when in Kotlin is an expression — it returns a value and can be exhaustive with sealed types. Java's switch gained expression form and pattern preview features over recent LTS releases; older Java needs verbose if/else chains or break-labeled switches.
Kotlin: when as expression
Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
▼
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.