diff --git a/org/junit/annotations.xml b/org/junit/annotations.xml
new file mode 100644
index 0000000..66fa72f
--- /dev/null
+++ b/org/junit/annotations.xml
@@ -0,0 +1,5 @@
+<root>
+    <item name='org.junit.Test'>
+        <annotation name='java.lang.Deprecated'/>
+    </item>
+</root>
\ No newline at end of file
diff --git a/src/main/java/io/zipcoder/Classroom.java b/src/main/java/io/zipcoder/Classroom.java
index 64566f0..65c5096 100644
--- a/src/main/java/io/zipcoder/Classroom.java
+++ b/src/main/java/io/zipcoder/Classroom.java
@@ -1,4 +1,79 @@
 package io.zipcoder;
 
+import java.util.*;
+
 public class Classroom {
-}
+
+    private Student[] students;
+
+    //Constructors
+    public Classroom(int maxNumberOfStudents) {
+        students = new Student[maxNumberOfStudents];
+    }
+
+    public Classroom(Student[] students) {
+        this.students = students;
+    }
+
+    public Classroom() {
+        this(30);
+    }
+
+
+    public Student[] getStudents() {
+        return students;
+    }
+
+    public Double getAverageExamScore() {
+        double classTotalScore = 0;
+        double numberOfStudents = students.length;
+
+        for (int i = 0; i < students.length; i++)
+            classTotalScore += students[i].getAverageExamScore();
+
+        return (classTotalScore / numberOfStudents);
+    }
+
+    public String addStudent(Student student) {
+
+        for (int index = 0; index < students.length; index++) {
+            if (students[index] == null) {
+                students[index] = student;
+
+                return student.toString();
+            }
+        }
+
+        return "Classroom is full";
+    }
+
+    public boolean removeStudent(String firstName, String lasName) {
+
+        for (int index = 0; index < students.length; index++) {
+            Student student = students[index];
+
+            if (student.getFirstName().contains(firstName) &&
+                    student.getLastName().contains(lasName)) {
+
+                students[index] = null;
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public List getStudentByScore(double score) {
+        List<Student> studentScore = new ArrayList<>();
+
+        for (Student student : getStudents()) {
+            if (student.getExamScores().contains(String.valueOf(score)))
+                studentScore.add(student);
+        }
+
+        Collections.sort(studentScore, new NameComparator());
+
+        return studentScore;
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/io/zipcoder/NameComparator.java b/src/main/java/io/zipcoder/NameComparator.java
new file mode 100644
index 0000000..82cc13c
--- /dev/null
+++ b/src/main/java/io/zipcoder/NameComparator.java
@@ -0,0 +1,11 @@
+package io.zipcoder;
+
+import java.util.Comparator;
+
+public class NameComparator implements Comparator<Student> {
+
+    @Override
+    public int compare(Student o1, Student o2) {
+        return o1.getFirstName().compareTo(o2.getFirstName());
+    }
+}
diff --git a/src/main/java/io/zipcoder/Student.java b/src/main/java/io/zipcoder/Student.java
index b543e36..44ec3f2 100644
--- a/src/main/java/io/zipcoder/Student.java
+++ b/src/main/java/io/zipcoder/Student.java
@@ -1,4 +1,88 @@
 package io.zipcoder;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
 public class Student {
+
+    private String firstName;
+    private String lastName;
+    private ArrayList<Double> examScores;
+
+
+    //Constructor
+
+    public Student(String firstName, String lastName, Double[] examScores) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.examScores = new ArrayList(Arrays.asList(examScores));
+        ;
+    }
+
+
+    //setters and getters
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+
+    //methods
+    public int getNumberOfExamsTaken(){
+        return examScores.size();
+    }
+
+    public String getExamScores(){
+        String outputOfScores = "";
+
+        for(int index = 0; index < examScores.size(); index ++){
+
+            int exam = (index + 1);
+            double score = examScores.get(index);
+
+            outputOfScores += ("Exame " + exam + " -> " + score + "\n");
+        }
+
+        return outputOfScores;
+    }
+
+    public void addExamScore(double newScore){
+        examScores.add(newScore);
+    }
+
+    public void setExamScore(int examNumber, double newScore){
+        examScores.set(examNumber - 1, newScore);
+    }
+
+    public Double getAverageExamScore(){
+        double totalScore = 0.00;
+
