JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Iterator Examples


Description:

All of the collection classes provides iterator() method to iterate through the collection. The iterator() method returns the Iterator object through which you can access the collection elements in an order. Enumeration also does the same purpose. The difference between Iterator and Enumerations is: Iterators allow the caller to remove elements from the underlying collection during the iteration with well-defined semantics.

List Of Iterator Sample Programs:

  1. How to iterate through collection objects?
  2. How to remove an element from collection using Iterator object?
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Difference between Enumeration and Iterator
The functionality of Enumeration and the Iterator are same. You can get remove() from Iterator to remove an element, while while Enumeration does not have remove() method. Using Enumeration you can only traverse and fetch the objects, where as using Iterator we can also add and remove the objects. So Iterator can be useful if you want to manipulate the list and Enumeration is for read-only access.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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