Top 20 Java Projects & Topics for Beginners 2021

What are the best java projects for beginners is a question I frequently get from my readers. If you’re just getting started with java and want to get some hands-on coding experience, I’ve put together a list of java projects for you to look at.
Students can benefit from the java projects below by submitting them to colleges and universities. I recommend that you create the project on your own. I believe that planning ahead, i.e. doing practical hands-on coding, will help you advance in your career.

When starting out in the world of programming, one of the best languages to learn is Java. The main reason for this is that Java is an OOP (Object Oriented Programming) language, which makes it more realistic. Despite the fact that it was first released in 1992, Java is still widely used for software development in a large number of companies around the world. But, before we get into some awesome java projects for beginners in 2021, let’s take a look at why java is so popular.

Because of the following factors, Java is in high demand in real-world applications:-

For the conversion of a high-level language into machine code, Java uses both a compiler and an interpreter, unlike other programming languages. The compiler generates Java byte code, which is a type of intermediate code that appears the same across all platforms. The Java Virtual Machine, or interpreter, converts Java byte code to machine code and then executes it on the host machine.
Java is much closer to the real world than most other languages because it is an object-oriented programming language. The OOP paradigm has many features, including abstraction, encapsulation, inheritance, polymorphism, and dynamic binding.
By its very nature, Java’s memory management is quite robust. Java takes care of garbage collection automatically, so the user doesn’t have to. Java also does away with pointers, handling all address-based operations without the need for the user to worry about it.

20 Java Project for Beginners

1. School Management System

Most people have probably seen something similar in their daily lives. You notice your teacher keeping track of your attendance on a sheet, providing feedback, and uploading assignments, among other things. Combine everything, and you’ll have one fantastic project to add to your portfolio! The functionality of a project of this size should be divided into three parts, depending on the type of user (which is identified at the time of authentication). These are some of the users:

Students: They are built to be consumers. They use their username and password to access their data, download assignments, upload solutions and projects, respond to feedback, and so on.
Teachers: Teachers are built to be givers. They log in to provide information about students, such as feedback, attendance updates, communication with students, and assignment uploads, among other things.
Administrator: Administrators are hierarchical elements that serve as a link between teachers and students. They are the system’s masters, creating and editing account information, managing a large inflow of data, and checking the status of any submissions, among other things.

This project is highly customizable, and it only gets more vibrant as new features are added. The greater the number, the better.

2. Food Ordering System

We’ve all eaten in restaurants or placed takeout orders. Isn’t it true that taking our order and having our food (and later, our bill) delivered takes a long time? This problem is also helped by automation. One well-designed piece of software can significantly reduce queue times and thus increase the number of customers served per day.

The main functionality is to allow the user to place an order for food and have it sent to the restaurant for which the order is being taken, as well as to display the user’s bill. This project would benefit greatly from a more sophisticated user interface and other minor features.

3. Media Player Application

Java has many advantages, including the ability to work with a wide range of file formats. Haven’t we all used some sort of media player to listen to music or watch movies? Designing and developing such a media player will be difficult, but it is something that one can do if they want to learn more about the Java language. Although developing a media player application may necessitate extensive Java knowledge, figuring out how to do so can be extremely rewarding. As a result, it’s a fun Java project for new programmers.

This is, once again, one of those projects that is designed to be extremely adaptable. A media player can be built into an Android application or a desktop application. You can also choose whether it plays only audio or both audio and video.
Displaying information about the video or audio being played, as well as the ability to create playlists, should all be on the to-do list.
(Be aware that this project may take some time to complete because it necessitates a thorough understanding of multithreading and file handling.)

4. Text-based RPG (role-playing game)

If you’ve decided to dive into Java, this is probably one of the coolest things you can build. The concept is to allow the user to navigate their way through a video game-like environment. The only concept is that at every point in the game, players must choose their next move. The next choice is presented continuously depending on the outcome of the move until one of the conditions to end the game is triggered, which displays the player’s score and how long they survived.

