“Our world, moved by Java” - Take a moment to ponder over this expression.
One of the most widely used programming languages, Java is used as the server-side language for most back end development projects, including those involving big data and Android development. Java is also commonly used for desktop computing, other mobile computing, games, and numerical computing. The popularity of Java is further evidenced with 90% of all Fortune 500 companies using Java.
Download 20+ development projects [free]4 reasons why software companies prefer Java for building enterprise applications
- The software industry embraced Java because it made development a pleasure, solved problems with distribution, and removed the pain of constantly porting across platforms.
- Since it is an object-oriented language; it’s robust and secure. Java programs are compiled independent of the platform in bytecode language which allows the same program to run on any machine that has a JVM installed. This is a natural and pragmatic approach to software design. Java objects encapsulate data and behavior so that code can be reused, which makes testing and troubleshooting easier.
3. Java’s usefulness compounded when people realized how it could solve their problems on servers – bringing productivity, performance, and scalability to new levels.
4. From internet distribution of software to server-side scaling of multi-tier architecture to taking advantage of constantly improving hardware architectures – to the cloud-native deployments, and a whole lot more, Java has established its supremacy over other languages.
“Time invested in learning the Java programming language is time well-spent.”
Companies will have a preference for applicants who have a passion for computer science. Showing that you have personal computer science projects is one of the best ways to show that you have a passion for the job, and are not just there for a paycheck.
Many developers have their own side projects, so don’t be left behind.
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Top 7 Interesting Java Mini Projects for CSE
1. Notes & Password Manager
Password managing and note-taking are some of the most overlooked virtual activities in today's digital age. Various companies are constantly adding new features to note-taking and password management.
So, instead of having and maintaining two different apps in your system, you will be developing a single app that can perform both of these activities.
Notes & Password Manager is an android application that can be used to take notes anytime and generate strong passwords whenever you need to create new passwords.
The first part of the app, i.e. the note making app, may be mainstream for some of you developers, but the password management part is an interesting way to level up your Android Development skills.
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2. Contact App Android
The main aim is to build a Contact App which will allow users to register/login, locally store contact details such as name, contact photo, phone number, and help in deleting/managing contacts in a simpler way. Moreover, this app will also have call functionality as well. This project employs usage of SQLite3 database for local storage of data.
This project will help you build apps that are heavily database dependent and also help you get an enhanced experience of using various viewing widgets available in Android (like Recyclerview here)
Must-Try!
Build a bookmarks keeper in 10 hours and grow your skills in SQLite, Bash scripting, Conditional statements, and more - Check it out!
Advance your project building skills by building a ToDo web app. This project will enhance your knowledge in databases and web development.
3. Breakout Ball Game
Java is widely used by game development companies and for creating mobile games. And this fact shouldn’t come as much of a surprise, given how versatile the language is and given its rich collection of open-source material.
Many of the world’s top mobile games have been developed in Java. Minecraft, Mission Impossible III, and Asphalt 6 are just a few popular names you are probably familiar with.
In Breakout Ball Game, a layer of bricks lines the top third of the screen and the goal is to destroy them all. A ball moves straight around the screen, bouncing off the top and two sides of the screen. When a brick is hit, the ball bounces back and the brick is destroyed. The player loses a turn when the ball touches the bottom of the screen; to prevent this from happening, the player has a horizontally movable paddle to bounce the ball upward, keeping it in play. The player uses the platform to keep the ball running. The goal is to break the bricks without missing the ball with your platform.
Build another cool game using Python - Multiplayer Connect4
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4. QuizUp - A Quiz Application
The quiz format for exams has been standard for a long time and still persists to be. The reason for this is - the efficiency and feasibility it carries with it.
What if you could build one? This project aids you to build a simple Android application where students can take their tests in a quiz format. The application is developed using Java and integrated with Firebase.
Here, Firebase will not only be used for deployment but more importantly, the student (examinee) data will be stored, manipulated, and the results can be fetched accordingly.
Know more about the projectMore projects to learn Firebase essentials
20 Best Mini Project Topics. Complete them by following the step-by-step instructions. Download Projects [Free]
Don’t miss! More Android project ideas
5. Library Management System
Management systems are used in all institutions. It may be digital (software) or analog (record books/ledgers), but everybody surely uses it.
Today data is power.
But having said so this data should also be well-managed for clean and accurate data to exist at all times.
One such system is the Library Management System, which is used to keep a record of books present in a library. This system consists of information regarding Books, where we can perform all the operations that are required in an actual system such as CRUD operation, advanced search, book issuing, and also to store the information (in an encrypted format) within files using the process known as Serialization.
Learn concepts like serialization, deserialization, and CRUD operations by building real-world projects - Download NOW
6. bFit-A Cognitive Game
People spend hours at the gym, lifting weights, doing cardio exercises, and following proper diets to keep their bodies physically fit. But what do people do to keep their brains in shape?
Brain exercise is an approach to train the brain to perform at optimum levels and be sharp and strong even as old age acts to deteriorate your memory. This game is like an exercise for the brain. Games of these kinds are categorically termed as cognitive games.
bFit cognitive game is a reflex-memory testing game. Which means the user has to follow along and click the colored (green) tiles as they keep popping. There will be a scoreboard keeping track of your clicks :p
The app can also be found at the Amazon store. If you face some issues with the Amazon store, you can download Bfit_2.32 from here instead.
Work on these 5 internship-grade projects and land a job in backend or full-stack - Guaranteed!
7. Customer Relationship Manager
Customer Relationship Manager web application is widely used by managers to store, retrieve and modify their customers' information.
Spring is one of the best frameworks for back end development while working on Java since it uses the MVC design pattern. For the front-end side, HTML, and CSS has been used here. The purpose of the Spring framework is to allow designers and developers to focus on building a unique feature for their web-based projects rather than re-inventing the wheel by using the very basics of Java.
Learn how to work with Spring Boot by completing a series of fun activities. Check it out →
After completion of the project, you will learn how to use CRUD operations, MVC design pattern and Object-relational mapping framework (by connecting the Back End web app to a database) majorly.
You will also be familiarised with HTML, CSS languages by then. The main context of this project is to learn building a web based CRUD application using Spring MVC.
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21 Skills To Gain From The Above Java Projects
- Java Swing - Swing in Java is a lightweight GUI toolkit that has a wide variety of widgets for building optimized window-based applications. It is built on top of the AWT API
- Java AWT - The Abstract Window Toolkit (AWT) is Java's original platform-dependent windowing, graphics, and user-interface widget toolkit, preceding Swing.
- JFrame - A frame, implemented as an instance of the JFrame class, is a window that has decorations such as a border, a title, and supports button components that close or iconify the window.
- JPanel - The JPanel is the simplest container class. It provides space in which an application can attach any other component. It inherits the JComponents class.
- SQLite - SQLite is an open-source relational database i.e. used to perform database operations on Android devices such as storing, manipulating, or retrieving persistent data from the database. It is embedded in Android by default. So, there is no need to perform any database setup or administration task.
- Recyclerview in Android - The RecyclerView is a widget that is a more flexible and advanced version of GridView and ListView. It is a container for displaying large datasets which can be scrolled efficiently by maintaining a limited number of views. The RecyclerView class extends the ViewGroup class and implements the ScrollingView interface. It is mostly used to design the user interface with fine-grain control over the lists and grids of Android applications.
- Firebase - Often used for deployment purposes, here you will be using it for more pressing applications like authentication and data handling.
- Spring Framework - Spring is the most popular application development framework for enterprise Java. Millions of developers around the world use Spring Framework to create high-performing, easily testable, and reusable code. It is an open-source Java platform. Currently, Spring Boot is in high demand in the enterprise world for high availability and scalability purposes.
- Spring core - Spring Core is the core module that comes with an embedded servlet container (IOC Container) and would facilitate the core functionalities of spring. You can think of Spring Core as the core engine on which other modules would run.
- Spring MVC - A Spring MVC is a Java framework that is used to develop web applications. It follows the Model-View-Controller design pattern. It implements all the primary features of a core spring framework like Inversion of Control, Dependency Injection.
- Hibernate - Hibernate ORM is an object-relational mapping tool for the Java programming language. It provides a framework for mapping an object-oriented domain model to a relational database. Spring and Hibernate are two of the hottest and most in-demand web frameworks in the Java world and also two of the most essential skills for any Java programmer to get a job in the web development space.
- JDBC - Java Database Connectivity (JDBC) is an application programming interface (API) for the programming language Java, which defines how a client may access a database. It is part of the Java Standard Edition platform, from Oracle Corporation.
- ORM Framework - Object-relational mapping (ORM) is a programming technique in which a metadata descriptor is used to connect object code to a relational database. It transforms data between type systems that are unable to coexist within relational databases and OOP languages.
- Maven - Maven is a popular open-source build tool developed by the Apache Group to build, publish, and deploy different projects at once for better project management. The tool allows developers to build and document the lifecycle framework.
- JSP - JavaServer Pages (JSP) is a Java standard technology that allows developers to write dynamic, data-driven pages for their Java web applications. It is developed on top of the Java Servlet specification.
- HTTP - Hypertext Transfer Protocol (HTTP) is an application-layer protocol for transferring hypermedia documents, such as HTML. It was built for interaction between web browsers and web servers, but it can also be used for different purposes.
- MySQL - MySQL is a relational database management system based on SQL – Structured Query Language. It is used for a broad range of applications, including data warehousing, logging applications, and e-commerce.
- Java Collections API - The Java Collections API provides Java developers with a collection of classes and interfaces that makes it simpler to work with a collection of objects, e.g. lists, maps, stacks etc.
- Serialization - Serialization in Java is a mechanism of writing the state of an object into a byte-stream (to store the book data here). It is mainly used in Hibernate, RMI, JPA, EJB, and JMS technologies. The reverse operation of serialization is called deserialization where a byte-stream is converted into an object (to access the book data from stored files).
- Splash Screens - Splash screens are typically used by particularly large applications to notify the user that the program is in the process of loading. They provide feedback that a lengthy process is underway. Occasionally, a progress bar within the splash screen indicates the loading progress.
- Multithreading in Java - This is a process of executing two or more threads simultaneously to maximize utilization of the CPU. A multithreaded operating system may run several background tasks, such as logging file changes, indexing data, and managing windows at the same time. This is a very important and hot theory skill needed in especially Java industries.
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