What is the best way to get the count/length/size of an iterator?

by

Using Guava library:

int size = Iterators.size(iterator);

Internally it just iterates over all elements so its just for convenience.

More Related Contents:

  1. How can I override next() for jagged array java?
  2. Calling remove in foreach loop in Java [duplicate]
  3. How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterating it? [duplicate]
  4. ConcurrentModificationException despite using synchronized
  5. Adding elements to a collection during iteration
  6. How to convert an Iterator to a Stream?
  7. Why is Java’s Iterator not an Iterable?
  8. Performance of traditional for loop vs Iterator/foreach in Java
  9. What is the difference between iterator and iterable and how to use them?
  10. Why isn’t this code causing a ConcurrentModificationException? [duplicate]
  11. Can we write our own iterator in Java?
  12. Iterator vs for
  13. Difference between Iterator and Listiterator?
  14. What are fail-safe & fail-fast Iterators in Java
  15. How to get a reversed list view on a list in Java?
  16. How Iterator’s remove method actually remove an object
  17. Iterate twice on values (MapReduce)
  18. Convert Iterator to List
  19. How does the enhanced for statement work for arrays, and how to get an iterator for an array?
  20. Difference between Java Enumeration and Iterator
  21. How can I implement the Iterable interface?
  22. Is it possible to merge iterators in Java?
  23. Generator functions equivalent in Java
  24. Java: why can’t iterate over an iterator?
  25. For-each vs Iterator. Which will be the better option
  26. Iterating over and deleting from Hashtable in Java
  27. It does not throw exception ConcurrentModificationException [duplicate]
  28. Iterate with for loop or while loop?
  29. Provide an iterator over the contents of two lists simultaneously?
  30. Java polymorphism error? [closed]

Leave a Comment