completed README tasks.

src/com/generation/model/Student.java

@@ -24,6 +24,8 @@ public Student( String id, String name, String email, Date birthDate )
     public void enrollToCourse( Course course )
     {
         //TODO implement this method
+        // add course to courses list
+        courses.add(course);
     }
 
     public void registerApprovedCourse( Course course )
@@ -35,6 +37,12 @@ public void registerApprovedCourse( Course course )
     public boolean isAttendingCourse( String courseCode )
     {
         //TODO implement this method
+        // check to see if the course code corresponds to any entry in the courses list
+        for(int i = 0; i < courses.size(); i++) {
+            if(courseCode.equals(courses.get(i))) {
+                return true;
+            }
+        }
         return false;
     }
 
@@ -47,6 +55,6 @@ public double getAverage()
     @Override
     public String toString()
     {
-        return "Student {" + super.toString() + "}";
+        return "Student {" + super.toString() + " " + courses.toString() + "}";
     }
 }

src/com/generation/service/CourseService.java

@@ -15,6 +15,7 @@ public class CourseService
 
     private final Map<String, List<Student>> enrolledStudents = new HashMap<>();
 
+
     public CourseService()
     {
         Module module = new Module( "INTRO-CS", "Introduction to Computer Science",

src/com/generation/service/StudentService.java

@@ -4,6 +4,7 @@
 import com.generation.model.Student;
 
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 public class StudentService
@@ -27,6 +28,13 @@ public Student findStudent( String studentId )
     public void showSummary()
     {
         //TODO implement
+        // implement showSummary by using showSummary method in CourseService class as a basis to what the output should look like
+
+        System.out.println("Registered Students:");
+        for (Student student : students.values() ) {
+            System.out.println(student.toString());
+        }
+
     }
 
     public void enrollToCourse( String studentId, Course course )

src/com/generation/utils/PrinterHelper.java

@@ -37,10 +37,22 @@ public static Student createStudentMenu( Scanner scanner )
         String id = scanner.next();
         System.out.println( "| Enter student email:                |" );
         String email = scanner.next();
-        System.out.println( "| Enter student birth date(mm/dd/yyyy)|" );
-        DateFormat formatter = new SimpleDateFormat( "mm/dd/yyyy");
+        DateFormat formatter = new SimpleDateFormat( "MM/dd/yyyy");
         //TODO validate date format and catch exception to avoid crash
-        Date birthDate = formatter.parse( scanner.next());
+        boolean validFormat = false;
+        Date birthDate = null;
+        while(!validFormat) {
+            System.out.println( "| Enter student birth date(mm/dd/yyyy)|" );
+            try {
+                birthDate = formatter.parse(scanner.next());
+                validFormat = true;
+
+            } catch (ParseException e) {
+                System.out.println("Please input a valid date.");
+            }
+
+        }
+
         System.out.println( "|-------------------------------------|" );
         Student student = new Student( id, name, email, birthDate );
         System.out.println( "Student Successfully Registered! " );