This project is one of the best suggestions for people to start with because it requires little to no effort to complete but can be surprisingly difficult to handle. Think you know everything there is to know about branching instructions and decision-making statements? This is one sure-fire way to see if it works.
Because of the project’s flexibility, the story of the game, as well as its decisions and outcomes, can be designed in a variety of ways. It is entirely up to the user to decide how they want to proceed.

5. Food Ordering System

The main functionality is to allow the user to place an order for food and have it sent to the restaurant for which the order is being taken, as well as to display the user’s bill. This project would benefit greatly from a more sophisticated user interface and other minor features.

6. Airline Reservation System

This project is probably one of the best ways to try out the concepts of OOPs for yourself. Haven’t we seen systems where we make reservations or cancel flights on a regular basis? As a project, designing a similar system can be a great way to boost your resume! The system should be web-based, with all of the functionality that a traditional reservation system would provide.

After entering the required information, one should be able to book certain flights. Reservations should be saved somewhere so that they can be retrieved for a specific user at a later date. Reservations should also be able to be canceled if the reservation being canceled exists; otherwise, an error should be displayed.
This project also puts your database skills to the test, as it necessitates a large amount of data to be dumped and fetched.

7. Digital Clock

A digital clock is another simple and easy-to-make project you can show off. If a visually appealing design is desired (which is very helpful! ), some knowledge of UI design is required. To achieve the desired effect, some event handling and periodic execution functions are required.

To improve the project’s output, additional features such as other modes, such as a stopwatch and a counter, can be added. If that wasn’t difficult enough, adding the ability to switch between time zones and have the time displayed in the time zone selected will be even more difficult.

8. Chatting Application

What does a “chatting” application have to do with a list of Java projects? It turns out that Java also has a lot of support for network-based libraries. This application, however, will need to communicate through sockets rather than basic request-based communication. There are a variety of ways to do this, and it’s probably one of the best ways to learn about the networking capabilities of Java.

A good user interface can help you improve your project and make it more appealing to your users. However, in addition to normal chat messages, it would be cool if file transfer support could be added. After all, messaging apps wouldn’t have progressed as far as they have if you couldn’t send songs and funny videos to your friends and family.

9. Link Shortener

This may appear to be overly simple, but it is something that should be included in your portfolio (if you want to be a good programmer, that is). A good link shortener can help you prove not just your Java skills, but also your understanding of data structures and algorithms, which is the cruel underlying skill that most people avoid when starting out in programming. The main concept required for building something is hashing, but the challenge is getting it to work across all browsers and point to the correct page rather than an error.

There should be some validation to see if the link inserted is a valid link, and then the appropriate logic to “shorten” it should be applied. Yes, there should be a proper error message informing the user that the link they entered is incorrect.
One improvement that can be made here is to add a history to the application for storing previously shortened links, as well as an option to directly copy the shortened link to the clipboard.

10. Memory Game

This could be one of the most original projects one can think of while learning the game. The graphics library in Java allows you to create a variety of small video games that can easily be included on your resume.

A matrix containing a large number of smaller boxes will be available in a memory game, and the user’s task will be to win the game by matching patterns on specific boxes. When the user clicks one box, it should reveal its pattern, if the user clicks another box with a similar pattern, both boxes should be flipped and the score added. Both boxes should stop showing their pattern if the second box flipped does not have a similar pattern.

There’s a lot of potential here, as well as a lot of ways to improve it. For example, there could be a way to keep track of how many moves are required, as well as a leaderboard system for hosting people with the best memory. If a “easy mode” is desired, a method for storing moves and moving back and forth between them can be added.

11. Electricity Billing System

The primary goal of software development is to increase the efficiency of a process. One of the most important systems in our daily lives that is in desperate need of automation is the electricity billing system. Bills have been generated manually after readings have been taken until now. Work to automate reading metres and generating bills will go a long way toward ensuring that work is completed in the most efficient manner possible while maintaining the accuracy of the figures quoted on bills.

There are numerous additions that can be made to keep this project on top – and the user has complete control over how and when they are implemented. For a flexible project like this one, there are no hard and fast rules.

