In MongoDB, using Java how can I query to find documents which exceeds the 15mb size in database or collection Answer Try this one:
Java: Find numbers or letters between bounds given in string
I have strings like 1-3, 11-16, a-d, C-G. Is there a way to generate an array of all the values in between(inclusive). So for example the string a-d would return an array [‘a’,’b’,’c’,’d’] and 11-16 would return[11,12,13,14,15,16]? Answer This should work: Here,…
How can a badge like on GitHub libraries be made?
How can I make a badge like how we ofter see it on GitHub libraries. Like this: . I can use a web view but it is not efficient as it will take time to load and it will also cache it. Answer For this, I have made a library Badge Generator. It is easy to implement. The steps are
Adding elements from one 2d array to another 2d array Java
I’m trying to add specific elements from one 2d array to another , the process of adding is that I’m choosing the smallest element in the first row of the array and add that element to the other 2d array at the same position so for example : 2 22 3 5 1 54 7 3 10 20 22 21
Is it better to write integration or unit test for Kafka Spring?
I’ve been searching a while about the best way to test Kafka in Spring. As far as I know, @EmbeddedKafka is more for an unit test but isn’t it better to test Kafka in a real working environment by writing integration test for it? And what really am I testing by writing unit test for Kafka? A real …
How do I exclude certain Vaadin views from authentication?
I want to make a couple of Vaadin (v22) views accessible without a login, i.e. make them publicly available. I looked at this tutorial, which is probably outdated: https://vaadin.com/learn/tutorials/securing-your-app-with-spring-security There it says, that all views not using the @Secured annotation are publ…
My app is gets back to previous page without updating data to database. (Using Android studio + Firebase)
My app is gets back to previous page without updating data to database. (Using Android studio + Firebase) This is the java code for the activity This is the log at that time, I had already tried to debug but couldn’t get any solution…………………………&…
JavaFX event on Mouse Wheel Finished for ScrollPane
I have a ScrollPane with lots of elements on it, (Same one as this JavaFX setHgrow / binding property expanding infinitely) and initially I was planning on using the setOnScrollFinished(this::scrollFinished); event, however I’ve now discovered through research that this only applies to touch gestures, a…
SpringBoot – i want to show login button for only users that are not logged-in
I am currently looking for a solution on how to not show the login button when a user is fully authenticated. This is for a personal project that I am doing. I want users to not be able to view the login button if they are connected, i already tried to look in the thymeleaf documentation i didn’t find a…
How to mock private method using powermock?
If I have a simple class like: What modification do I need to mock the private method getDefaultLuckyNumber? I have this which doesnt work Answer PowerMock annotations required for mock working: Example of working test: PowerMock version: