Kotlin
The primary language for modern Android development, also used server-side. Concise, null-safe, and interoperable with Java.
How-to
Format a Date in Kotlin
Format date and time values using the java.time API and DateTimeFormatter.
How-toMake a GET Request in Kotlin
Perform an HTTP GET on Android using the OkHttp client with a coroutine.
ConceptNull Safety in Kotlin
A type system that distinguishes nullable from non-nullable references to eliminate most null-pointer exceptions.
How-toParse JSON in Kotlin
Decode JSON into data classes using the kotlinx.serialization library.