
+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 numberofHoursPerStudent = numberOfHours / learners.length;
+        for(Learner learner : learners)
+            learner.learn(numberofHoursPerStudent);
+    }
+
+
+
+}

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

@@ -0,0 +1,26 @@
+package io.zipcoder.interfaces;
+
+public final class Instructors extends People<Instructor>{
+
+    private static final Instructors INSTANCE = new Instructors();
+
+
+
+    private Instructors(){
+        super();
+        Instructor instructorOne = new Instructor(311412L, "Dolio");
+        Instructor instructorTwo = new Instructor(24302L, "Roberto");
+
+        personList.add(instructorOne);
+        personList.add(instructorTwo);
+
+    }
+
+    Instructor[] getArray() {
+        return personList.toArray(new Instructor[personList.size()]);
+    }
+
+    public static Instructors getInstance(){
+        return INSTANCE;
+    }
+}

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

@@ -0,0 +1,7 @@
+package io.zipcoder.interfaces;
+
+public interface Learner {
+
+     void learn(double numberOfHours);
+     Double getTotalStudyTime();
+}

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

@@ -0,0 +1,52 @@
+package io.zipcoder.interfaces;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+abstract class People<E extends Person> implements Iterable<E> {
+
+    List<E> personList;
+
+    public People(){
+        personList = new ArrayList<E>();
+    }
+
+    public void add(E person){
+        personList.add(person);
+    }
+
+    public E findById(long id){
+        for(E person : personList)
+            if(person.getId() == id)
+                return person;
+
+            return null;
+    }
+
+    public boolean contains(E person){
+        return personList.contains(person);
+    }
+
+    public void removeByPerson(E person){
+        personList.remove(person);
+    }
+
+    public void removeById(long id){
+        personList.remove(findById(id));
+    }
+
+    public void removeAll(){
+        personList.clear();
+    }
+
+    public int count(){
+        return personList.size();
+    }
+
+    abstract E[] getArray();
+
+    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 {
+        final Long id;
+        String name;
 
+    public Person(Long id, String name){
+        this.id = id;
+        this.name = name;
+    }
+
+    public Long getId(){
+        return this.id;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    public void setName(String name){
+        this.name = name;
+    }
 }

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

@@ -0,0 +1,19 @@
+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;
+    }
+}

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

@@ -0,0 +1,26 @@
+package io.zipcoder.interfaces;
+
+public final class Students extends People<Student>{
+
+    private static final Students INSTANCE = new Students();
+
+    private Students(){
+
+        Student studentOne = new Student(212242L, "Brian");
+        Student studentTwo = new Student(121231L, "Kievina");
+
+        personList.add(studentOne);
+        personList.add(studentTwo);
+
+    }
+
+    @Override
+    public Student[] getArray(){
+
+        return personList.toArray(new Student[personList.size()]);
+    }
+
+    public static Students getInstance(){
+        return INSTANCE;
+    }
+}

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

@@ -0,0 +1,9 @@
+package io.zipcoder.interfaces;
+
+public interface Teacher {
+
+    void teach(Learner learner, double numberOfHours);
+    void lecture(Learner[] learner, double numberOfHours);
+
+
+}

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

@@ -0,0 +1,38 @@
+package io.zipcoder.interfaces;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public final class ZipCodeWilmington {
+
+    private final Students students = Students.getInstance();
+    private final Instructors instructors = Instructors.getInstance();
+    private static final ZipCodeWilmington INSTANCE = new ZipCodeWilmington();
+
+    private ZipCodeWilmington(){
+    }
+
+    public void hostLecture(Teacher teacher, double numberOfHours){
+        teacher.lecture(students.getArray(), numberOfHours);
+    }
+
+    public void hostLecture(long id, double numberOfHours){
+        Teacher teacher = (Teacher) instructors.findById(id);
+        hostLecture(teacher, numberOfHours);
+    }
+
+    public HashMap<Student, Double> getStudyMap(){
+        HashMap<Student, Double> studyMap = new HashMap<Student, Double>();
+        for(Person person : students.getArray()){
+            Student student = (Student) person;
+            studyMap.put(student, student.getTotalStudyTime());
+        }
+        return studyMap;
+    }
+
+    public static ZipCodeWilmington getInstance(){
+        return INSTANCE;
+    }
+
+
+}