Classroom -OOP (Charu)

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

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+package com.dtcc.projects;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ClassRoom {
+    private static ArrayList<Student> students =JavaAcademy.getStudents();
+    private static ArrayList<Instructor> instructors=DelTech.getInstructors();
+
+    private HashMap<String,Person> hashmap=new HashMap<>();
+
+    public HashMap<String, Person> getRoster(){
+        for(int i=0;i<students.size();i++){
+            this.hashmap.put(students.get(i).getStudentName(),new Person(students.get(i).getStudentName()));
+        }
+
+        for(int j=0;j<instructors.size();j++){
+            this.hashmap.put(instructors.get(j).getInstructorName(),new Person(instructors.get(j).getInstructorName()));
+        }
+        return this.hashmap;
+    }
+
+    public HashMap<String, Person> getHashmap() {
+        return hashmap;
+    }
+    //hs.forEach((k, v) -> {System.out.println("Key: " + k + ", Value: " + v);});
+}

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

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+package com.dtcc.projects;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DelTech {
+
+    private static ArrayList<Instructor> instructorList=new ArrayList<>();
+
+        static { // static initializer
+            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 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 {
+
+    private String instructorName;
+    private double numberOfHoursPerStudent;
+    public Instructor(){ }
+    public Instructor(String instructorName){
+        this.instructorName=instructorName;
+    }
+    @Override
+    public void teach(Student student, double numberOfHours) {
+        student.learn(numberOfHours);
+    }
+
+    @Override
+    public void lecture(Student[] student, double numberOfHours) {
+        for(int i=0;i<student.length;i++){
+            student[i].learn(numberOfHours);
+        }
+        this.numberOfHoursPerStudent =numberOfHours/student.length;
+    }
+
+    public String getInstructorName() {
+        return instructorName;
+    }
+
+    public double getNumberOfHoursPerStudent() {
+        return this.numberOfHoursPerStudent;
+    }
+}

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 ArrayList<Student> getStudents() {
+        return studentList;
+    }
+
+    public static void recruitStudent(Student student){
+        studentList.add(student);
+    }
+
+    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 {
+    public void learn(double numberOfHours);
+}
+

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

@@ -1,4 +1,21 @@
 package com.dtcc.projects;
 
 public class Person {
+    private String name;
+
+    public Person(){
+    }
+
+    public Person(String name){
+        this.name=name;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    public void setName(String name){
+        this.name=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;
+    private String studentName;
+
+    public Student(){
+
+    }
+    public Student(String studentName){
+        this.studentName=studentName;
+    }
+    public void learn(double numberOfHours) {
+        //body of learn method.
+       this.totalStudyTime=this.totalStudyTime+numberOfHours;
+    }
+    public double getTotalStudyTime(){
+        return totalStudyTime;
+    }
+
+    public String getStudentName() {
+        return studentName;
+    }
+}

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

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

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;
+import java.util.Map;
+
+public class TestClassRoom {
+    ClassRoom classroom;
+    HashMap<String,Person> hs=new HashMap<>();;
+    @Before
+    public void setup(){
+        classroom=new ClassRoom();
+        hs=classroom.getRoster();
+    }
+
+    @Test
+    public void testGetRosterValues(){
+
+        for(Map.Entry<String,Person> entry:hs.entrySet()){
+            String key = entry.getKey();
+            Person p=entry.getValue();
+            Assert.assertEquals(key,p.getName());
+        }
+    }
+
+    @Test
+    public void testGetRosterKeys(){
+        Assert.assertEquals(14,hs.size());
+        Assert.assertTrue(hs.containsKey("Charu"));
+        Assert.assertTrue(hs.containsKey("Zan"));
+        Assert.assertFalse(hs.containsKey("Roy"));
+    }
+}

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;
+
+import java.util.ArrayList;
+
+public class TestDelTech {
+    DelTech deltech;
+    ArrayList<Instructor> list;
+    @Before
+    public void setup(){
+        deltech=new DelTech();
+        deltech.fireStaff();
+    }
+
+    @Test
+    public void testFireStaff(){
+        Assert.assertEquals(0,DelTech.getInstructors().size());
+    }
+
+    @Test   //Check later
+    public void testHireStaff(){
+            String actual="Jennifer";
+            deltech.hire(new Instructor(actual));
+            list=DelTech.getInstructors();
+            Assert.assertEquals("Jennifer",list.get(0).getInstructorName());
+    }
+}

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

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestInstructor {
+
+    Instructor instructor;
+    @Before
+    public void setUp(){
+        instructor=new Instructor();
+    }
+    @Test
+    public void testImplementation(){
+        Assert.assertTrue(instructor instanceof Teacher);
+    }
+
+    @Test
+    public void testInheritance(){
+        Assert.assertTrue(instructor instanceof Person);
+    }
+    @Test
+    public void testTeach(){
+        Student student=new Student("Lorrie");
+        instructor.teach(student,5);
+        Assert.assertEquals(5,student.getTotalStudyTime(),0);
+    }
+
+    @Test
+    public void testLecture(){
+        Student[] students={new Student("Albert"),new Student("Ross"), new Student("Tom")};
+        instructor.lecture(students,9.00);
+        Assert.assertEquals(3.00,instructor.getNumberOfHoursPerStudent(),0);
+
+    }
+}

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

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestJavaAcademy {
+    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("Nisha");
+        JavaAcademy.recruitStudent(student);
+        Assert.assertEquals("Nisha",JavaAcademy.getStudents().get(0).getStudentName());
+    }
+}
+

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

@@ -1,4 +1,29 @@
 package com.dtcc.projects;
 
+import org.junit.Assert;
+import org.junit.Test;
+
 public class TestPerson {
+    Person person;
+    //Create a testSetName method which ensures that a Person object's
+    // name variable is being set by invoking the .setName method.
+    @Test
+    public void testSetName(){
+        person=new Person();
+        String actual="Charu";
+        person.setName(actual);
+        String expected=person.getName();
+        Assert.assertEquals(actual,expected);
+    }
+
+    //Create a testConstructor method which ensures that a Person object's
+    // ame variable is being set by invoking the Person constructor.
+    @Test
+    public void testConstructor(){
+        person=new Person("Ellie");
+        String actual="Ellie";
+        String expected=person.getName();
+        Assert.assertEquals(actual,expected);
+    }
 }
+

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

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+package com.dtcc.projects;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestStudent {
+    Student student;
+    @Before
+    public void setUp(){
+        student=new Student();
+    }
+    @Test
+    public void testImplementation(){
+        Assert.assertTrue(student instanceof Learner);
+    }
+
+    @Test
+    public void testInheritance(){
+        Assert.assertTrue(student instanceof Person);
+    }
+
+    @Test
+    public void testLearn(){
+        student.learn(2.00);
+        double actual=2.0;
+        double expected=student.getTotalStudyTime();
+        Assert.assertEquals(actual,expected,0);
+    }
+}