In the project, you will develop four classes called School, Instructor, Course, and Student to store instructors, courses, and student information of a school. Based on the sample input data and sample run, you should identify instance variables and methods of each class. If its necessary, you can add more classes for the project.

Sample Input Files

The following two sample data files, C:\\tmp\\test1.txt and C:\\tmp\\test2.txt, will be used in the sample demo programs.

1. This is a sample file: C:\\tmp\\test1.txt

The first line (= 4) indicates the number of instructors in the school. The information includes the instructors unique employee number, name, email address, and phone number. Note that each field of a line is delimited by the comma symbol (,). Theres no blank space around the comma symbol and at the end of each line.

After the instructors data, the number 3 indicates the number of courses in the school. The course data includes the unique course number, course title, course capacity (= max enrollments), and class location.

The last number 2 indicates the number of students in the school. Each student information indicates the students unique ID and his/her name.

4

100,Y. Byun,ybyun@csumb.edu,111-111-1111

200,S. Narayanan,sathya@csumb.edu,222-222-2222

300,M. Lara,lara@csumb.edu,333-333-3333

250,S. Bude,bude@csumb.edu,444-123-4567

3

338,CST338 - Software Design,35,BIT 104

205,CST205 - Multimedia Design and Programming,3,BIT 118

306,CST306 - Game Engine Programming,55,BIT 104

2

7777,Alice Otter

8888,Bob Otter

2. This is another sample file: C:\\tmp\\test2.txt

2

500,G. Bruns,bruns@csumb.edu,555-222-2222

300,O. Doe,doe@csumb.edu,444-333-3333

1

336,CST336 - Internet Programming,3,Library 1010

2

7777,Unknown Otter

9999,John Doe

Some consideration for the project 1:

For the project, you can assume that the input data file is always the correct format and data. For instance, you dont need to check if the email address in the file is valid or not.

To process the input data with the comma symbol (,) delimiter, the StringTokenizer class may be useful.

The deleteCourse() method, should not delete a course if students are enrolled in the course.

The graduateStudent() method, should drop all of the students enrolled courses.

Sample Demo Program 1

The following presents a sample demo program called SchoolDemo1.java.

A sample run of your program should look like the following:

===== Read Data 1 =====

Done.

===== School Info 1 =====

School Name: SCD

public class SchoolDemo1

{

public static void main(String[] args)

{

School SCD = new School("SCD");

System.out.println("===== Read Data 1 =====");

SCD.readData("C:\\tmp\\test1.txt");

System.out.println(" ===== School Info 1 =====");

SCD.schoolInfo();

System.out.println(" ===== Read Data 2 =====");

SCD.readData("C:\\tmp\\test2.txt");

System.out.println(" ===== School Info 2 =====");

SCD.schoolInfo();

System.out.println(" ===== Search by email =====");

SCD.searchByEmail("ybyun@csumb.edu");

System.out.println(" ===== Search by email (fail) =====");

SCD.searchByEmail("byun@csumb.edu");

System.out.println(" ===== End of SchoolDemo1 =====");

}

}

Instructor Information

Y. Byun

S. Narayanan

M. Lara

S. Bude

Course Information

CST338 - Software Design

CST205 - Multimedia Design and Programming

CST306 - Game Engine Programming

Student Information

Alice Otter

Bob Otter

===== Read Data 2 =====

Instructor info reading failed Employee number 300 already used.

Student info reading failed Student ID 7777 already used.

Done.

===== School Info 2 =====

School Name: SCD

Instructor Information

Y. Byun

S. Narayanan

M. Lara

S. Bude

G. Bruns

Course Information

CST338 - Software Design

CST205 - Multimedia Design and Programming

CST306 - Game Engine Programming

CST336 - Internet Programming

Student Information

Alice Otter

Bob Otter

John Doe

===== Search by email =====

Search key: ybyun@csumb.edu

Employee Number: 100

Name: Y. Byun

Phone: 111-111-1111

===== Search by email (fail) =====

Search key: byun@csumb.edu

No employee with email byun@csumb.edu

===== End of SchoolDemo1 =====

At the sample run, the sequences of instructors, courses, and students are not important. For example, there are three students at the above sample run

Student Information

Alice Otter

Bob Otter

John Doe

The sequence is not important. If your program displays the sequence in a different order, thats fine.

Sample Demo Program 2

This is another sample demo program called SchoolDemo2.java.