+        for(int index = 0; index < examScores.size(); index++)
+            totalScore += examScores.get(index);
+
+        return (totalScore/examScores.size());
+    }
+
+    @Override
+    public String toString(){
+
+        String ouput = ("\n> Student Name: " + firstName + " " + lastName + "\n" +
+                        "> Average Score: " + getAverageExamScore() + "\n" +
+                        "> Exam Scores: \n" + getExamScores());
+
+        return ouput;
+    }
+
 }
diff --git a/src/test/java/io/zipcoder/ClassroomTest.java b/src/test/java/io/zipcoder/ClassroomTest.java
index 7bac1ff..93ff39c 100644
--- a/src/test/java/io/zipcoder/ClassroomTest.java
+++ b/src/test/java/io/zipcoder/ClassroomTest.java
@@ -1,4 +1,106 @@
 package io.zipcoder;
 
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.TreeMap;
+
+import static org.junit.Assert.*;
+
 public class ClassroomTest {
-}
+
+    @Test
+    public void getAverageExamScoreTest(){
+        // : Given
+        Double[] s1Scores = { 100.0, 150.0 };
+        Double[] s2Scores = { 225.0, 25.0 };
+
+        Student s1 = new Student("student", "one", s1Scores);
+        Student s2 = new Student("student", "two", s2Scores);
+
+        Student[] students = {s1,s2};
+        Classroom classroom = new Classroom(students);
+
+        // When
+        double output = classroom.getAverageExamScore();
+
+        // Then
+        System.out.println(output);
+    }
+
+    @Test
+    public void addStudentTest(){
+        // : Given
+        int maxNumberOfStudents = 1;
+        Classroom classroom = new Classroom(maxNumberOfStudents);
+        Double[] examScores = { 100.0, 150.0, 250.0, 0.0 };
+        Student student = new Student("Leon", "Hunter", examScores);
+
+        // When
+        Student[] preEnrollment = classroom.getStudents();
+        String preEnrollmentAsString = Arrays.toString(preEnrollment);
+        System.out.println("===========================");
+        System.out.println(preEnrollmentAsString);
+
+        classroom.addStudent(student);
+        Student[] postEnrollment = classroom.getStudents();
+        String postEnrollmentAsString = Arrays.toString(postEnrollment);
+        System.out.println("===========================");
+        System.out.println(postEnrollmentAsString);
+    }
+
+    @Test
+    public void removeStudentTest() {
+        // : Given
+        int maxNumberOfStudents = 2;
+        Classroom classroom = new Classroom(maxNumberOfStudents);
+
+        Double[] examScores = {100.0, 150.0, 250.0, 0.0};
+        Student student = new Student("Leon", "Hunter", examScores);
+
+        Double[] examScores2 = {100.0, 150.0, 250.0, 0.0};
+        Student student2 = new Student("Lilian", "Smith", examScores2);
+
+        classroom.addStudent(student);
+        classroom.addStudent(student2);
+
+        // When
+        Student[] preRemovingStudent = classroom.getStudents();
+        String preRemovingAsString = Arrays.toString(preRemovingStudent);
+        System.out.println("===========================");
+        System.out.println(preRemovingAsString);
+
+        classroom.removeStudent("Leon", "Hunter");
+
+        Student[] afterRemoving = classroom.getStudents();
+        String afterRemovigAsString = Arrays.toString(afterRemoving);
+        System.out.println("===========================");
+        System.out.println(afterRemovigAsString);
+    }
+
+    @Test
+    public void getStudentByScoreTest(){
+        int maxNumberOfStudents = 4;
+        Classroom classroom = new Classroom(maxNumberOfStudents);
+        Double[] examScoresS1 = {92.0, 150.0, 250.0, 50.0};
+        Double[] examScoresS2 = {250.0, 100.0, 100.0, 100.0};
+        Double[] examScoresS3 = {92.0, 150.0, 250.0, 50.00};
+        Double[] examScoresS4 = {90.0, 120.0, 99.0, 100.0};
+        // When
+        Student testS1 = new Student("Leon", "Hunter", examScoresS1);
+        Student testS2 = new Student("Joe", "Smith", examScoresS2);
+        Student testS3 = new Student("Mike", "Jones", examScoresS3);
+        Student testS4 = new Student("Bob", "Johnson", examScoresS4);
+
+        classroom.addStudent(testS1);
+        classroom.addStudent(testS2);
+        classroom.addStudent(testS3);
+        classroom.addStudent(testS4);
+
+        System.out.println(classroom.getStudentByScore(100.0).toString());
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/java/io/zipcoder/StudentTest.java b/src/test/java/io/zipcoder/StudentTest.java
index a9fedec..1c91414 100644
