I created a simple 2D game in java and would like my friends to be able to play it - what is the easiest way to deploy this game or perhaps embed it in an html page?
I looked into Java Web Start but many of the steps are confusing me: https://docs.oracle.com/javase/tutorial/deployment/webstart/deploying.html
Any help would be appreciated! Is there a way I could just convert my application into a jar file and share it with my friends? If so, how would I go about doing this?
Go to the left in eclipse
right click the project you are working on
click export
open the java folder
select runnable jar file and click next
have the launch configuration be whatever class has the main method
if you are using external libraries select package required libraries, otherwise choose extract required libraries
change export location to where you want it to be
click finish
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I need some help with IntelliJ. I am fairly new to programming, and I have some experience with the IDE but I am by no means a know-it-all when it comes to IntelliJ.
I have 3 Java files (without their respective class files). When I open intelliJ it asks me:
Create New Project
Import Project
Open
Check out from Version Control
I click on open, IntelliJ opens up a file location, I click on one of the three Java files to open, and I drag the other two one by one (they open in their separate tab).
I cannot figure out how to run them. It is likely that I need to create run configuration and I don't know how to do it. I know how to create a new project and get everything working, but I don't know how I can get the files working if I just open them. Can someone tell me how to create the run configurations to run the files? Please and thank you.
IntelliJ IDEA is a great IDE!
This is what I would do:
Select File/New/Project... in the menu. You will get a new modal window.
Then select Java on the left, make sure that you have your JDK selected (top right), it not there, create it right from the window. Click 'Next'.
Just go 'Next' on the 'create project from template' step.
Then type your project name and select a folder for it. It will create a new project.
After that, copy your java files into /src folder using drag-and-drop in IDEA or just a file manager you like.
Now you have an IDEA project with your source code in it. You might need to sync your IDEA project, use File/Synchronize for that.
Finally, you can right click on you java file and 'Run' it from IDEA.
It the project fails on compilation you might need to add required imports and libraries, but that depends on your code. IDEA will highlight all the errors.
first time posting here, java beginner.
I made a basic calculator that receives user input. Is there a way to export my program to make a runnable desktop file?
My IDE is IntelliJ.
Thanks in advance!!
Assuming you are building a JavaFX app:
The easiest way to deploy your app is to go to File>Project Structure>Artifacts.
Add your available elements (if you have any extra images etc) into your output root, and click on your jar file. At the bottom of the window you'll see options to either create a manifest file or modify an existing one.
The manifest file describes the first class to load in your program (the starting point) as well as the locations of any third party libraries you may have included in your program.
You will also have a JavaFX tab that you can use to set some initial parameters for your app, such as the title, version, and whether you want to deploy any native bundles (eg: .exe for Windows, .deb for Ubuntu etc)
Once you have configured the important parameters you want, save your settings (or just select any field and click enter) and go to Build>Build Artifacts>Action: Build
IntelliJ should generate an executable .jar file and any native bundles you selected. The native bundles can just be double clicked, and the jar file can be run using a JRE.
On blog.jetbrains.com they show the steps with some screenshots.
Note that this entire process is called deploying your app and there are a variety of tools and methods to do it. I just described what I believe is the simplest way.
I want to use the Light Weight Java Gaming Library(LWJGL) to my Netbeans so I can use it in my Java application. The only videos that I can find show the zip file that they downloaded with separate src and doc folders inside of it. The zip file that I download has everything in one directory. I went to lwjgl.org/download and clicked on Stable and then Generate Bundle. What am I missing?
I had the same problem recently.
So, to begin you want to go to Tools in the context menu and select Libraries (as shown). Next you can add a new library and name it e.g. LWJGL-3.1.1 confirm with ok. You can find 3 tabs in the current window Classpath, Sources and Javadoc. There you add your jar files accordingly (in the downloaded .zip file you find .jar files with different names like lwjgl-{whatever}-sources.jar or lwjgl-{whatever}-javadocs.jar) make sure you put them in the right place. You have to repeat this process for all of the jar files you want. The javadoc files are not required but recommended. Make sure you also collect all the native .dll files and merge them in a folder called \natives. You find them in these jar files that are called like: lwjgl-{whatever}-{your-OS}.jar.
Once you have finished the setup for your library right click on your current project and choose Add Library.... In the window that pops up you scroll down until you find your library that you have just created and you are almost done now.
Last but not least go to the project settings. Select Run and make sure that you set the classpath in VM options to something like in the image: -Djava.library.path="C:\java_workspace\LWJGL Library 3.1\natives. Now this classpath tells netbeans where your native files are located. Your \natives folder that you should have created in the beginning is where this path should lead to. That's it. This is all you have to do for a setup without the use of maven, gradle, ...
You can test if it is working with the code provided by LWJGL HelloWorld example.
I hope this solved your problem.
Best regards.
This is honestly a tiny problem but it's keeping me from proceeding with my small Java practice app.
I'm currently practicing making an API call in Java. I was trying to create a simple class file called "Film". However, when I try to create it as a class-file, Intelli-J keeps telling me that it is unable to create a class-file. I'm trying to set this file up in a folder called "models". All of these class files are going to be utilized as part of an app that performs API calls.
Is there some naming convention I haven't followed? I've been Googling but haven't really found anything.
More directly, based on what #Vishal Jumani touched on, you need to tell IntelliJ what directories are 'source' or 'test' directories.
A directory structure you can use as an example, but you can use whatever you wish.
Right click on the directory you wish to mark as 'root' --> find 'Mark Directory As' --> Select 'Sources Root'
Now you should be able to add java classes in the directory without IntelliJ interrupting you!
This would usually be because of the way your project is setup. It may not be setup correctly to indicate where your source code is.
To setup your project, in the Project Tab, click on the top most folder and select F4. This should bring up the Project Settings dialog window.
Now click on Modules in the LHS, and then select the Sources Tab on the RHS
Select your src folder and click on the Sources button, to indicate this is your source folder. Now IntelliJ is aware that this is where your code is.
Click on Apply and OK. This should close the Dialog Window.
Now right click on the src folder and then select New -> Java Class to create your Java class
I am looking for a way to store files inside the jar (and extract them), but it must work when running/debugging from Eclipse as well.
explanation:
Storing files as in images that I want to use for an icon of a Frame. I hope it's clear now.
I still think that the question is a bit unclear.
What is it that you want to do? You can create and read from jar-files using JarInputStream/JarOutputStream, and you can also read files from jar-files that are on the classpath using Class.getResourceAsStream(String name)
I don not get your question clearly.
Eclipse can export runnable jar files , right click on the project name and choose export. Then from the dialog choose runnable jar file under java category.
Creating JAR file using Eclipse IDE is pretty much easy.
Follow the simple steps.
1. Right click on your project, which you want to create a JAR file.
2. Select Export from the context menu.
Eclipse understands Ant build files. Write a build file that (compiles &) Jar's the code at the same time and this becomes a non-issue.