Constructor Detail

• PeekIterator

  public PeekIterator​(Iterator<T> underlyingIterator)

Method Detail

• hasNext

  public boolean hasNext()

  Specified by:

  hasNext in interface Iterator<T>

  Returns:

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

• next

  public T next()

  Specified by:

  next in interface Iterator<T>

  Returns:

  the next element in the iteration. Calling this method repeatedly until the hasNext() method returns false will return each element in the underlying collection exactly once.

• peek

  public T peek()

  Returns:

  the next element in the iteration, but without removing it, so the next call to next() or peek() will return the same element as returned by the current call to peek().

• remove

  public void remove()

  Unsupported

  Specified by:

  remove in interface Iterator<T>

• getUnderlyingIterator

  public Iterator<T> getUnderlyingIterator()

  Returns:

  the iterator wrapped by this object.