Jess Classroom OOP

src/main/java/com/dtcc/projects/ClassRoom.java

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+package com.dtcc.projects;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class ClassRoom {
+
+    private static ArrayList<Student> students = JavaAcademy.getStudents();
+
+    private static ArrayList<Instructor> instructors = DelTech.getInstructors();
+
+    public static HashMap<String, Person> getRoster(){
+        HashMap<String, Person> roster = new HashMap<>();
+        for(Student student : students){
+            roster.put(student.getName(), student);
+        }
+        for(Instructor instructor : instructors){
+            roster.put(instructor.getName(), instructor);
+        }
+        return roster;
+    }
+
+
+}

src/main/java/com/dtcc/projects/DelTech.java

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+package com.dtcc.projects;
+
+import java.util.ArrayList;
+
+public class DelTech {
+    private static ArrayList<Instructor> instructorList = new ArrayList<>();
+
+    static{
+        String[] instructorNames = {"Brian", "Kaleb", "Zan"};
+        for(String instructorName : instructorNames){
+            Instructor instructor = new Instructor(instructorName);
+            hire(instructor);
+        }
+    }
+
+    public static void hire(Instructor instructor){
+        instructorList.add(instructor);
+    }
+
+    public static ArrayList<Instructor> getInstructors(){
+        return instructorList;
+    }
+
+    public static void fireStaff(){
+        instructorList.clear();
+    }
+}

src/main/java/com/dtcc/projects/Instructor.java

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+package com.dtcc.projects;
+
+public class Instructor extends Person implements Teacher{
+
+    public Instructor(){};
+
+    public Instructor(String instructorName){
+        super(instructorName);
+    }
+
+    public void teach(Student student, double numberOfHours) {
+        student.learn(numberOfHours);
+    }
+
+    public void lecture(Student[] student, double numberOfHours) {
+        for(int i = 0; i < student.length; i++){
+            student[i].learn(numberOfHours);
+        }
+    }
+}

src/main/java/com/dtcc/projects/JavaAcademy.java

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+package com.dtcc.projects;
+
+import java.util.ArrayList;
+
+public class JavaAcademy {
+    private static ArrayList<Student> studentList = new ArrayList<>();
+
+    static { // static initializer
+        String[] studentNames = { "Jessica", "Emad", "Cedric", "Lolu", "Apoorva", "Vara", "Craig", "Robert",
+                "Stephen", "Ferdinand", "Charu" };
+        for (String studentName : studentNames) {
+            Student student = new Student(studentName);
+            studentList.add(student);
+        }
+    }
+
+    public static void recruitStudent(Student student){
+        studentList.add(student);
+    }
+
+    public static ArrayList<Student> getStudents(){
+        return studentList;
+    }
+
+    public static void removeStudents(){
+        studentList.clear();
+    }
+}

src/main/java/com/dtcc/projects/Learner.java

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+package com.dtcc.projects;
+
+public interface Learner {
+    void learn(double numberOfHours);
+}

src/main/java/com/dtcc/projects/Person.java

@@ -1,4 +1,20 @@
 package com.dtcc.projects;
 
 public class Person {
+
+    private String name;
+
+    public Person(){}
+
+    public Person(String name){
+        this.name = name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
 }

src/main/java/com/dtcc/projects/Student.java

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+package com.dtcc.projects;
+
+public class Student extends Person implements Learner{
+
+    private double totalStudyTime = 0;
+
+    public Student(){};
+
+    public Student(String studentName){
+        super(studentName);
+    }
+
+    public void learn(double numberOfHours){
+        totalStudyTime+=numberOfHours;
+    }
+
+    public double getTotalStudyTime() {
+        return totalStudyTime;
+    }
+}

src/main/java/com/dtcc/projects/Teacher.java

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+package com.dtcc.projects;
+
+public interface Teacher {
+    void teach(Student student, double numberOfHours);
+    void lecture(Student[] student, double numberOfHours);
+}

