I want to save a student and a student has a TargetAudience object as an attribute. These target audiences are allready hardcoded in my database. (targetaudience = campus + major). Now when i post like this: it doesnt work because everythime it creates a new object for the campus and because i use name as a p…
Tag: java
Karate: runners class with JUnit5
sorry for the naive question: What are the references to “sample” and “tags” in the example documentation that explains the configuration of tests with Junit5? Are these features? Thanks Answer Yes, it tries to be more concise instead of sample.feature etc. Refer the docs: https://gith…
How to count HTML Tags if I have dynamic changes in these tags?
I want to count some tags in this page Link I am trying to count the tags of opening positions so, I tried this code using java to count but I always find my count is = 0; And I write this function to count:- Everytime the count is 0, I searched for an Iframe but I didn’t find any.
How to set color effect on document(image) using OpenCV(java)
currently, I’m working on a document scanner project who captures and filter document with different effects and color but I’m a beginner to work with OpenCV. but, now I understand how medianBlurFilter , gaussianBlurFilter , cannyFilter and bilateralFilter works. just I am starting to do this type…
Spring Integration with Kafka throwing ClassCastException
I have a case where i want to publish message from Kafka Producer, My message is just a POJO object e.g CreateRequest. So for consuming I have added below code Also,I have added setMessageConverter and setPayloadType to get response of type CreateResponse but still i am getting response of type KafkaMessageSo…
How do I count word occurrences in a csv file?
I have a CSV file that I need to read and display the number of occurrences of each word, the application should only count words that have more than one letter and not alphanumerical also turned to lowercase. This is what I have right now and I’m stuck at this and have no ideas where to go from this. I
How to use starts-with() in xpath to switch to frame using Selenium
Can anyone help me understand how i use the following java code in python and selenium: I tried using string formatting and couldnt find a way of using starts-with() in python. Answer starts-with() is a xpath function used for finding the web element whose attribute value gets changed on refresh or by other d…
How can I get all subarrays of a given array faster than O(N^2)?
I’m trying to print all subarrays of given array like below. I can print it with nested loops. But I want to know how to implement it with O(N) or O(2^N). Answer There are O(n^2) subarrays of an array in the first place. Printing them — no matter how you generate them — will always take at l…
Why does it throw an exception when reading int array from file in java
I am trying to read an integer array from a file. the file format is as follows: 893 410 243 264 357 33 793 … … I will later split that array into 4 and calculate it’s sum using MPI, but i can’t seem to be able to read the file. I get this exception: So from what i understand,
proto3: Why setting java_multiple_files = true not creating separate java classes for each proto message?
I have a proto definition with nested classes When I generate the java classes with option java_multiple_files = false; it creates a single java class, ClusterConfigOuterClass.java with all the Java classes/enums/etc generated for the top-level messages, services, and enumerations nested inside it. This is ex…