Kotlin by Mehmet Ali SICAK was created to introduce Kotlin to programmers. Such errors can be troublesome for both users and developers. Welcome Thanks for purchasing the MEAP for Kotlin in Action! Summary. Let’s slow down a bit and take a closer look at one of the most important parts of Kotlin: its type system. Using reflection to introspect classes at runtime. Developers want to get work done—and the less hassle, the better. Summary Kotlin in Action guides experienced Java developers from the language basics of Kotlin all the way through building applications to run on the JVM and Android devices. Nullable types and syntax for dealing with, Primitive types and their correspondence to the Java types, Kotlin collections and their relationship to Java. The syntax for using annotations is exactly the same as in Java, whereas the syntax for declaring your own annotation classes is a bit different. You’ve moved beyond creating Java-equivalent code in Kotlin and are ready to enjoy some of Kotlin’s productivity features that can make your code more compact and readable. Published on the 17 July 2017, Kotlin covers a broad spectrum of topics from Kotlin and Innovations, Kotlin and Java, Kotlin and Android, what can be done with Kotlin, and working with null data in Kotlin. Let’s look at the details. In order to call a function, you need to know the class in which it was defined, as well as its name and parameter types. Kotlin in Action guides experienced Java developers from the language basics of Kotlin all the way through building applications to run on the JVM and Android devices.. About the Technology. By now, you’ve seen a large part of Kotlin’s syntax in action. As a user of a program, you’ve probably seen an error message similar to “An error has occurred: java.lang.NullPointerException,” with no additional details. About the book. This book is the first and currently only Kotlin book in Turkish. Up to this point, you’ve seen many features for working with classes and functions, but they all require you to specify the exact names of classes and functions you’re using as part of the program source code. Compared to Java, Kotlin’s type system introduces several new features that are essential for improving the reliability of your code, such as support for nullable types and read-only collections. Kotlin in Action teaches you to use the Kotlin language for production-quality applications. Annotations and reflection give you the power to go beyond that and to write code that deals with arbitrary classes that aren’t known in advance. Developers want to get work done – and the less hassle, the better. Coding with Kotlin means less hassle. We're looking forward to introducingyoutoKotlin,whichisanewprogramminglanguagethatisapragmatic,safe, A real example of a Kotlin project ; Up to this point, you’ve seen many features for working with classes and functions, but they all require you to specify the exact names of classes and functions you’re using as part of the program source code. You can use annotations to assign library-specific semantics to those classes; and reflection allows you to analyze the structure of the classes at runtime. Let’s slow down a bit and take a closer look at one of the most important parts of Kotlin: its type system. Another version is a message like “Unfortunately, the application X has stopped,” which often also conceals a NullPointerException as a cause. Book description. Nullability is a feature of the Kotlin type system that helps you avoid NullPointer-Exception errors. But writing your own annotations, and especially writing the code that handles them, is less trivial. Written for experienced Java developers, this example-rich book goes further than most language books, covering interesting topics like building DSLs with natural language syntax. Kotlin in Action guides experienced Java developers from the language basics of Kotlin all the way through building applications to run on the JVM and Android devices. Applying annotations is straightforward. The general structure of the reflection APIs is also similar to Java, but the details differ. It also removes some of the features of the Java type system that have turned out to be unnecessary or problematic, such as first-class support for arrays. About the Technology Developers want to get work done - and the less hassle, the better. Book Description Kotlin in Action guides experienced Java developers from the language basics of Kotlin all the way through building applications to run on the JVM and Android devices. Foreword by Andrey Breslav, Lead Designer of Kotlin. Foreword by Andrey Breslav, Lead Designer of Kotlin. Coding with Kotlin means less hassle. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

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