readFileFromResource.java

public static void main(String[] args) {

        ClassLoader loader = ClassLoader.getSystemClassLoader();

        File f = new File(loader.getResource("file_name.txt").getFile());

        try (Scanner scanner = new Scanner(f)){

            scanner.useDelimiter(";");

            String jsonString = scanner.next();

            print(jsonString);

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }