diff --git a/src/main/java/com/dtcc/projects/ClassRoom.java b/src/main/java/com/dtcc/projects/ClassRoom.java
new file mode 100644
index 0000000..997730a
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/ClassRoom.java
@@ -0,0 +1,39 @@
+package com.dtcc.projects;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class ClassRoom {
+
+    private ArrayList<Student> students = new ArrayList<Student>(); //JavaAcademy.getStudents();
+    private ArrayList<Instructor> instructors = new ArrayList<Instructor>(); // DelTech.getInstructors();
+    private HashMap<String, Person> rosters= new HashMap<String, Person>();
+
+
+    public HashMap getRoster(){
+        for(Person p : students){
+            rosters.put(p.getName(), p);
+        }
+        for(Person p : instructors){
+            rosters.put(p.getName(), p);
+        }
+
+        return rosters;
+}
+
+    public ArrayList<Student> getStudents() {
+        return students;
+    }
+
+    public void setStudents(ArrayList<Student> students) {
+        this.students = students;
+    }
+
+    public ArrayList<Instructor> getInstructors() {
+        return instructors;
+    }
+
+    public void setInstructors(ArrayList<Instructor> instructors) {
+        this.instructors = instructors;
+    }
+}
diff --git a/src/main/java/com/dtcc/projects/DelTech.java b/src/main/java/com/dtcc/projects/DelTech.java
new file mode 100644
index 0000000..32ace96
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/DelTech.java
@@ -0,0 +1,28 @@
+package com.dtcc.projects;
+
+import java.util.ArrayList;
+
+public class DelTech {
+
+    private static ArrayList<Instructor> instructorList = new ArrayList<Instructor>();
+    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(ArrayList instructorList){
+        instructorList.clear();
+    }
+}
diff --git a/src/main/java/com/dtcc/projects/Instructor.java b/src/main/java/com/dtcc/projects/Instructor.java
new file mode 100644
index 0000000..fbd5d29
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/Instructor.java
@@ -0,0 +1,18 @@
+package com.dtcc.projects;
+
+public class Instructor extends Person implements Teacher {
+
+    public Instructor(String name){
+
+    }
+
+    public void teach(Student student, double noOfHours) {
+        student.learn(noOfHours);
+    }
+
+    public void lecture(Student[] student, double numberOfHours) {
+        Student[] students = new Student[10];
+        double numberOfHoursPerStudent = numberOfHours / students.length;
+
+    }
+}
diff --git a/src/main/java/com/dtcc/projects/JavaAcademy.java b/src/main/java/com/dtcc/projects/JavaAcademy.java
new file mode 100644
index 0000000..852a2ee
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/JavaAcademy.java
@@ -0,0 +1,27 @@
+package com.dtcc.projects;
+
+import java.util.ArrayList;
+
+public class JavaAcademy {
+    private static ArrayList<Student> studentList = new ArrayList<Student>();
+    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 getStudents(){
+        return studentList;
+    }
+    public static void removeStudents(ArrayList students){
+        studentList.clear();
+    }
+
+}
diff --git a/src/main/java/com/dtcc/projects/Learner.java b/src/main/java/com/dtcc/projects/Learner.java
new file mode 100644
index 0000000..f3b41da
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/Learner.java
@@ -0,0 +1,6 @@
+package com.dtcc.projects;
+
+public interface Learner {
+
+    public void learn(double numberOfHours);
+}
diff --git a/src/main/java/com/dtcc/projects/Person.java b/src/main/java/com/dtcc/projects/Person.java
index ff9713e..3c4e9a8 100644
--- a/src/main/java/com/dtcc/projects/Person.java
+++ b/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 this.name;
+    }
 }
diff --git a/src/main/java/com/dtcc/projects/Student.java b/src/main/java/com/dtcc/projects/Student.java
new file mode 100644
index 0000000..331649b
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/Student.java
@@ -0,0 +1,23 @@
+package com.dtcc.projects;
+
+public class Student extends Person implements Learner{
+    private double totalStudyTime  = 0.0;
+
+    public Student(String studentName) {
+    }
+
+    public Student() {
+
+    }
+
+    public void learn(double numberOfHours) {
+        this.totalStudyTime += numberOfHours;
+    }
+    public double getTotalStudyTime(){
+        return this.totalStudyTime;
+    }