src/main/main.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

src/test/java/com/dtcc/projects/TestClassRoom.java

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+
+public class TestClassRoom {
+
+    @Test
+    public void testRoster(){
+        HashMap<String, Person> roster = ClassRoom.getRoster();
+        for(Student student: JavaAcademy.getStudents()){
+            Assert.assertTrue(roster.containsKey(student.getName()));
+            Assert.assertEquals(student, roster.get(student.getName()));
+        }
+        for(Instructor instructor: DelTech.getInstructors()){
+            Assert.assertTrue(roster.containsKey(instructor.getName()));
+            Assert.assertEquals(instructor, roster.get(instructor.getName()));
+        }
+    }
+
+}

src/test/java/com/dtcc/projects/TestDelTech.java

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestDelTech {
+
+    DelTech deltech;
+
+    @Before
+    public void setup(){
+        deltech = new DelTech();
+        deltech.fireStaff();
+    }
+
+    @Test
+    public void testFireStaff(){
+        Assert.assertTrue(deltech.getInstructors().isEmpty());
+    }
+
+    @Test
+    public void testHireStaff(){
+        Instructor instructor = new Instructor("Zan");
+        deltech.hire(instructor);
+        Assert.assertTrue(deltech.getInstructors().contains(instructor));
+    }
+}

src/test/java/com/dtcc/projects/TestInstructor.java

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestInstructor {
+
+    @Test
+    public void testImplementation(){
+        Instructor instructor = new Instructor();
+        Assert.assertTrue(instructor instanceof Teacher);
+    }
+
+    @Test
+    public void testInheritance(){
+        Instructor instructor = new Instructor();
+        Assert.assertTrue(instructor instanceof Person);
+    }
+
+    @Test
+    public void testTeach(){
+        Instructor instructor = new Instructor();
+        Student student = new Student();
+        instructor.teach(student, 3);
+        Assert.assertEquals(3,student.getTotalStudyTime(), .0001);
+    }
+
+    @Test
+    public void testLecture(){
+        Instructor instructor = new Instructor();
+        Student student = new Student();
+        instructor.teach(student, 3);
+        Assert.assertEquals(3,student.getTotalStudyTime(), .0001);
+    }
+
+
+}

src/test/java/com/dtcc/projects/TestJavAcademy.java

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestJavAcademy {
+    JavaAcademy javaAcademy;
+
+    @Before
+    public void setup(){
+        javaAcademy = new JavaAcademy();
+        javaAcademy.removeStudents();
+    }
+
+    @Test
+    public void testRemoveStudents(){
+        Assert.assertTrue(javaAcademy.getStudents().isEmpty());
+    }
+
+    @Test
+    public void testRecruitStudent(){
+        Student student = new Student("Jess");
+        javaAcademy.recruitStudent(student);
+        Assert.assertTrue(javaAcademy.getStudents().contains(student));
+    }
+
+}

src/test/java/com/dtcc/projects/TestPerson.java

@@ -1,4 +1,21 @@
 package com.dtcc.projects;
 
+import org.junit.Assert;
+import org.junit.Test;
+
 public class TestPerson {
+
+    @Test
+    public void testSetName(){
+        Person person = new Person();
+        person.setName("John");
+        Assert.assertEquals("John", person.getName());
+    }
+
+    @Test
+    public void testConstructor(){
+        Person newPerson = new Person("Joe");
+        Assert.assertEquals("Joe", newPerson.getName());
+    }
+
 }

src/test/java/com/dtcc/projects/TestStudent.java

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestStudent {
+
+    @Test
+    public void testImplementation(){
+        Student student = new Student();
+        Assert.assertTrue(student instanceof Learner);
+    }
+
+    @Test
+    public void testInheritance(){
+        Student student = new Student();
+        Assert.assertTrue(student instanceof Learner);
+    }
+
+    @Test
+    public void testLearn(){
+        Student student = new Student();
+        student.learn(4);
+        Assert.assertEquals(4, student.getTotalStudyTime(), .0001);
+    }
+}

src/test/test.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/java" isTestSource="true" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="TEST">
+      <library name="JUnit4">
+        <CLASSES>
+          <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="module" module-name="main" scope="TEST" />
+  </component>
+</module>