How can the principle of coding so that written code works in all environments without changes be expressed?

This principle is called "Write Once, Run Anywhere" (WORA) — "Написал один раз, запускай везде". It means that code should be independent of a specific platform or runtime environment to work without changes on different devices or operating systems. In the context of Android, this is achieved by using Java or Kotlin and the Android SDK, which ensure compatibility with different OS versions and devices.