Object Expressions

Object expressions as equivalents of Java anonymous classes, with a twist.

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THE CURRENT VERSION OF THIS ARTICLE IS PUBLISHED HERE.

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Tags: #KOTLIN FEATURE

This article is part of the Kotlin Primer, an opinionated guide to the Kotlin language, which is indented to help facilitate Kotlin adoption inside Java-centric organizations. It was originally written as an organizational learning resource for Etnetera a.s. and I would like to express my sincere gratitude for their support.

It is recommended to read the Introduction before moving on. Check out the Table of Contents for all articles.

Object expressions are the equivalent of Java anonymous classes:

A super-type is not required (which is equivalent to inheriting from Any), and variables from the enclosing scope can be accessed: