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JPanel doesnt show up after generated as .jar java

I have a problem with a program i wrote. The Problem is, that when i compile and execute it from my programming environment, everything works and shows up fine, but after i generate a .jar out of it, the frame itself shows up, but the jpanel with icons inside the JTabbedPane doesn't. I used Images in some icons in the jpanel, in other jpanels where i didnt use icons, it works after creating a .jar. i think the problem is getting the icons from the folder where the .jar is in but i dont know how to do this better.
Already tried:
ImageIcon icon1 = new ImageIcon(getClass().getResource("refresh.png"));
JLabel label1 = new JLabel(icon1);
and
URL url = home.class.getResource("refresh.png");
ImageIcon icon1 = new ImageIcon(url);
JLabel label1 = new JLabel(icon1);
but nothing seems to work after the .jar is cretated
In programming environment:
As generated .jar:
I searched everywhere but i didn't find an answer to this. If you need some more code let me know.

Try reading the file from the resources folder like this:
ClassLoader classLoader = getClass().getClassLoader();
File file = new File(classLoader.getResource("refresh.png").getFile());
ImageIcon icon = new ImageIcon(file.toURI().toURL());
This will load the file from your classpath. For this to work, you will need to copy the file into the standard "resources" directory as shown in this example. And yes, you really do want to use this standard maven convention for storing files your application needs. It simplifies moving your project from development to other environments like test or production.

Displaying images within a jar file

I know this question has been asked before, but I have gone over all the solutions I could find and cannot make any of them work for me. I have a program in Eclipse that I am trying to export to an executable jar file. It is the first time I have done this. When I execute the jar, my program images do not show up. So I did some research and found I need to load them as resources, but I cannot seem to make it work.
Here is the code I was using to load the images without the jar:
private void initComponents()
{
// create an enterprise icon and make it invisible
enterpriseIcon = new JLabel(new ImageIcon("res/enterprise1.png"));
enterpriseIcon.setVisible(false);
}
I have all my images in a folder named res in my root project directory, and I told Eclipse to put this folder in the build path.
When the images wouldn't show up when running the jar file, I tried the following:
enterpriseIcon = new JLabel(new ImageIcon(getClass().getResource("/res/enterprise1.png")));
and
enterpriseIcon = new JLabel(new ImageIcon(Toolkit.getDefaultToolkit().getImage(getClass().getResource("/res/enterprise.png"))));
However, when either of these is run from within Eclipse, I get a null pointer exception. (I tried a few other things as well, but the above were the only solutions I thought I understood.)
Any help getting this to work would be appreciated.

Use Class#getResource to get the URL of your image inside the jar file
enterpriseIcon = new JLabel(new ImageIcon(getClass().getResource("/res/enterprise1.png")));

Try this. This works well for me :)
private void initComponents() {
try {
BufferedImage icon = ImageIO.read(getClass().getResource("/enterprise1.png"));
frame.setIconImage(icon);
} catch (IOException e) {
e.printStackTrace();
}
}

I was also facing the same issue till yesterday. I have got a fix for this. Let me share it with you.
In your Eclipse, go to your Project name.
Right your project name.
New -> Source file/folder
Name this Source file/folder as images
Now on your local machine go to the Eclipse workspace where your project
is physically present.
Copy ALL your images into the newly created
'images' folder right there only.
Now go back to Eclipse.
Right click on your Project -> Refresh
Now, wherever you are using images in your .java files , go to those lines and prefix the image location with images/
Example : XXX xxx = XXXX (example.jpg)
Change it with .... XXX xxx = XXXX (images/example.jpg)
BOOM !!
The images will be shown when you run the .jar file.
NOTE : Do not run the .jar file from cmd using java -jar AppName.jar
Instead, just double click the .jar file and you will be seeing the images.
If it works for you, kindly upvote. :)

Java images not appearing in JAR file [duplicate]

This question already has answers here:
Java Swing: Displaying images from within a Jar
(5 answers)
Closed 9 years ago.
Heres how i call the image
Icon logoOne = new ImageIcon("logo.png");
// LOGO
JLabel imageLogo = new JLabel(logoOne);
imageLogo.setPreferredSize(new Dimension(200, 50));
Its just added to a panel in a JFrame and works fine when running in eclipse but doesnt show up when exported to JAR.
can anyone help ?