+    public void setTotalStudyTime(double numberOfHours){
+        this.totalStudyTime = numberOfHours;
+
+    }
+}
diff --git a/src/main/java/com/dtcc/projects/Teacher.java b/src/main/java/com/dtcc/projects/Teacher.java
new file mode 100644
index 0000000..b2a0b25
--- /dev/null
+++ b/src/main/java/com/dtcc/projects/Teacher.java
@@ -0,0 +1,8 @@
+package com.dtcc.projects;
+
+public interface Teacher {
+
+    public void teach(Student student, double noOfHours);
+
+    public void lecture(Student[] student, double noOfHours);
+}
diff --git a/src/test/java/com/dtcc/projects/TestClassRoom.java b/src/test/java/com/dtcc/projects/TestClassRoom.java
new file mode 100644
index 0000000..a91d7ae
--- /dev/null
+++ b/src/test/java/com/dtcc/projects/TestClassRoom.java
@@ -0,0 +1,43 @@
+package com.dtcc.projects;
+
+import org.junit.Test;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.fail;
+
+public class TestClassRoom {
+
+
+    ClassRoom cr = new ClassRoom();
+    @Test
+    public void hashMappingTest(){
+        Set<Person> s = new HashSet<Person>(cr.getRoster().values());
+        Iterator<Person> it = s.iterator();
+        while(it.hasNext()){
+            Person p = it.next();
+            if(it.next() instanceof Student){
+                if(!cr.getStudents().contains(p)){
+                    fail();
+                }
+            }
+            if(it.next() instanceof Instructor){
+
+                if(!cr.getInstructors().contains(p)){
+                    fail();
+
+                }
+
+            }
+
+        }
+
+
+    }
+
+
+}
diff --git a/src/test/java/com/dtcc/projects/TestDelTech.java b/src/test/java/com/dtcc/projects/TestDelTech.java
new file mode 100644
index 0000000..fbc13d6
--- /dev/null
+++ b/src/test/java/com/dtcc/projects/TestDelTech.java
@@ -0,0 +1,4 @@
+package com.dtcc.projects;
+
+public class TestDelTech {
+}
diff --git a/src/test/java/com/dtcc/projects/TestInstructor.java b/src/test/java/com/dtcc/projects/TestInstructor.java
new file mode 100644
index 0000000..27732a4
--- /dev/null
+++ b/src/test/java/com/dtcc/projects/TestInstructor.java
@@ -0,0 +1,34 @@
+package com.dtcc.projects;
+
+import org.hamcrest.core.IsInstanceOf;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+
+public class TestInstructor {
+
+    Instructor instructor = new Instructor("Brian");
+    @Test
+    public void testImplementation(){
+        assertThat(instructor, new IsInstanceOf(Teacher.class));
+
+    }
+    @Test
+    public void testInheritance(){
+        assertThat(instructor, new IsInstanceOf(Person.class));
+    }
+    @Test
+    public void testTeach(){
+        Student s1 = new Student();
+        instructor.teach(s1, 20);
+        assertEquals(20, s1.getTotalStudyTime(),0.001);
+    }
+    @Test
+    public void testLecture(){
+        Student s2 = new Student();
+        instructor.teach(s2, 20);
+        assertEquals(20, s2.getTotalStudyTime(),0.001);
+
+    }
+}
diff --git a/src/test/java/com/dtcc/projects/TestJavaAcademy.java b/src/test/java/com/dtcc/projects/TestJavaAcademy.java
new file mode 100644
index 0000000..a7b0634
--- /dev/null
+++ b/src/test/java/com/dtcc/projects/TestJavaAcademy.java
@@ -0,0 +1,34 @@
+package com.dtcc.projects;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.junit.Assert.*;
+
+public class TestJavaAcademy {
+    @Before
+    @Test
+    public void setup(){
+//        ArrayList<String> removeStudentList = new ArrayList<String>();
+//        removeStudentList.add("Tom");
+        JavaAcademy.removeStudents(JavaAcademy.getStudents());
+
+    }
+@Test
+    public void testRemoveStudents(){
+        assertTrue(JavaAcademy.getStudents().isEmpty());
+
+    }
+
+    @Test
+    public void testRecruitStudent(){
+        Student Tom = new Student("Tom");
+        JavaAcademy.recruitStudent(Tom);
+        assertTrue(JavaAcademy.getStudents().contains(Tom));
+
+    }
+
+
+}
diff --git a/src/test/java/com/dtcc/projects/TestPerson.java b/src/test/java/com/dtcc/projects/TestPerson.java
index 040f78f..c7422fc 100644
--- a/src/test/java/com/dtcc/projects/TestPerson.java
+++ b/src/test/java/com/dtcc/projects/TestPerson.java
@@ -1,4 +1,29 @@
 package com.dtcc.projects;
 
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
 public class TestPerson {
+
+
+
+    @Test
+    public void testsetname(){
+        Person person = new Person();
