in the below code, i am doing descriptor matching using BRUTFORCE algorithm. i read som tutorial but they were writtin in C++, and i found that, always after the matching process, the resultant MatOfDMatch object from should be converted to DMatch objectas follows and the dMtchList should be sorted Ascendingl…
Tag: java
Mockito Error Is Not Applicable for the Arguments (void)
Mockito throws error “The method when(T) in the type Stubber is not applicable for the arguments (void)” for a class I’m mocking, can’t figure out why. the code in question is: I’m aware similar questions have been asked but if somebody could explain a solution for this or point …
Reading line breaks in CSV which are quoted in the file in FlatfileItemReader of spring batch
I am trying to parse a CSV file with FlatFileItemReader. This CSV contains some quoted newline characters as shown below. But this parsing is failing with required fields are 2 but actual is 1. What I am missing in my FlatFileReader configuration? Answer out of the box the FlatFileItemReader uses a SimpleReco…
Automatically create builder for class in Eclipse
Is there a way to use an automatic builder to create builder (Joshua Bloch’s Builder Pattern) for classes in Eclipse? For example an option in the menu, a plugin or something else. I could not find anything under “Refactor”. Answer Maybe I am late to the party. Eclipse on its own does not pr…
Spring-boot thymeleaf load HTML file from classpath
I’ve a multi module project structure like : and on my controller: I’m getting the error message as below: Is there configuration needed to configure something specially for spring for searching templates on class path? Answer Adding following properties solves my problem:
Closest divisible integer
Example. How can I find the integer c? The result of that example is c = 250. Answer There are two cases to consider: The closest integer that is less than or equal to a: The closest integer that is greater than a: Then we need to check which is closer to a and return that: So we could create
IntelliJ @IfProfileValue default value
In most projects that use Spring extensively there are a few tests that use @IfProfileValue to mark it as integration test, performance test or similar. When you run these with maven you do something …
How to create an FXML file for an already created new component in java than add it to scene builder?
I’m new to javaFX. I created a customized Search box (extends TextField) in java, check image: I tested it with a test class and it’s working. I want to know now if it’s possible to create its FXML file than add this component to scene builder ? how to do it ? Thanks in advance. Answer How t…
creating spring rest services without using spring boot
I’ve followed the Getting Started tutorial on spring.io for building REEST services https://spring.io/guides/gs/rest-service/. The problem is that this tutorial only explain how to produce a standalone running jar with tomcat embedded using spring boot. Is there a way to create a project from scratch to…
Check if JSON is valid in JAVA using Jackson
I have a JSON string which I am storing it in DB as a string. In front-end, I am rendering this JSON as object. I am using: String : Is there any way I can check If JSON is valid or not in JAVA? One thing to be noted here is that, I don’t have a schema defined for JSON