Feat: Created StudentTest class, built Student class via StudentTest

src/main/java/Student.java

@@ -0,0 +1,38 @@
+import java.util.ArrayList;
+
+public class Student {
+    private long id;
+    private String name;
+    private ArrayList<Integer> grades;
+
+    public Student(long studentID, String studentName){
+        this.id = studentID;
+        this.name = studentName;
+        this.grades = new ArrayList<>();
+    }
+
+    public long getId(){
+        return this.id;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    public void addGrade(int newGrade){
+        this.grades.add(newGrade);
+    }
+
+    public ArrayList<Integer> getGrades(){
+        return this.grades;
+    }
+
+    public double getGradeAverage(){
+        double gradeCompile = 0;
+        for (Integer grade: this.grades){
+            gradeCompile += grade;
+        }
+        return gradeCompile/this.grades.size();
+    }
+
+}

src/test/java/StudentTest.java

@@ -0,0 +1,45 @@
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.junit.Assert.*;
+public class StudentTest {
+    private Student student1;
+
+    @Before
+    public void setUp(){
+        student1 = new Student(1234567890, "Student1");
+        student1.addGrade(91);
+        student1.addGrade(90);
+        student1.addGrade(89);
+    }
+
+    @Test
+    public void testName(){
+        assertEquals("Student1", student1.getName());
+        assertNotEquals("Student", student1.getName());
+
+    }
+
+    @Test
+    public void testID(){
+        assertEquals(1234567890, student1.getId());
+        assertNotEquals(1234567891, student1.getId());
+    }
+
+    @Test
+    public void testGrades(){
+        ArrayList<Integer> testGrade = new ArrayList<>();
+        testGrade.add(91);
+        testGrade.add(90);
+        testGrade.add(89);
+        assertEquals(testGrade, student1.getGrades());
+    }
+
+    @Test
+    public void testGradeAverage(){
+        assertEquals(90, student1.getGradeAverage(),0);
+    }
+
+}