使用getResource（）无法获取图像

Question

I'm trying to make a jar, but the program needs images. When I ran the jar, the images didn't show up. However, they did in eclipse. I used this code:

label.setIcon(new ImageIcon("res/img/icon.png"));

Then I went looking on the internet for a way to fix it. I found this question here on StackOverflow, but when i tried it in my code, it's throwing a NullPointerException (also in eclipse). This is my code now:

label.setIcon(new ImageIcon(getClass().getResource("/res/img/icon.png")));

The images are in a separate folder in the package, called "res":

Answer 1

1. create a package inside your project, and name it something like "Images".
2. Now, add images you are using into this package.
3. Finally, call to these images, which are inside the package.

make sure you typed image names correctly as well

That is the best way of dealing with images

update

try

label.setIcon(new ImageIcon(getClass().getResource("res/img/icon.png")));

instead of

label.setIcon(new ImageIcon(getClass().getResource("/res/img/icon.png")));

Answer 2

Have a look that your RES folder is actually within the eclipse SRC folder. Sometimes, users add a folder to the eclipse project instead.

Also:

• Try cleaning and rebuilding your project.
• In Eclipse, open the Navigator view. Open the /bin folder of the project. Does it have the /res/img/icon.png ( comment from here )