--- a/src/test/java/io/zipcoder/StudentTest.java
+++ b/src/test/java/io/zipcoder/StudentTest.java
@@ -1,5 +1,120 @@
 package io.zipcoder;
 
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
 public class StudentTest {
 
-}
\ No newline at end of file
+    @Test
+    public void getStudentName(){
+        // : Given
+        String firstName = "Leon";
+        String lastName = "Hunter";
+        Double[] examScores = { 100.0, 98.0 };
+        Student student = new Student(firstName, lastName, examScores);
+
+        // When
+        String output = student.getFirstName();
+        String output2 = student.getLastName();
+
+        // Then
+        System.out.println(String.format("Student's name: %s %s", output, output2));
+    }
+
+    @Test
+    public void getNumberOfExamsTakenTest(){
+        // : Given
+        String firstName = "Leon";
+        String lastName = "Hunter";
+        Double[] examScores = { 100.0, 98.0 };
+        Student student = new Student(firstName, lastName, examScores);
+
+        // When
+        int output = student.getNumberOfExamsTaken();
+
+        // Then
+        System.out.println("Student took: " + output);
+    }
+
+    @Test
+    public void getExamsScoresTest(){
+        // : Given
+        String firstName = "Leon";
+        String lastName = "Hunter";
+        Double[] examScores = { 100.0, 95.0, 123.0, 96.0 };
+        Student student = new Student(firstName, lastName, examScores);
+
+        // When
+        String output = student.getExamScores();
+
+        // Then
+        System.out.println(output);
+    }
+
+    @Test()
+        public void addExamScoreTest(){
+            // : Given
+            String firstName = "Leon";
+            String lastName = "Hunter";
+            Double[] examScores = { };
+            Student student = new Student(firstName, lastName, examScores);
+
+            // When
+            student.addExamScore(100.0);
+            String output = student.getExamScores();
+
+            // Then
+            System.out.println(output);
+        }
+
+        @Test
+        public void testSetExamScore(){
+            // : Given
+            String firstName = "Leon";
+            String lastName = "Hunter";
+            Double[] examScores = { 100.0 };
+            Student student = new Student(firstName, lastName, examScores);
+
+            // When
+            student.setExamScore(1, 150.0);
+            String output = student.getExamScores();
+
+            // Then
+            System.out.println(output);
+        }
+
+        @Test
+        public void testAverageExamScore(){
+            // : Given
+            String firstName = "Leon";
+            String lastName = "Hunter";
+            Double[] examScores = { 100.0, 150.0, 250.0, 0.0 };
+            Student student = new Student(firstName, lastName, examScores);
+
+            // When
+            double output = student.getAverageExamScore();
+
+            // Then
+            System.out.println(output);
+        }
+
+        @Test
+
+        public void testToString(){
+            // : Given
+            String firstName = "Leon";
+            String lastName = "Hunter";
+            Double[] examScores = { 100.0, 150.0, 250.0, 0.0 };
+            Student student = new Student(firstName, lastName, examScores);
+
+            // When
+            String output = student.toString();
+
+            // Then
+            System.out.println(output);
+        }
+
+}
+
diff --git a/target/classes/io/zipcoder/Classroom.class b/target/classes/io/zipcoder/Classroom.class
new file mode 100644
index 0000000..9b463c4
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diff --git a/target/classes/io/zipcoder/Student.class b/target/classes/io/zipcoder/Student.class
new file mode 100644
index 0000000..ef2ba5c
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diff --git a/target/test-classes/META-INF/classroom.kotlin_module b/target/test-classes/META-INF/classroom.kotlin_module
new file mode 100644
index 0000000..8fb6019
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diff --git a/target/test-classes/io/zipcoder/ClassroomTest.class b/target/test-classes/io/zipcoder/ClassroomTest.class
new file mode 100644
index 0000000..5cab40c
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diff --git a/target/test-classes/io/zipcoder/StudentTest.class b/target/test-classes/io/zipcoder/StudentTest.class
new file mode 100644
index 0000000..457c18d
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