12. Temperature Converter

Building conversion tools is one of the best ways to get started with Java, and what could be simpler than a temperature conversion tool? The mathematical formula for converting from Fahrenheit to Celsius and from Celsius to Fahrenheit is already known. All you have to do is take the value to be converted and the conversion to be performed as input, and then output the converted value.

There’s also the idea of sanitising the text being entered and displaying an error if the values are incorrect. In other words, if a non-numerical value is entered as input, a proper error should occur.

13. Bank Management Software

One of the most basic pieces of software to work with is one that allows you to manage your bank accounts and transactions. Every beginner should begin by designing a robust system that allows them to engage in transactions. The proposed system is a web-based project that enables you to perform all of the functions that a bank would normally provide.

A user should be able to deposit and withdraw money from a specific account whenever they want. A validation should be in place to allow only a certain amount of cash inflows at any given time, as well as withdrawals if the balance is sufficient. There should also be a monthly interest calculation and addition to the balance.
This project could benefit from a number of enhancements, including the addition of support for multiple types of accounts. A recurring deposit account, for example, should not allow withdrawals until the maturity date, and the amount should be automatically added to the account after the maturity date. This is where we started because it’s still one of the most popular java projects for beginners.

14. Supermarket Billing Software

Before the goods are packed, most supermarkets use software to prepare the final bill. Someone who is just learning Java can easily design this software. (It’s worth noting that most of the actual billing software used in supermarkets is written in Java.) This billing software adds up the amounts for individual items to arrive at the total amount that the customer must pay. The user should be able to change the number of individual items and the price of each item. There should also be a way to remove the item from the list entirely.

If you want to expand your project, consider adding an option to export existing bills or a feature that allows you to save previous bills in memory.

15. Quizzing app

Apps are one of the more subtle projects that Java allows you to create. Google designed Android to be built on top of the Java ecosystem, allowing developers to use all of the Android OS’s features while developing apps. A quiz app for distributing questions to friends and family to solve is probably one of the best apps to get started with the Android ecosystem! This project has a lot of potential.

When it comes to extensions, you can get creative if you want to improve this project. The possibilities are endless: user authentication, exporting a set of questions from the app for use in other quiz apps, an online ranking system based on the number of people who have taken the quiz – the list goes on and on.
(It’s worth noting that the extensions may necessitate some Android platform knowledge, which most Java beginners won’t have.) So, if you’re more interested in app development, this is a fun Java project to begin with.

16. Network packet sniffer

A packet analyzer software called a network packet sniffer is used to monitor network traffic. It’s a web-based Java application that allows for web-based network packet monitoring across the system network. The Admin can capture network packets and analyse data received and sent from/to the network using this software application. The software assists in capturing the source and destination addresses of network packets.

The main goal of this project is to create a set of rules that will prevent hackers from infecting system software with viruses and malware during runtime. Unlike traditional network hosts, which only monitor traffic directed solely at them, this software captures each packet and decodes it for analysis as data streams pass through a network. The following are some of the software’s most commendable features:

Network monitoring 24 x 7.
capturing packets in real time
Analyzing advanced protocols
Analyzing complex networks
Analysis at the packet level is performed automatically.
Packet decoding in its entirety

17. Online medical management system

Another web-based Java project aimed at establishing a direct line of communication between physicians and patients. “Virtual Medicine Home” is the name of the project. Patients can use this app to book online appointments with their preferred doctors, and doctors can use it to offer healthcare advice, e-prescriptions, and view the patient’s medical records, lab reports, and other information. Users can also use the app to find and connect with blood and eye donors. This is one of the best Java project ideas available right now.

All medical management operations are manual in traditional healthcare service systems. The problem is exacerbated in remote and rural areas, where there is a lack of medical infrastructure, qualified healthcare professionals, and advanced medical equipment. This is one of the beginner java projects. Furthermore, no provisions exist for the recording and storage of medical data. By directly connecting doctors and patients, this online medical management system can help solve all of these issues.
There are two modules in the application: an admin module and a doctor module. The online software system is managed by the Admin module, while the Doctor module allows doctors to interact with patients. Anyone with an Internet connection can use this app’s services from any location.

