How to Make a Game in Java: Java 2D Gaming

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Mobile game developers frequently use Java to create their games. How to make a game in Java is covered in this guide.

There has been Java for some time. Moreover, it shouldn’t be a huge surprise, given how adaptable the language is and how much rich open-source content is available. Learn Java’s core, the basics of Android development, etc., before creating a Java game. 

For more information about creating games with Java, keep reading.

How to Make a Game in Java: A Beginner’s Guide

Because Java is simple, beginners can quickly learn to produce reusable code for various programs and move between computers. Furthermore, Java is simpler to create, debug, understand, and compile than programming languages like C++.

java game development

Furthermore, it would be best if you grasped the fundamentals of this language’s coding to begin learning Java game programming. Additionally, plenty of new work opportunities will become available to you. Moreover, focusing on and studying the language will be simpler if you know you can get work in game development. Furthermore, let’s also discover how to make a game in Java.

Check this out: Fun With Code: Exploring JavaScript Games Code

How to Make a Game in Java?

Follow these instructions to learn “how to make a game in Java.”

Start by learning Java Core

  • Study the OOP fundamentals. What are inheritance, encapsulation, polymorphism, and object? Inner classes, interfaces, and classes.
  • Java Collection Framework includes several classes and interfaces that can represent a collection of objects as a single entity.
  • Learn how to use the List, Map, and Set implementations of the Java Collections and Map interfaces to access data structures.
  • The Java Exception mechanism makes it easier to find bugs in programs. Additionally, all exception classes are Java.lang subtypes.Special case class.
  • Java uses streams to carry out input and output actions. Data appears to be flowing continuously in a stream.
  • Java multithreading is a challenging subject. Furthermore, even the most minor task could be difficult for a novice using the Thread API. However, it is crucial and enjoyable to use once you learn how.
  • And other fundamentals of theory.

Master the fundamentals of Android Development

The official Android website is a fantastic source of information for developers. Furthermore, you can follow the tutorial to create your first Android app. Additionally, learning about game elements like sound, graphics, and physics would be beneficial if you are familiar with Java Core.


Moreover, we suggest enrolling in CodeGym‘s Android app development for beginners course if you prefer to study with a tutor. Additionally, you can start at the very beginning and explore the fundamentals of programming before moving on to mastering Android development. Alternatively, if you are already familiar with some programming languages, you can start learning Android immediately. Course content includes:

  • twice-weekly mentored online lectures;
  • support in a Slack chat from CodeGym and your mentor
  • the development of four complete Android applications;
  • debugging in real-time;
  • extensive final project;
  • completion diploma for the course.

Study libGDX

A framework for creating cross-platform games is called libGDX. As a result, you can create a single code that runs on Windows, Linux, macOS, Android, iOS, and the Web. Moreover, it’s written in Java and offers a tonne of great functionality, such as sound, asset handling, storage, drawing APIs, and so on) to make game development a lot simpler.



Furthermore, there is enough documentation to get you going. Additionally, LWJGL supports cross-platform APIs for making music and sound effects. Moreover, the open standard for cross-platform, parallel programming is OpenAL and OpenCL.

Now you know all the steps for “how to make a game in Java.”

See also: Innovative Ideas: Top Java Project Ideas For Final Year Project

Java 2d gaming (Flappy Bird Redux)

Here is the starting code for making a game in Java.

Import java.awt.Dimension;

import java.awt.Image;

import java.awt.Toolkit;

import javax.swing.*;

public class TopClass {

//global constant variables

private static final int SCREEN_WIDTH = (int) Toolkit.getDefaultToolkit().getScreenSize().getWidth();

private static final int SCREEN_HEIGHT = (int) Toolkit.getDefaultToolkit().getScreenSize().getHeight();

//global variables

//global swing objects

private JFrame f = new JFrame("Flappy Bird Redux");

//other global objects

private static TopClass tc = new TopClass();


* Default constructor


public TopClass() {



* Main executable method invoked when running .jar file

* @param args


public static void main(String[] args) {

//build the GUI on a new thread

javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {


//create a new thread to keep the GUI responsive while the game runs

Thread t = new Thread() {

public void run() {

//here, we will call a function to start the game








* Method to construct the JFrame and add the program content


private void buildFrame() {

Image icon = Toolkit.getDefaultToolkit().getImage(this.getClass().getResource("resources/blue_bird.png"));

f.setContentPane(createContentPane()); //adds the main content to the frame

f.setResizable(true); //true, but the game will not function unless maximized!




f.setMinimumSize(new Dimension(SCREEN_WIDTH*1/4, SCREEN_HEIGHT*1/4)); //set to prevent collapse to tiny window upon resizing

f.setExtendedState(JFrame.MAXIMIZED_BOTH); //maximize the JFrame

f.setIconImage(icon); //set the icon


private JPanel createContentPane() {

topPanel = new JPanel(); //top-most JPanel in layout hierarchy

return topPanel; //return a blank panel



Don’t stop learning; keep practicing

Furthermore, you must continually develop your talents as technologies advance, people’s interests change, and they grow more demanding. Additionally, keep in mind to divide your time between reading up on subjects and performing practical activities, giving practice more time. Moreover, that’s how you will learn to make a game with Java.

What to consider when studying Java?

Furthermore, do you recall watching babies struggle to walk before repeatedly getting back up? Moreover, programming follows a similar pattern in that it is valuable. Again, making applications is everything! You can only be confident that you understand an idea if you put it into practice.


Furthermore, if you are familiar with its fundamental concepts, you can only go on to the next level and experiment with Java’s more complicated features.

git and GitHub

Additionally, git is the most popular version-control tool for keeping track of changes made to computer files and organizing collaborative work on those files among numerous individuals.

git and Github

Furthermore, the most extensive website for hosting and collaboratively developing IT projects, GitHub, should be known to every professional. Additionally, you may practice creating games once you’ve gotten the hang of developing Android apps. Furthermore, numerous written and video guides on creating easy games are available online.


How can we begin developing games in Java?

It's easy for beginners to utilize Java for game production once you understand the basics. Furthermore, it only needs a bit of commitment, perseverance, and practice. Moreover, create a learning strategy and use online forums, practical courses, theory classes, and video tutorials to guide you.

Do you believe that planning a game should come before programming?

Most concepts, like game planning, should be finished before you begin programming because you will undoubtedly conceive of more capabilities.

Is Java a suitable language for game development?

Non-mainstream game development companies frequently use Java to create mobile games. Additionally, most of the best portable games in the world were made in Java.

Can a Java method be a game?

The Java compiler must be static and public to recognize and use the primary method. Additionally, strategies like fields can be made static or non-static, private or public.


We hope that this guide on how to make a game in Java was helpful to you. Furthermore, it’s easy for beginners to begin using Java for game production after they understand the foundations. Additionally, it only needs a bit of commitment, perseverance, and practice.

Create a learning strategy and use online forums, practical courses, theory classes, and video tutorials to guide you. Moreover, you can start looking for junior game developer employment and internships once you have a firm grasp of Java. Furthermore, once you land a job, stay updated on the newest trends to ensure you consistently perform at your best.

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