ConcatIterator

package saker.util

public final class ConcatIterator<T> implements Iterator<T>

saker.util.ConcatIterator<T>

java.lang.Object

java.util.Iterator<T>

Iterator that concatenates other iterators.

This class takes an iterator of iterators during its construction, and will iterate over them after each other.

The iterator supports removals only if the iterator that returned the last element supports it.

TThe element type.

Constructors

public	ConcatIterator(Iterator<? extends Iterator<? extends T>> iterators) Creates a new instance.

Methods

public boolean	hasNext() Returns `true` if the iteration has more elements.
public T	next() Returns the next element in the iteration.
public void	remove() Removes from the underlying collection the last element returned by this iterator (optional operation).

Inherited methods
From: Object clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
From: Iterator<T> forEachRemaining

public ConcatIterator(Iterator<? extends Iterator<? extends T>> iterators) throws NullPointerException

Creates a new instance.

iteratorsThe iterator of iterators that should be iterated over.

NullPointerExceptionIf the argument is null.

public boolean hasNext()

Overridden from: Iterator

Returns true if the iteration has more elements. (In other words, returns true if Iterator.next() would return an element rather than throwing an exception.)

true if the iteration has more elements

public T next()

Overridden from: Iterator

Returns the next element in the iteration.

the next element in the iteration

public void remove()

Overridden from: Iterator

Removes from the underlying collection the last element returned by this iterator (optional operation). This method can be called only once per call to Iterator.next(). The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.