Real-World Projects
University Lecture Timetable Planner
An intelligent timetable management system that handles course scheduling, prevents time conflicts, manages classrooms, and generates optimized weekly schedules for students and faculty.
Problem Description
Create a university timetable system that:
- Manages courses with timeslots
- Prevents scheduling conflicts
- Assigns classrooms to lectures
- Generates personalized student timetables
- Handles faculty schedules
- Supports multiple time slots per day
- Provides conflict detection and resolution
Code
import java.util.*;
enum DayOfWeek {
MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
}
enum TimeSlot {
SLOT_1("09:00-10:00"),
SLOT_2("10:00-11:00"),
SLOT_3("11:00-12:00"),
SLOT_4("12:00-13:00"),
SLOT_5("14:00-15:00"),
SLOT_6("15:00-16:00"),
SLOT_7("16:00-17:00");
private String time;
TimeSlot(String time) {
this.time = time;
}
public String getTime() {
return time;
}
}
class Lecture {
private String courseCode;
private String courseName;
private String instructor;
private String classroom;
private DayOfWeek day;
private TimeSlot timeSlot;
public Lecture(String courseCode, String courseName, String instructor,
String classroom, DayOfWeek day, TimeSlot timeSlot) {
this.courseCode = courseCode;
this.courseName = courseName;
this.instructor = instructor;
this.classroom = classroom;
this.day = day;
this.timeSlot = timeSlot;
}
public String getCourseCode() { return courseCode; }
public String getCourseName() { return courseName; }
public String getInstructor() { return instructor; }
public String getClassroom() { return classroom; }
public DayOfWeek getDay() { return day; }
public TimeSlot getTimeSlot() { return timeSlot; }
@Override
public String toString() {
return String.format("%-10s %-25s %-15s %-8s",
courseCode, courseName.substring(0, Math.min(courseName.length(), 25)),
instructor, classroom);
}
}
class Timetable {
private ArrayList<Lecture> lectures;
private String owner; // Student or Faculty name
public Timetable(String owner) {
this.owner = owner;
this.lectures = new ArrayList<>();
}
public boolean hasConflict(DayOfWeek day, TimeSlot timeSlot) {
for (Lecture lecture : lectures) {
if (lecture.getDay() == day && lecture.getTimeSlot() == timeSlot) {
return true;
}
}
return false;
}
public boolean addLecture(Lecture lecture) {
if (hasConflict(lecture.getDay(), lecture.getTimeSlot())) {
System.out.println("✗ Conflict detected! Already have a lecture at " +
lecture.getDay() + " " + lecture.getTimeSlot().getTime());
return false;
}
lectures.add(lecture);
System.out.println("✓ Lecture added successfully!");
return true;
}
public void removeLecture(String courseCode) {
lectures.removeIf(lecture -> lecture.getCourseCode().equals(courseCode));
System.out.println("✓ Lecture removed");
}
public void displayTimetable() {
System.out.println("\n╔════════════════════════════════════════════════════════════════════════════╗");
System.out.println("║ WEEKLY TIMETABLE - " + owner + " ");
System.out.println("╚════════════════════════════════════════════════════════════════════════════╝");
System.out.printf("\n%-12s", "Time");
for (DayOfWeek day : DayOfWeek.values()) {
System.out.printf("%-15s", day);
}
System.out.println("\n" + "─".repeat(100));
for (TimeSlot slot : TimeSlot.values()) {
System.out.printf("%-12s", slot.getTime());
for (DayOfWeek day : DayOfWeek.values()) {
Lecture lecture = findLecture(day, slot);
if (lecture != null) {
System.out.printf("%-15s", lecture.getCourseCode());
} else {
System.out.printf("%-15s", "---");
}
}
System.out.println();
}
System.out.println("\n═══ LECTURE DETAILS ═══");
for (Lecture lecture : lectures) {
System.out.println(lecture);
}
}
private Lecture findLecture(DayOfWeek day, TimeSlot slot) {
for (Lecture lecture : lectures) {
if (lecture.getDay() == day && lecture.getTimeSlot() == slot) {
return lecture;
}
}
return null;
}
public void displayDaySchedule(DayOfWeek day) {
System.out.println("\n╔════════════════════════════════════════════╗");
System.out.println("║ SCHEDULE FOR " + day + " ");
System.out.println("╚════════════════════════════════════════════╝");
boolean hasLectures = false;
for (TimeSlot slot : TimeSlot.values()) {
Lecture lecture = findLecture(day, slot);
if (lecture != null) {
System.out.println("\n" + slot.getTime());
System.out.println("┌────────────────────────────────────────┐");
System.out.println("│ Course : " + lecture.getCourseCode() + " - " + lecture.getCourseName());
System.out.println("│ Instructor : " + lecture.getInstructor());
System.out.println("│ Classroom : " + lecture.getClassroom());
System.out.println("└────────────────────────────────────────┘");
hasLectures = true;
}
}
if (!hasLectures) {
System.out.println("\nNo lectures scheduled for this day!");
}
}
public int getTotalLectures() {
return lectures.size();
}
public ArrayList<Lecture> getLectures() {
return lectures;
}
}
class TimetableManager {
private HashMap<String, Timetable> studentTimetables;
private HashMap<String, Timetable> facultyTimetables;
private HashMap<String, ArrayList<Lecture>> courseCatalog;
public TimetableManager() {
studentTimetables = new HashMap<>();
facultyTimetables = new HashMap<>();
courseCatalog = new HashMap<>();
}
public void registerStudent(String studentName) {
studentTimetables.put(studentName, new Timetable(studentName));
System.out.println("✓ Student registered: " + studentName);
}
public void registerFaculty(String facultyName) {
facultyTimetables.put(facultyName, new Timetable(facultyName));
System.out.println("✓ Faculty registered: " + facultyName);
}
public boolean enrollStudent(String studentName, Lecture lecture) {
Timetable timetable = studentTimetables.get(studentName);
if (timetable == null) {
System.out.println("✗ Student not found!");
return false;
}
return timetable.addLecture(lecture);
}
public Timetable getStudentTimetable(String studentName) {
return studentTimetables.get(studentName);
}
public Timetable getFacultyTimetable(String facultyName) {
return facultyTimetables.get(facultyName);
}
public void displayAllStudents() {
System.out.println("\n═══ REGISTERED STUDENTS ═══");
for (String student : studentTimetables.keySet()) {
Timetable tt = studentTimetables.get(student);
System.out.println("• " + student + " (" + tt.getTotalLectures() + " lectures)");
}
}
}
public class UniversityTimetable {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
TimetableManager manager = new TimetableManager();
System.out.println("╔═══════════════════════════════════════════════╗");
System.out.println("║ UNIVERSITY TIMETABLE MANAGEMENT SYSTEM ║");
System.out.println("╚═══════════════════════════════════════════════╝\n");
// Sample data
manager.registerStudent("John Doe");
manager.registerStudent("Jane Smith");
boolean running = true;
while (running) {
System.out.println("\n" + "═".repeat(50));
System.out.println(" MAIN MENU");
System.out.println("═".repeat(50));
System.out.println("STUDENT MANAGEMENT:");
System.out.println(" 1. Register Student");
System.out.println(" 2. Enroll in Course");
System.out.println(" 3. View Student Timetable");
System.out.println(" 4. View Day Schedule");
System.out.println(" 5. List All Students");
System.out.println("\n 0. Exit");
System.out.println("═".repeat(50));
System.out.print("Enter choice: ");
int choice = scanner.nextInt();
scanner.nextLine();
switch (choice) {
case 1:
System.out.print("\nEnter student name: ");
String name = scanner.nextLine();
manager.registerStudent(name);
break;
case 2:
System.out.print("\nEnter student name: ");
String studentName = scanner.nextLine();
System.out.print("Course code: ");
String code = scanner.nextLine();
System.out.print("Course name: ");
String courseName = scanner.nextLine();
System.out.print("Instructor: ");
String instructor = scanner.nextLine();
System.out.print("Classroom: ");
String classroom = scanner.nextLine();
System.out.println("\nSelect day:");
DayOfWeek[] days = DayOfWeek.values();
for (int i = 0; i < days.length; i++) {
System.out.println((i + 1) + ". " + days[i]);
}
System.out.print("Choice: ");
int dayChoice = scanner.nextInt();
DayOfWeek day = days[dayChoice - 1];
System.out.println("\nSelect time slot:");
TimeSlot[] slots = TimeSlot.values();
for (int i = 0; i < slots.length; i++) {
System.out.println((i + 1) + ". " + slots[i].getTime());
}
System.out.print("Choice: ");
int slotChoice = scanner.nextInt();
scanner.nextLine();
TimeSlot slot = slots[slotChoice - 1];
Lecture lecture = new Lecture(code, courseName, instructor, classroom, day, slot);
manager.enrollStudent(studentName, lecture);
break;
case 3:
System.out.print("\nEnter student name: ");
String student = scanner.nextLine();
Timetable tt = manager.getStudentTimetable(student);
if (tt != null) {
tt.displayTimetable();
} else {
System.out.println("✗ Student not found!");
}
break;
case 4:
System.out.print("\nEnter student name: ");
String student2 = scanner.nextLine();
Timetable tt2 = manager.getStudentTimetable(student2);
if (tt2 != null) {
System.out.println("\nSelect day:");
DayOfWeek[] days2 = DayOfWeek.values();
for (int i = 0; i < days2.length; i++) {
System.out.println((i + 1) + ". " + days2[i]);
}
System.out.print("Choice: ");
int dayChoice2 = scanner.nextInt();
scanner.nextLine();
tt2.displayDaySchedule(days2[dayChoice2 - 1]);
} else {
System.out.println("✗ Student not found!");
}
break;
case 5:
manager.displayAllStudents();
break;
case 0:
System.out.println("\n╔═══════════════════════════════════════════╗");
System.out.println("║ Thank you for using Timetable System! ║");
System.out.println("╚═══════════════════════════════════════════╝\n");
running = false;
break;
default:
System.out.println("\n✗ Invalid choice!");
}
}
scanner.close();
}
}Explanation
Key Components
-
Enums:
DayOfWeek: Represents days (Monday-Saturday)TimeSlot: Represents 7 time slots from 9 AM to 5 PM
-
Lecture Class:
- Stores complete lecture information
- Links course, instructor, classroom, day, and time
-
Timetable Class:
- Manages lectures for a student/faculty
- Detects and prevents scheduling conflicts
- Generates visual weekly and daily schedules
-
Conflict Detection:
if (hasConflict(day, timeSlot)) { return false; // Cannot add lecture }
Features
- Conflict Prevention: Automatically detects time clashes
- Grid Display: Shows weekly schedule in table format
- Day View: Detailed schedule for specific day
- Multiple Users: Separate timetables for students and faculty
- Real-time Updates: Add/remove lectures dynamically
Try Yourself
- Classroom Management: Track classroom capacity and prevent overrights: booking.
- Break Times: Add compulsory break slots (lunch, etc.).
- Credit Hours: Associate credit hours with courses and calculate total.
- Electives: Allow students to choose from available elective slots.
- Export: Save timetable to a PDF or text file.
- Optimization: Suggest optimal schedule to minimize gaps between classes.
- Notifications: Alert for upcoming lectures (next hour).
- Room Booking: Prevent double-booking of classrooms.
- Lab Sessions: Handle 2-3 hour lab sessions spanning multiple slots.
- Semester Planning: Manage different timetables for different semesters.
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