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I know this is probably a silly question.. When would I need to write my own iterator? Is it just when designing my own container class? Are there any other times when I would want to create my own iterator?
Examples would be appropriated.
-Jon
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Iterator in Java is an object used to cycle through arguments or elements present in a collection. It is derived from the technical term “iterating,” which means looping through. Generally, an iterator in Java is used to loop through any collection of objects.
Iterator and for-each loop are faster than simple for loop for collections with no random access, while in collections which allows random access there is no performance change with for-each loop/for loop/iterator.
Benefits of Iterators. Use of an iterator simplifies the code and makes it general. Benefits of using this iterator API include: treats variables of all types, sizes, and shapes uniformly, whether they fit in memory or not, even if a single row won't fit in memory.
Yes, there are other times. For a few examples:
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