782 B
782 B
Iterable interface
The inteface which requires iterator to be implemented:
fun iterator(): Iterator
Iterator itself is a simple interface that should provide only to method:
interface Iterable {
fun hasNext(): Bool
fun next(): Obj
}
Just remember at this stage typed declarations are not yet supported.
Having Iterable in base classes allows to use it in for loop. Also, each Iterable has some utility functions available:
Abstract methods
fun iterator(): Iterator
Instance methods
toList()
Creates a list by iterating to the end. So, the Iterator should be finite to be used with it.
Included in interfaces:
- Collection, Array, List