+        String expected = "Mongo";
+        person.setName("Mongo");
+
+        Assert.assertEquals(expected, person.getName());
+
+
+    }
+    @Test
+    public void testConstructor(){
+        String expected = "Mongo";
+        Person person1 = new Person("Mongo");
+        Assert.assertEquals(expected, person1.getName());
+    }
+
 }
diff --git a/src/test/java/com/dtcc/projects/TestStudent.java b/src/test/java/com/dtcc/projects/TestStudent.java
new file mode 100644
index 0000000..6be1436
--- /dev/null
+++ b/src/test/java/com/dtcc/projects/TestStudent.java
@@ -0,0 +1,29 @@
+package com.dtcc.projects;
+import com.dtcc.projects.Learner;
+
+import org.hamcrest.core.IsInstanceOf;
+import org.junit.Test;
+import org.hamcrest.BaseMatcher;
+
+import static org.junit.Assert.*;
+
+public class TestStudent {
+    Student student = new Student();
+
+    @Test
+    public void testImplementation(){
+        assertThat(student, new IsInstanceOf(Learner.class));
+
+    }
+    @Test
+    public void testInheritance(){
+        assertThat(student, new IsInstanceOf(Person.class));
+    }
+    @Test
+    public void testLearn(){
+        student.learn(5);
+        assertEquals(5, student.getTotalStudyTime(), 0.001);
+    }
+
+
+}
diff --git a/target/classes/com/dtcc/projects/ClassRoom.class b/target/classes/com/dtcc/projects/ClassRoom.class
new file mode 100644
index 0000000..76bddb4
Binary files /dev/null and b/target/classes/com/dtcc/projects/ClassRoom.class differ
diff --git a/target/classes/com/dtcc/projects/DelTech.class b/target/classes/com/dtcc/projects/DelTech.class
new file mode 100644
index 0000000..95a2d36
Binary files /dev/null and b/target/classes/com/dtcc/projects/DelTech.class differ
diff --git a/target/classes/com/dtcc/projects/Instructor.class b/target/classes/com/dtcc/projects/Instructor.class
new file mode 100644
index 0000000..67ef08a
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diff --git a/target/classes/com/dtcc/projects/JavaAcademy.class b/target/classes/com/dtcc/projects/JavaAcademy.class
new file mode 100644
index 0000000..dd3732e
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diff --git a/target/classes/com/dtcc/projects/Learner.class b/target/classes/com/dtcc/projects/Learner.class
new file mode 100644
index 0000000..87dea78
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diff --git a/target/classes/com/dtcc/projects/Person.class b/target/classes/com/dtcc/projects/Person.class
new file mode 100644
index 0000000..3093485
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diff --git a/target/classes/com/dtcc/projects/Student.class b/target/classes/com/dtcc/projects/Student.class
new file mode 100644
index 0000000..4221a79
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diff --git a/target/classes/com/dtcc/projects/Teacher.class b/target/classes/com/dtcc/projects/Teacher.class
new file mode 100644
index 0000000..86c76bd
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diff --git a/target/test-classes/com/dtcc/projects/TestClassRoom.class b/target/test-classes/com/dtcc/projects/TestClassRoom.class
new file mode 100644
index 0000000..83999b9
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diff --git a/target/test-classes/com/dtcc/projects/TestDelTech.class b/target/test-classes/com/dtcc/projects/TestDelTech.class
new file mode 100644
index 0000000..72a2f33
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diff --git a/target/test-classes/com/dtcc/projects/TestInstructor.class b/target/test-classes/com/dtcc/projects/TestInstructor.class
new file mode 100644
index 0000000..e47d762
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diff --git a/target/test-classes/com/dtcc/projects/TestJavaAcademy.class b/target/test-classes/com/dtcc/projects/TestJavaAcademy.class
new file mode 100644
index 0000000..39c9291
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diff --git a/target/test-classes/com/dtcc/projects/TestPerson.class b/target/test-classes/com/dtcc/projects/TestPerson.class
new file mode 100644
index 0000000..2ff796b
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diff --git a/target/test-classes/com/dtcc/projects/TestStudent.class b/target/test-classes/com/dtcc/projects/TestStudent.class
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index 0000000..a89075a
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