I am using this sample for printing images (with the correct 8 bits shift): Print bitmap full page width in thermal dot printer using ESC/POS in java When I s
I use debizium to stream postgresql data to Kafka, and use Java to subscribe Kafka topic. I receive Kafka message and get a JSON string, but
I am using a lambda function and writing it in Java. I was looking up logging for Lambda functions when I read the docs and they support log4j - http://docs.aws
My models is inefficient and taking too long to find valid solutions so I think knowing how many times the constraints are being broken would be useful for test
I'm using apache poi for iteration table in docx file. All works fine but if table in text box, my code don't see table - table.size() = 0 XWPFDocument doc =
I have an Android application where the user can modify multiple String items using EditText at the same time, so I need to figure out what have changed in orde
I'm just a beginner in Java. When should I use double colon? import java.util.stream.*; class GFG { public static void main(String[] arg
Background - New to Android, but pretty nifty with moving layouts around, understanding Java, Kotlin and XML. However this task seems to be way above my head.
Let's say we have a HashMap named hsm, and I want the value of hsm.get(invalidKey). Because the invalidKey has no mapping it will return for me a null value, bu
I have data in a topic that needs to be counted at multiple levels and all code and articles only mention the word count example. An example of the data would
I'm currently trying to build an email registration process with an email confirmation. I use the JavaMailSender for this. Unfortunately, I am currently getting
I'm currently using rest assured and Json-unit to assert a local json file against the requested rest assured response. I currently have a before class method
This is my code, it is not producing any output. As I have started my loop from 100 so according to the logic used I should get answer as 153. But nothing is co
new to programming here and i keep getting the error message, incompatible types, int cannot be converted to int [], the question is to add R1 & R2 together
(repository with an example of what I'm trying to do is here) It's my first time using ByteBuddy and I've found myself struggling to merge the contents of two @
I've inherited an application that only compiles and runs in Java 1.8. Because I don't want to make Java 1.8 the primary jvm on my machine, I felt that the best
So the thing is I was checking Optional Java class and I noticed this in the public static<T> Optional<T> empty() doc: @param <T> The type of
I have a web project which creates 2 separate deployables(.war files). I deployed both in single tomcat, and when I change the JVM timezone in a beanFactoryPost
Split package issue for Netty with JDK 17. It is unmodularlized jar which I am trying to include in my modularized project. I added a module-info.java then incl
I have a couple of microservices developed using spring boot and each has its own Postgres database. These microservices exchange data with a CDC mechanism prov