The differences between modern Java and Kotlin. This article is not about choosing sides but about how both languages complement each other.

Lee S

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This post explores 17 differences between Kotlin and modern Java, including functional programming, null safety, observability, syntax, checked exceptions, coroutines support, data classes, type inference, extension functions, smart casts, constructors, ternary operator, primitive types, string templates, operator overloading, wildcard types vs. declaration-site variance, and cross-platform and multiplatform development.

Kotlin & Modern Java: The 17 Differences

1. Kotlin supports a more functional programming style

3. Observability tools /observable functions/ observability functionality

5. Kotlin does not have checked exceptions

16. Wildcard-types vs. declaration-site variance and type projections