18. Online Survey System

This is a project for creating an online survey system that is built on the Java platform. The project’s goal is to create an online platform that can effectively collect the opinions of a survey’s target audience via the Internet. This app can send email notifications as well as launch online surveys. This application can be used by any company in any industry to conduct online surveys to gather information from their target audiences.

Only users who have been authenticated by the Admin can vote and express their thoughts on a particular issue or topic in this survey application. The software will collect the votes once the users have submitted them using the ratio button or checkbox. After the survey’s deadline, it will automatically add the votes to each alternative and display the results.

The following are the main features of this online survey system project:

It’s written in Java and uses the MySQL server database.
It can conceal users’/voters’ identities, allowing it to collect all data in confidence.
It uses a ratio button or a checkbox to collect votes.
It is inexpensive to install and can be done anywhere.
Because the survey is conducted online, it saves several hours of manual labour as well as a significant amount of money.

19. Smart city project

The Smart City project is a web-based software application that stores all of a city’s critical information. Cities and urban areas are experiencing a massive influx of people seeking jobs, education, and even a better way of life. People are unfamiliar with the city’s main facilities, attractions, and services in the days following their relocation. The smart city project aims to address this by developing an integrated platform for storing vital and related information that will assist newcomers in navigating a city.

Visitors, students, and job seekers will be able to access information such as hotels, rental facilities, transportation services, healthcare services, airline ticket booking, shopping landmarks, emergency helpline, and basically anything else they might need when visiting a new city. It’s similar to a visitor’s smart city guide.
Users can access the application via the Internet and search all of the smart city web pages for the information they require. Users can see a city’s entire map, as well as its most important landmarks. This will make getting around the city a lot easier for them. Mentioning java projects in your resume can help it stand out from the crowd.

There are five modules in the smart city application:

The administration module is the application’s central controller. It oversees the maintenance of the other four modules and uploads all new information to the site. It also authenticates user profiles and uploads all new information to the site.
Tourism module – As its name implies, this module is responsible for all tourism-related operations in the city, including hotels, restaurants, tourist attractions, ATMs, theatres, and so on. The primary user of this module is a user who has been authenticated by the administration module.
Student module – This module is designed to assist students in getting around the city. It provides students with all academic information, such as the locations of the best educational institutes, libraries, coaching centres, technical colleges, universities, and colleges.
Jobseekers module – This module contains vital information about the city’s job opportunities. Users have access to a wide range of job-related data from a variety of industries. The main goal of this module is to assist the city administration in addressing the city’s unemployment issues.
Business module – This module focuses on providing news, information, and opportunities in the city related to business. Users can get information on the city’s trade and business centres, as well as industries.

20. Library management system

This software project is written in Java and uses a Microsoft Access database. Through an integrated computerised system, it is designed to manage and maintain libraries in any educational institution. While handling the typical day-to-day tasks of a library, the library management software will allow librarians to work more productively.

Everything is done manually in a traditional library management system. All library operations and records are done on paper, including the number of books, genres of books, names of books, records of students who have issued/returned books, and so on. This procedure, of course, necessitates a significant amount of time, effort, and even human resources. This is ideal for students looking for final year java projects.
The proposed project aims to address all of the issues that come with traditional library management systems. It eliminates the need for manual record-keeping by storing and managing all library records in a computerised database. The software is divided into modules, each of which is responsible for handling and managing specific library operations. Mentioning Java projects in your resume can help it stand out from the crowd.
Librarians and students do not have to search the entire library for a book if they use this software application. They can type in the book’s title and author, and the system will display a list of all the books that match that search keyword/phrase. One of the best features of this library management software is the ability to create custom reports.

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Conclusion

Only by putting in a lot of time and effort can one become a good programmer. No matter how good you are, unless you can demonstrate your abilities in a practical setting, no one will believe you. Nothing beats getting started with a few simple Java projects for beginners to demonstrate that you understand the language’s “mechanics.”

Remember that breaking into the programming world is much more difficult if you have no prior coding experience. Coding a few Java practise projects can help mitigate this and pave the way for a career as a Java developer, which is currently one of the most in-demand roles in the IT industry.