Java ATM Simulation – Project Report
Developer: Mohammed Arsalan Ahmed Language: Java
- Project Overview
This project simulates a basic ATM system in Java. It demonstrates key concepts such as random number generation, user authentication with PIN verification, and account balance display. The program is console-based and supports multiple languages (English and Hindi) for user interaction. It is designed for educational purposes, helping to understand Java programming fundamentals and interactive system design.
- Objective
Simulate an ATM system for learning purposes.
Implement PIN-based user authentication.
Display a randomized bank balance after successful verification.
Handle correct and incorrect PIN entries gracefully.
Gain practical experience in Java input/output, control structures, and threading.
- Features
Language Selection:
User can choose English or Hindi for display messages.
PIN Generation & Authentication:
Generates a random 4-digit PIN.
User must enter the correct PIN to access the account.
Incorrect PIN entries are handled with an access denial message.
Bank Balance Display:
Displays a randomized account balance after successful PIN verification.
User Feedback Simulation:
Uses Thread.sleep() to simulate processing time and authorization for realism.
- Tools & Techniques Used
Java Random class: Generate PIN and bank balance
Scanner class: Capture user input
Control Structures: if-else and switch-case for logic handling
Thread.sleep(): Simulate processing delays
Console Output Formatting: Display interactive messages in multiple languages
- Methodology
Prompt the user to select a language.
Generate a random PIN and display it to the user.
Prompt the user to enter the PIN.
If the PIN matches, simulate authorization and display the bank balance.
If the PIN is incorrect, display access denied after a simulated authorization delay.
- Skills Demonstrated
Java programming fundamentals
User input handling and validation
Random number generation for dynamic data
Simulating real-world system delays using threading
Multilingual console interaction
- Outcome
Upon completion, this project demonstrates the ability to:
Create interactive console applications in Java
Implement secure user verification logic using random PINs
Simulate real-world processes like ATM authorization and account balance retrieval
- Future Enhancements
Add multiple user accounts with persistent storage
Connect to a database for real account balances
Add deposit and withdrawal functionality
Enhance security with masked PIN entry
Implement GUI interface for a more realistic experience