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Iterator

interface Iterator<out T>

An iterator over a collection or another entity that can be represented as a sequence of elements. Allows to sequentially access the elements.

abstract operator fun hasNext(): Boolean

Returns true if the iteration has more elements.

abstract operator fun next(): T

Returns the next element in the iteration.

open operator fun equals(other: Any?): Boolean

Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:

open fun hashCode(): Int

Returns a hash code value for the object. The general contract of hashCode is:

open fun toString(): String

Returns a string representation of the object.

asSequence	fun <T> Iterator<T>.asSequence(): Sequence<T> Creates a sequence that returns all elements from this iterator. The sequence is constrained to be iterated only once.
forEach	fun <T> Iterator<T>.forEach(operation: (T) -> Unit) Performs the given operation on each element of this Iterator.
iterator	operator fun <T> Iterator<T>.iterator(): Iterator<T> Returns the given iterator itself. This allows to use an instance of iterator in a `for` loop.
withIndex	fun <T> Iterator<T>.withIndex(): Iterator<IndexedValue<T>> Returns an Iterator wrapping each value produced by this Iterator with the IndexedValue, containing value and it's index.

AbstractIterator	abstract class AbstractIterator<T> : Iterator<T> A base class to simplify implementing iterators so that implementations only have to implement computeNext to implement the iterator, calling done when the iteration is complete.
BooleanIterator	abstract class BooleanIterator : Iterator<Boolean> An iterator over a sequence of values of type `Boolean`.
ByteIterator	abstract class ByteIterator : Iterator<Byte> An iterator over a sequence of values of type `Byte`.
CharIterator	abstract class CharIterator : Iterator<Char> An iterator over a sequence of values of type `Char`.
DoubleIterator	abstract class DoubleIterator : Iterator<Double> An iterator over a sequence of values of type `Double`.
FloatIterator	abstract class FloatIterator : Iterator<Float> An iterator over a sequence of values of type `Float`.
IntIterator	abstract class IntIterator : Iterator<Int> An iterator over a sequence of values of type `Int`.
ListIterator	interface ListIterator<out T> : Iterator<T> An iterator over a collection that supports indexed access.
LongIterator	abstract class LongIterator : Iterator<Long> An iterator over a sequence of values of type `Long`.
MutableIterator	interface MutableIterator<out T> : Iterator<T> An iterator over a mutable collection. Provides the ability to remove elements while iterating.
ShortIterator	abstract class ShortIterator : Iterator<Short> An iterator over a sequence of values of type `Short`.

© 2010–2017 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-iterator/