Difference between revisions of "Kotlin"
From zen2
| Line 8: | Line 8: | ||
open class Vehicle() { | open class Vehicle() { | ||
open fun drive() {} | open fun drive() {} | ||
| + | } | ||
| + | |||
| + | class Car() : Vehicle() { | ||
| + | override fun drive() { | ||
| + | } | ||
} | } | ||
</pre> | </pre> | ||
Revision as of 01:03, 18 November 2017
Class
By default Kotlin classes are final, meaning no classes can inherit from them. In order to make them not final declare them open
open class Vehicle() {}
To override class functions they must also be declared open
open class Vehicle() {
open fun drive() {}
}
class Car() : Vehicle() {
override fun drive() {
}
}