Exported Jar file won't read file inside jar

Question

In the code sample below, when I test the code in Eclipse it works just fine. However, when I export the jar file and test it via the command line, it throws an error: IIO

Answer 1

try this

public void test() {
    try(InputStream is = getClass().getResourceAsStream("Images/questionMark.png")) {
        ImageIO.read(is);
    } catch (IOException e) {
        e.printStackTrace();
    }
}