程序包 java.util

接口 PrimitiveIterator<T,T_CONS>

类型参数:

T - the type of elements returned by this PrimitiveIterator. The type must be a wrapper type for a primitive type, such as Integer for the primitive int type.

T_CONS - the type of primitive consumer. The type must be a primitive specialization of Consumer for T, such as IntConsumer for Integer.

所有超级接口:

Iterator<T>

所有已知子接口:

PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

public interface PrimitiveIterator<T,T_CONS>
extends Iterator<T>

A base type for primitive specializations of Iterator. Specialized subtypes are provided for OfInt, OfLong, and OfDouble values.

The specialized subtype default implementations of Iterator#next and Iterator#forEachRemaining(java.util.function.Consumer) box primitive values to instances of their corresponding wrapper class. Such boxing may offset any advantages gained when using the primitive specializations. To avoid boxing, the corresponding primitive-based methods should be used. For example, PrimitiveIterator.OfInt#nextInt() and PrimitiveIterator.OfInt#forEachRemaining(java.util.function.IntConsumer) should be used in preference to PrimitiveIterator.OfInt#next() and PrimitiveIterator.OfInt#forEachRemaining(java.util.function.Consumer).

Iteration of primitive values using boxing-based methods Iterator#next and Iterator#forEachRemaining(java.util.function.Consumer), does not affect the order in which the values, transformed to boxed values, are encountered.

从以下版本开始:

1.8

嵌套类概要

嵌套类

限定符和类型	接口	说明
static interface	PrimitiveIterator.OfDouble	An Iterator specialized for double values.
static interface	PrimitiveIterator.OfInt	An Iterator specialized for int values.
static interface	PrimitiveIterator.OfLong	An Iterator specialized for long values.

方法概要

限定符和类型	方法	说明
void	forEachRemaining(T_CONS action)	Performs the given action for each remaining element, in the order elements occur when iterating, until all elements have been processed or the action throws an exception.

从接口继承的方法 java.util.Iterator

forEachRemaining, hasNext, next, remove

方法详细资料

forEachRemaining

void forEachRemaining(T_CONS action)

Performs the given action for each remaining element, in the order elements occur when iterating, until all elements have been processed or the action throws an exception. Errors or runtime exceptions thrown by the action are relayed to the caller.

参数:

action - The action to be performed for each element

抛出:

NullPointerException - if the specified action is null