Yuhuan_JavaFinalProject

src/com/generation/Main.java

@@ -7,6 +7,7 @@
 import com.generation.utils.PrinterHelper;
 
 import java.text.ParseException;
+import java.util.Date;
 import java.util.Scanner;
 
 public class Main
@@ -17,6 +18,12 @@ public static void main( String[] args )
     {
         StudentService studentService = new StudentService();
         CourseService courseService = new CourseService();
+        Student student1 = new Student("1", "Yuhuan", "yuhuan@gmail.com", new Date("02/01/1995"));
+        studentService.subscribeStudent(student1);
+        courseService.enrollStudent("INTRO-CS-1", student1);
+        courseService.enrollStudent("INTRO-CS-2", student1);
+        studentService.enrollToCourse(student1.getId(),courseService.getCourse("INTRO-CS-1"));
+        studentService.enrollToCourse(student1.getId(),courseService.getCourse("INTRO-CS-2"));
         Scanner scanner = new Scanner( System.in );
         int option = 0;
         do
@@ -104,4 +111,5 @@ private static void registerStudent( StudentService studentService, Scanner scan
         Student student = PrinterHelper.createStudentMenu( scanner );
         studentService.subscribeStudent( student );
     }
+
 }

src/com/generation/model/Student.java

@@ -1,5 +1,6 @@
 package com.generation.model;
 
+import java.sql.SQLOutput;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
@@ -24,6 +25,16 @@ public Student( String id, String name, String email, Date birthDate )
     public void enrollToCourse( Course course )
     {
         //TODO implement this method
+        /*
+        To check if is already enroll to this course by getting the index of the course from the arrayList
+        will return -1 if not found. If not found then add the course to the list
+         */
+        if(courses.indexOf(course) == -1) {
+            courses.add(course);
+        }
+        else {
+            System.out.println("Course is already enrolled!");
+        }
     }
 
     public void registerApprovedCourse( Course course )
@@ -35,9 +46,16 @@ public void registerApprovedCourse( Course course )
     public boolean isAttendingCourse( String courseCode )
     {
         //TODO implement this method
+        if(courses.indexOf(courseCode) != -1){
+            return true;
+        }
         return false;
     }
 
+    public List<Course> getCourses() {
+        return courses;
+    }
+
     @Override
     public double getAverage()
     {

src/com/generation/service/StudentService.java

@@ -12,6 +12,7 @@ public class StudentService
 
     public void subscribeStudent( Student student )
     {
+
         students.put( student.getId(), student );
     }
 
@@ -27,6 +28,28 @@ public Student findStudent( String studentId )
     public void showSummary()
     {
         //TODO implement
+        System.out.println( "Students:" );
+        for ( String key : students.keySet() )
+        {
+            Student student = students.get( key );
+            String studentStr = student.toString(); //convert the student into a string
+            String newStr = new String();
+            String courseStr = student.getCourses().toString(); //convert the course list into a string
+            /*
+            loop through the student string and add each character to the new string, once it reach the second last index,
+            add a comma and followed by course string to the new string and end the string with the last index of the
+            student string (}). Lastly, print out the new string
+             */
+            for(int i = 0; i < studentStr.length(); i++) {
+                newStr += studentStr.charAt(i);
+                if(i == studentStr.length() - 2) {
+                    newStr += ", " + courseStr;
+                }
+
+            }
+            System.out.println(newStr);
+        }
+
     }
 
     public void enrollToCourse( String studentId, Course course )

src/com/generation/utils/PrinterHelper.java

@@ -40,7 +40,16 @@ public static Student createStudentMenu( Scanner scanner )
         System.out.println( "| Enter student birth date(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());
+        String date = scanner.next();
+        String[] dateArr = date.split("");
+        String str = "/";
+        while(!dateArr[2].equals(str)  | !dateArr[5].equals(str) | dateArr.length > 10) {
+            System.out.println("Invalid Date");
+            System.out.println( "| Enter student birth date(mm/dd/yyyy)|" );
+            date = scanner.next();
+            dateArr = date.split("");
+        }
+        Date birthDate = formatter.parse(date);
         System.out.println( "|-------------------------------------|" );
         Student student = new Student( id, name, email, birthDate );
         System.out.println( "Student Successfully Registered! " );