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Posts by tarhalda
While other JVM languages, such as Groovy, Kotlin and Scala have Python-like import aliasing, Java does not. It's not possible to 're-name' imports, however, when you call a class from a package, ...
Some development tools provide an error message when a user tries to import two things (classes, packages) with the same name. Some programming languages offer a syntax to import one of those thing...
Disclaimer: I am not a security expert nor a security professional. There is, of course, a relevant XKCD comic for this: The entropy numbers appear to be accurate based on this security.stackex...
I am working with JSF 2.3 and have a selectManyMenu component that is marked as required but that I want to be cleared if the user unselects all items. Currently, the user can unselect all items, b...
Flutter supports packaging a SQLite instance with a Flutter app using the Sqflite plugin. I do not like the speed of SQLite or the fact that it does not enforce column datatypes and want to use som...
I am migrating an application from Log4j1 to Log4j2 using the API bridge jar. All references to the log4j1.jar have already been removed. I set the system property in Websphere as a JVM argument -...
I had been using log4j2.12.4 jars. When I switched to log4j2.20.0 jars, log4j2 correctly searched for and found the log4j configuration file.
What does lifting state up in Flutter mean, and how does it work?
This article has a good explanation of lifting state up in Flutter. Let's say for example that we have a BlueSquare widget that displays the number of times it has been tapped. Each click on the...
