you would inherit the class in a separate class and add new functionality. In Kotlin this can be achieved using extension functions. It’s added like a function to the class but is defined outside
In version 7.2 we’ve introduced a number of changes that might look like a major update, but thanks to the flexibility of version 7 it is just a natural platform evolvement. Polyglot CUBA Kotlin is now fully supported as a first-class language for CUBA-based applications. Now you can cre...
Support for Kotlin parameter default and optional values in HTTP handler methods; see21139and29820. Messaging Applications STOMP messaging supports a newpreserveReceiveOrderconfig option for ordered processing of messages received from a given client. That's in addition to the existingpreservePublishOrder...
A dating service calledDateMyPetoffers pet lovers an opportunity to find a match who won’t ever object to their faithful fluffy (or not so fluffy) companion. It’s a valid business idea — a breakup over a pet is not an uncommon occurrence. In fact, studies show that86% of peopleplac...
The Kotlin compiler can automatically cast an object to a type in specific cases, saving you the trouble of having to explicitly cast it yourself. This is called [smart casting](typecasts.md#smart-casts). The Kotlin K2 compiler now performs smart casts in even more scenarios than before. In...
Our vision is for Kotlin to be a reliable companion for all your endeavors, a default language choice for your tasks. To accomplish this, we’re going to make it shine on all platforms. Multiple case studies from companies well-known in the industry show that we are making good progress ...
Get an overview of JDBC's architecture, then learn how to connect to a database and handle SQL queries and responses with PreparedStatements, transactions, connection pooling, and more. Credit: Alpesh Ambalal Patel / Getty Images JDBC (Java Database Connectivity) is the Java API that ...
In this tutorial, we will find the difference between const and val in Kotlin. Developers generally get confused between these two terms. So, let's find out the difference.
class Foo { companion object { fun a() : Int = 1 } } 然后,您可以从 Kotlin 代码内部使用它,如下所示: Foo.a(); 但是从 Java 代码中,您需要将其称为 Foo.Companion.a(); (这也来自 Kotlin。) 如果您不想指定Companion位,则可以添加@JvmStatic批注或命名您的伴侣类。 从文档: 伴侣对象 类内的...
Retrofit is great when we want to use a networking library for our Android native apps. But how about we want to use something similar in other platforms as well? When I say other platforms, I bet Kotlin Multiplatform comes to your mind as one of the options as well. Kotlin Multiplatform...