A sample run of your program should look like below.

public class SchoolDemo2

{

public static void main(String[] args)

{

School SCD = new School("SCD");

Course course1;

System.out.println("===== Read Data =====");

SCD.readData("C:\\tmp\\test1.txt");

SCD.addInstructor(700, "E. Tao", "tao@csumb.edu", "777-777-1234");

SCD.addCourse(300, "CST300 ProSem", 70, "BIT 110");

SCD.addCourse(499, "CST499 iOS Dev", 15, "BIT 104");

SCD.assignInstructor (205, 200);

SCD.assignInstructor (306, 100);

SCD.register (306, 7777);

SCD.register (306, 8888);

SCD.putScore (306, 7777, 98.54);

SCD.unRegister (306, 8888);

System.out.println(" ===== Error Messages =====");

SCD.addCourse(306, "CST306 GUI Dev", 25, "BIT 120");

SCD.putScore (306, 8888, 58.75);

SCD.register (306, 9999);

SCD.assignInstructor (499, 900);

System.out.println(" ===== Detailed Course Info =====");

SCD.courseInfo(306);

course1 = SCD.getCourse(205);

course1.updateLocation("Library 104");

System.out.println(" ===== Detailed Course Info 2 =====");

SCD.courseInfo(205);

System.out.println(" ===== Detailed Course Info 3 =====");

SCD.courseInfo();

SCD.deleteCourse(306);

SCD.deleteCourse(338);

System.out.println(" ===== Detailed Course Info 4 =====");

SCD.courseInfo();

System.out.println(" ===== Good Job! Bye! =====");

}

}

===== Read Data =====

Done.

===== Error Messages =====

Course addition failed Course number 306 already used.

Student 8888 (Bob Otter) is not enrolled in 306.

Student 9999 does not exist.

Instructor 900 does not exist.

===== Detailed Course Info =====

Course Number: 306

Instructor: Y. Byun

Course Title: CST306 - Game Engine Programming

Room: BIT 104

Total Enrolled: 1

Course Average: 98.54

===== Detailed Course Info 2 =====

Course Number: 205

Instructor: S. Narayanan

Course Title: CST205 - Multimedia Design and Programming

Room: Library 104

Total Enrolled: 0

Course Average: NA // Or 0 is also fine.

===== Detailed Course Info 3 =====

Number of Courses: 5

338: 0 enrolled

205: 0 enrolled

306: 1 enrolled

300: 0 enrolled

499: 0 enrolled

Course deletion failed Enrolled student(s) in the class

===== Detailed Course Info 4 =====

Number of Courses: 4

205: 0 enrolled

306: 1 enrolled

300: 0 enrolled

499: 0 enrolled

===== Good Job! Bye! =====

Sample Demo Program 3

This is another sample demo program called SchoolDemo3.java.

public class SchoolDemo3

{

public static void main(String[] args)

{

School SCD = new School("SCD");

Instructor instructor1;

Student student1;

System.out.println("===== Read Data =====");

SCD.readData("C:\\tmp\\test1.txt");

SCD.assignInstructor (306,200);

SCD.assignInstructor (205,200);

SCD.addStudent(5555, "Chris Watson");

SCD.addStudent(9999, "Mike Watson");

SCD.register (205, 5555);

SCD.register (205, 7777);

SCD.register (306, 7777);

SCD.register (205, 8888);

SCD.putScore (205, 5555, 50.0);

SCD.putScore (205, 7777, 100.0);

SCD.putScore (306, 7777, 100.0);

SCD.putScore (205, 8888, 50.0);

System.out.println(" ===== Error Messages =====");

SCD.register (205, 9999);

SCD.unRegister (205, 8888);

System.out.println(" ===== Detailed Course Info 5 =====");

SCD.courseInfo(205);

instructor1 = SCD.getInstructor(205);

System.out.println(" ===== Detailed Instructor Info =====");

System.out.println(instructor1);

student1 = SCD.getStudent(7777);

System.out.println(" ===== Detailed Student Info =====");

System.out.println(student1);

SCD.graduateStudent(7777);

System.out.println(" ===== Detailed Student Info 2 =====");

if (SCD.getStudent(7777) == null)

System.out.println("No student information. ");

System.out.println(" ===== Detailed Course Info 6 =====");

SCD.courseInfo(205);

System.out.println(" ===== Good Job! Bye! =====");

}

}

sample run of your program should look like below.

===== Read Data 1 =====

Done.

===== Error Messages =====

Registration failed Class is full.

===== Detailed Course Info 5 =====

Course Number: 205

Instructor: S. Narayanan

Course Title: CST205 - Multimedia Design and Programming

Room: BIT 118

Total Enrolled: 2

Course Average: 75.00

===== Detailed Instructor Info =====

Instructor Number: 200

Name: S. Narayanan

Courses Teaching:

306: 1 enrolled

205: 2 enrolled

===== Detailed Student Info =====

Student Number: 7777

Name: Alice Otter

Courses Enrolled:

306: 100.00

205: 100.00

Course Average: 100.00

===== Detailed Student Info 2 =====

No student information.

===== Detailed Course Info 6 =====

Course Number: 205

Instructor: S. Narayanan

Course Title: CST205 - Multimedia Design and Programming

Room: BIT 118

Total Enrolled: 1

Course Average: 50.00

===== Good Job! Bye! =====