Java

Java vs Kotlin: which is better for modern backend development?

The question is about Java .

Answer:

Kotlin has a practical edge for new backend projects because null safety is enforced by the type system at compile time, while Java still relies on Optional and developer discipline to avoid NullPointerException. Since JDK 21 shipped virtual threads, Java has closed much of the concurrency gap that used to push teams toward Kotlin coroutines. Both languages compile to JVM bytecode and can call each other's libraries without a wrapper.

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