# When to Choose Kotlin Over Java for Software Projects

DevFeed: [When to Choose Kotlin Over Java for Software Projects](<https://devfeed.tech/articles/stop-using-java-when-kotlin-exists-62443.md>)

Original publisher: [Read original article](<https://spin.atomicobject.com/stop-using-java-kotlin/>)

Author: Matt Soto

Published: 2026-09-30T12:00:22Z

Content type: comparison

Language: en

Sources: [Atomic Object](<https://devfeed.tech/sources/atomic-object.md>)

Topics: [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [Java](<https://devfeed.tech/topics/java.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-development](<https://devfeed.tech/tags/android-development.md>), [binaries](<https://devfeed.tech/tags/binaries.md>), [bytecode](<https://devfeed.tech/tags/bytecode.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [coroutines](<https://devfeed.tech/tags/coroutines.md>), [cost](<https://devfeed.tech/tags/cost.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [developers](<https://devfeed.tech/tags/developers.md>), [development](<https://devfeed.tech/tags/development.md>), [exception-handling](<https://devfeed.tech/tags/exception-handling.md>), [fantastic](<https://devfeed.tech/tags/fantastic.md>), [hosting](<https://devfeed.tech/tags/hosting.md>), [immutability](<https://devfeed.tech/tags/immutability.md>), [java](<https://devfeed.tech/tags/java.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [learn](<https://devfeed.tech/tags/learn.md>), [performance](<https://devfeed.tech/tags/performance.md>), [platforms-languages](<https://devfeed.tech/tags/platforms-languages.md>), [portable](<https://devfeed.tech/tags/portable.md>), [time](<https://devfeed.tech/tags/time.md>)

## AI overview

The article compares Java and Kotlin, explaining Kotlin's Java interoperability and its use in existing Java projects. It introduces Kotlin features such as coroutines, nullability, scoped functions, and improved generics, and begins discussing conditions that may make switching less beneficial.

## Source excerpt

Despite its many flaws, Java is a fantastic language for a variety of reasons. It's portable, runs on every device and hosting provider, and is easy to learn. It even has pretty good performance in many aspects due to its just-in-time compiler (which has been recently updated!). On top of that, it's also incredibly popular. [...] The post Stop Using Java When Kotlin Exists appeared first on Atomic Spin.