I need to extend the Graphics class in order to @Override some methods including drawRect(int,int,int,int) and drawRoundRect(int,int,int,int,int,int). However, I have no idea how to do that. This is what I’ve got so far: I get an error on class declaration line saying: myGraphics is not abstract and doe…
What’s the differences between Go and Java about interface? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 6 years ago. Improve this question Recently I’ve been asked a question which is, what’s the diffe…
Authentication issue with repo accessed from Spring Cloud Config Server hosted on GitHub
I’m hosting a configuration in a repo on GitHub. If I keep the repo public all’s good, but if I make it private I face: the property I use to target the repo is What should I do to configure this properly with the private repo, thanks Answer you need to add the and things should workout for you
What exactly is Field Injection and how to avoid it?
I read in some posts about Spring MVC and Portlets that field injection is not recommended. As I understand it, field injection is when you inject a Bean with @Autowired like this: During my research I also read about constructor injection: What are the advantages and the disadvantages of both of these types …
trouble initialize List Using Arrays.asList
When I initialize List, I am able to do this: But when I want to simplify it using Arrays.asList: It cannot compile with error: Why it cannot do the type inference right and how to fix this? Answer Remember that … is just syntactic sugar for an array parameter. You can call a method with a variadic para…
Is there a way to convert an element link to XPath
I have written a Jsoup class file to scrape a page and grab the hrefs for every element on the page. What I would like to do from there is to extract the Xpath for each of the elements from their hrefs. Is there a way to do this in JSoup? If not is what is the best way to
RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse
I’m trying to test Keycloak REST API. Instaled the version 2.1.0.Final. I can access the admin through browser with SSL without problems. I’m using the code above: And got the error: I added the dependencies above, but do not solve my problem: Any clues? Answer I solved !! You must add org.jboss.r…
Returning result of count native query using EntityManager in Java?
I have the following SQL Query : I am trying to write this in java : However I get this exception: How can I solve this? Answer You can also use Number and call intValue():
How to use Postgres JSONB datatype with JPA?
Im not finding a way to map the JSON and JSONB datatypes from PostgreSQL using JPA (EclipseLink). Is some one using this datatypes with JPA and can give me some working examples? Answer All the answers helped me to reach the final solution that is ready for JPA and not EclipseLink or Hibernate specifically.
Retrofit2, Android, @Get Parsing for the Array of Array
I am parsing the title correctly and displaying it in a listview. I cant seem to access the seen below. Here are the two objects, sample response and my call. response pojo: first object second object response: I am getting the title just by passing ‘result’ into the adapter and using result[i].ge…