I'm using Java with Hibernate. I want to: Save my data to the database Run sql to verify the result If the result is valid, then commit, otherwise rollback So,
I am trying to add an test value to Firebase Database by following code: FirebaseDatabase database = FirebaseDatabase.getInstance(); DatabaseReference ref = F
I want to post data to the url and getting Null pointer exception My JSON URL contains { "Details": [ { "Status":"NO UPDATES" }
Is there a possibility to instruct Swagger not to send the Hypertext Transfer Protocol (http) in front of a POST or GET request ? As you can see on the screens
I try to develop an app using Flutter. Everything is OK when I initiate my app, it runs perfect for 2 days. But when I had an error writing my widgets, I restar
I'm trying to write integration test for Spring Boot application. I have Product and GalleryImage domain model. They are in one-to-many relationship. public cl
I want use @Nullable annotation to eliminate NullPointerExceptions. I found some tutorials on the net, I noticed that this annotation comes from the package j
To keep it simple, all I'm trying to do is to send a message from my Android Emulator to a Java console server on Eclipse that contains a simple string, then I
So I installed the beta of JDK 8 a while ago to look at some of the examples. I thought for sure by now, it's easy to change between versions. Doing some Play
I am trying to map some JSON objects to Java objects with Jackson. Some of the fields in the JSON object are mandatory(which I can mark with @NotNull) and some
I am using selenium web driver java built, the editor is eclipse. For testing one of our websites I am using Data-driven testing by fetching data from MySQL dat
I am currently running a Java Spark Application in tomcat and receiving the following exception: Caused by: java.io.IOException: Mkdirs failed to create file:/
Approaching to the final stage of the authentification, but something is going wrong in handleSignInResult method. It returns Exception code 10 (Developer error
I have integrated an update system into my Java program, and the one thing that is missing is a way to download a jar file from a URL using Java. How can one go
Currently the time displayed as 13:35 PM However I want to display as 12 hour format with AM/PM, i.e 1:35 PM instead of 13:35 PM The current code is as below
My Android device+app is continuously sending data every few ms, and I'd like to receive it on my web browser application that I'm building with JavaScript/HTML
in HashMap when I pass List of Objects as Key I get different results. List<NewClass> list1 = new ArrayList<>(); List<NewClass> list2 = new Ar
Currently I have an aar file and need to edit the structure and functions in it. I need to convert it to a project in order for you to edit it. Is there any way
I have to json array in my servlet. I want to fetch json array value and print in to jsp page using ajax. below is code JSONArray htags = new JSONArray();
I've got a simple project in Gradle 4.6 and would like to make an executable JAR of it. I've tried shadow, gradle-fatjar-plugin, gradle-one-jar, spring-boot-gra