Package com.github.javaparser.printer.lexicalpreservation

Interface LookaheadIterator<E>

All Known Implementing Classes:

PeekingIterator

public interface LookaheadIterator<E>

Method Summary

Modifier and Type	Method	Description
E	element()	Returns the next element in iteration without advancing the underlying iterator.
E	peek()	Returns the next element in iteration without advancing the underlying iterator.

Method Detail

peek

E peek()

Returns the next element in iteration without advancing the underlying iterator. If the iterator is already exhausted, null will be returned.

Note: this method does not throw a NoSuchElementException if the iterator is already exhausted. If you want such a behavior, use element() instead.

The rationale behind this is to follow the Queue interface which uses the same terminology.

Returns:

the next element from the iterator

element

E element()

Returns the next element in iteration without advancing the underlying iterator. If the iterator is already exhausted, null will be returned.

Returns:

the next element from the iterator

Throws:

NoSuchElementException - if the iterator is already exhausted according to #hasNext()