What is the difference between Enumeration and Iterator ?
Javasearch.buggybread.com

Search Interview Questions


 More than 3000 questions in repository.
 There are more than 900 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Java - Interview Questions and Answers

 Q1. What is the difference between Enumeration and Iterator ?Core Java2017-05-07 15:22:08

Ans. Enumeration can iterate only legacy collections like Vector , HashTable and Stack whereas Iterator can iterate both legacy and non legacy collections.

Enumeration is less safer than Iterator

Enumeration is fail safe whereas Iterator is fail fast

Iterator allows for removal of element while traversal whereas Enumeration doesn't have remove method.

Enumerations were introduced in Java 1 whereas Iterators were introduced with Java 2

Enumerations have methods like hasMoreElements and nextElement whereas Iterators have methods like hasNext, next and remove

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     enumeration vs iterator  collections      Basic        frequent


Related Questions

  Can we override compareTo method for Enumerations ?
  What is an enumeration?
  Shall we keep the enumeration name in all capital letters as it contains all constants ?
  In Hibernate, While defining Criteria, Have you ever faced any problem while adding restrictions with user defined types or Enums ?



Help us and Others Improve. Please let us know the questions asked in any of your previous interview.

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked: