Why it is worth attention

It provides a clean, well-documented example of backtracking applied to a real scheduling problem, with explicit focus on readability and learning outcomes for CS students.

Who it is for

Second-year computer science students learning DSA and Java
Students studying backtracking and constraint satisfaction
Educators needing a simple timetable generation example
Self-learners interested in OOP and recursion

Use cases

Generating a weekly university timetable from subject, room, and time-slot inputs
Demonstrating recursive backtracking in a console application
Practicing object-oriented design with clearly separated class responsibilities
Understanding constraint checking for faculty, room, and lab conflicts

Strengths

Clash-free generation with faculty, room, and lab conflict detection
Beginner-friendly code with clear class responsibilities and comments
Randomized time-slot ordering for better timetable distribution
Console-based interface with simple input and output

Considerations

Exponential worst-case time complexity may struggle with large inputs
No persistence: data is lost on exit (no file or database)
Limited to a fixed set of default rooms and time slots; not configurable without code changes

README quick start

Smart Timetable Generator

A Java console application that generates clash-free university timetables using the Backtracking algorithm. The project demonstrates object-oriented design, recursion, and constraint-based scheduling in a simple, beginner-friendly implementation.

Smart Timetable Generator

Smart Timetable Generator is a console-based Java project that creates a university timetable by placing subjects into valid room and time-slot combinations.

I built this project to practice:

Object-Oriented Programming
recursion
Backtracking
constraint checking
clean class design

The idea is simple: given a set of subjects, rooms, and time slots, the program tries to build a timetable without clashes.

This project is meant to be easy to read and understand, especially for a second-year Computer Science student who is learning DSA and Java design basics.

Features

Clash-free timetable generation
Recursive Backtracking algorithm
Faculty conflict detection
Room conflict detection
Lab and classroom validation
Automatic timetable printing
Console-based interface
Randomized time-slot ordering for better timetable distribution
Multiple timetable generation
Simple statistics after generation

Technologies Used

Java 17
Object-Oriented Programming
Backtracking
Java Collections
Console Application

Project Structure

Smart Timetable Generator Project/
├── README.md
└── src/
    ├── Subject.java
    ├── Room.java
    ├── Day.java
    ├── TimeSlot.java
    ├── Lecture.java
    ├── Timetable.java
    ├── ConstraintChecker.java
    ├── TimeSlotGenerator.java
    ├── InputManager.java
    ├── ConsoleHelper.java
    ├── TimetablePrinter.java
    ├── Scheduler.java
    └── Main.java

What each class does

Subject.java
- stores subject name, faculty name, lectures per week, and lab status
Room.java
- stores room name, capacity, and whether the room is a lab
Day.java
- enum for Monday to Friday
TimeSlot.java
- stores one day and one slot number
Lecture.java
- combines one subject, one room, and one time slot
Timetable.java
- stores all scheduled lectures
ConstraintChecker.java
- checks whether a lecture can be placed
TimeSlotGenerator.java
- creates all possible teaching slots and can shuffle them
InputManager.java
- reads user input and

Description

A Java-based Smart Timetable Generator that uses backtracking to create conflict-free university schedules with support for room allocation, faculty availability, and timetable visualization.

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