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Java jar path problem

I have a folder named Etc that has an image that I want to use in another file in the same folder, Example.java. So I have Etc \ image.png and Etc \ Example.java. I tried to use "Etc / image.png" as the image path, but it didn't work. How should I do it?

Also, suppose the files were in different packages, how would I go about this?

My main .java classes are in the Main package, for the record.

EDIT:

I used this:

ClassLoader.getSystemClassLoader () getResource ("Etc \ image.png") ;.

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3 answers


You can use Class.getResource()

that uses the classloader to get the url of the resource. For example:

import java.net.URL;
import javax.swing.ImageIcon;

public class Example {

    public ImageIcon getImage() {
        URL url = Example.class.getResource( "image.png" );
        if( url != null ) {
            return new ImageIcon( url );
        }
        return null; // TODO: Better error handling
    }

}


The important part Example.class.getResource( "image.png" )

is that the path to the image is relative to the class name; in this case, it is located in the same directory as the class file. You can also use this line in any other class, leaving the link Example.class

intact.

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Primarily.

Is Etc a package? In other words, at the top of your example file, you have

Etc package;

???

Usually, package names are lowercase, which is why I ask.

Second, while you can use relative paths to access resources, I would recommend always using absolute paths.



So

URL url = Example.class.getResource ("/Etc/image.png");

if Etc is a packet, otherwise

URL url = Example.class.getResource ("/image.png");

if it isn't.

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To do this, you need to have the directory where Etc is in the classpath. If it is inside the jar, I don’t remember if. works like classpath, if not, add Etc to classpath and link to image without classpath, or put Etc in subdirectory. and place this subdirectory in the classpath.

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