When exporting your JAR file, you've to make sure you're also including the image files in your JAR file. For example: If you have a folder called 'res' containing the images, you have to check the checkbox before this folder in order to make sure this folder, and the images are being included.
You might want to add some trouble shooting code. For example: Add some code that prints in the console if this image file exists. Export your JAR file, run your JAR via the console/terminal and check the result. If this shows you the image doesn't exists, you know it's a problem with your exported JAR file.
You might want to try reaching the image as a resource steam, give the following code sample a try:
java.net.URL logoOneUrl = getClass().getResource("logo.png");
Icon logoOne = new ImageIcon(logoOneUrl );

When you call
Icon logoOne = new ImageIcon("logo.png");
You are reading the image from a file (see javadoc). When you export to the jar, this file is no longer available, so you need to use ClassLoader#getResourceFromClasspath() or use one of the other constructors.

That depends on how you added the Image to the jar file.
In the normal case, the image lies in one of your source folders, and eclipse takes care of exporting it into the Jar file. If that is the case, you can load the via the ClassLoader. there are several methods for that. I mostly use this.getClass().getResourceAsStream("logo.png"). If you only use the standard Classloader (which would be the normal case) this will work.

Don't get your image as a file as you're currently doing so. Instead get it as a resource. If you search this site, you'll find similar questions about occurring 2-4 times per week.
i.e.,
String imageResource = //.... string to image resource path
Image myImage = ImageIO.read(getClass().getResourceAsStream(imageResource));
Icon logo = new ImageIcon(myImage);
Note that the imageResource String is the String that represents the resource path to your image. This will depend on where your image is held in the jar file and where it is relative to the class files, information that we don't know at the moment.

Images not exporting to Jar file

I'm trying to export a Java project to a Jar file but the images are not exporting with it.
This is the code to the image im using
static Icon logo = new ImageIcon("src/images/logo.png");
// LOGO
JLabel imageLogo = new JLabel(logoOne);
imageLogo.setPreferredSize(new Dimension(200, 50));
Ive read you need to factor it into the build path but even after i do that it still doesn't export. Do i need to change my code as well? Or am i factoring it into build path wrong?

Do i need to change my code as well?
Yep. That code is presuming the String to represent a path to a File.
By the time of deployment, it will likely become an embedded-resource.
That being the case, the resource must be accessed by URL instead of File. See the info page for the tag, for a way to form an URL.
Images not exporting to Jar file..
To check for sure, do something like:
jar -tvf the.jar

Image not loading in jar file

I am trying to fix this problem. Trying different solutions but nothing works. I am using NetBeans IDE. I created a project with this structure and files:
E:\java\project\ecadpb\src\ecadpb
The image files are in
E:\java\project\ecadpb\src\
I have specified working folder for my project in Netbeans as E:\java\project\ecadpb
I have created my image icons like this
new ImageIcon("device21.png");
In my source file, it works perfectly while running the project in Netbeans but images are not showing up when I build and run my JAR file separately. But the image files are inside the JAR.
I have also tried the answers for the same question asked previously.
URL imageUrl=getClass().getResource("device21.png");
new ImageIcon(imageUrl);
But it doesn't work in my case. I am building a JAR file for the first time. Can anyone help me with this!!

A simple way of doing this will be to add the image in your classpath or a directory in your classpath say img as shown below:
E:\java\project\ecadpb\src\main\java\img\device21.png
And then load your image from this location like this:
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
URL resource = classLoader.getResource("img/device21.png");
ImageIcon icon = new ImageIcon(resource);

Create a source folder called Images (ie if you're using eclipse, right-click your project -> new ->sourceFolder). Call it whatever you want, i called my Images. Put some images in it.
Now i had JLabels where i gave them ImageIcons. Look at the following code.
ImageIcon BPawn;
ImageIcon WPawn;
JLabel Label = new JLabel[8][8] //2D array of labels that gives each spot a position.
public void setPieces(){
//set up pawns in their respective positions.
BPawn = new ImageIcon("Images/BPawn.png", "BPawn");
WPawn = new ImageIcon("Images/WPawn.png", "WPawn");
for(int i=0;i<Label[0].length;i++){
Label[1][i].setIcon(BPawn);
Label[6][i].setIcon(WPawn);
}//end for
}//end setPieces.
There is a lot more in setPieces() method, but this glimpse is how you would reference the images in your source folder when you create an executable jar and want the images to show up.

I think answer could be one these suggestions here

I have used a similar approach,
a) Specify the package path to the image file name.
b) Make sure that the image file is not ommited by your build scripts and that it is present in your jar file.