java-tutorials/core-kotlin

Relevant articles:

• Introduction to the Kotlin Language
• A guide to the “when{}” block in Kotlin
• Comprehensive Guide to Null Safety in Kotlin
• Kotlin Java Interoperability
• Difference Between “==” and “===” in Kotlin
• Generics in Kotlin
• Introduction to Kotlin Coroutines
• Destructuring Declarations in Kotlin
• Kotlin with Mockito
• Lazy Initialization in Kotlin
• Overview of Kotlin Collections API
• Converting a List to Map in Kotlin
• Data Classes in Kotlin
• Delegated Properties in Kotlin
• Sealed Classes in Kotlin
• JUnit 5 for Kotlin Developers
• Extension Methods in Kotlin
• Infix Functions in Kotlin
• Try-with-resources in Kotlin
• HTTP Requests with Kotlin and khttp
• Kotlin Dependency Injection with Kodein
• Regular Expressions in Kotlin
• Objects in Kotlin
• Reading from a File in Kotlin
• Guide to Kotlin @JvmField
• Filtering Kotlin Collections
• Writing to a File in Kotlin
• Lambda Expressions in Kotlin
• Writing Specifications with Kotlin and Spek
• Processing JSON with Kotlin and Klaxson
• Kotlin String Templates
• Java EE 8 Security API