What are iterator, iterable, and iteration?
Iteration is a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, … Read more
iterable
Why is Java’s Iterator not an Iterable?
Why does the Iterator interface not extend Iterable? The iterator() method could simply return this. Is it on purpose or just an oversight … Read more
How do I add the contents of an iterable to a set?
What is the “one […] obvious way” to add all items of an iterable to an existing set? Best Answer 6
Why does Iterable not provide stream() and parallelStream() methods?
I am wondering why the Iterable interface does not provide the stream() and parallelStream() methods. Consider the following class: public class Hand implements … Read more
Why does Stream not implement Iterable?
In Java 8 we have the class Stream<T>, which curiously have a method Iterator<T> iterator() So you would expect it to implement interface … Read more
Java: Get first item from a collection
If I have a collection, such as Collection<String> strs, how can I get the first item out? I could just call an Iterator, … Read more
Easy way to convert Iterable to Collection
In my application I use 3rd party library (Spring Data for MongoDB to be exact). Methods of this library return Iterable<T>, while the … Read more
Convert Iterable to Stream using Java 8 JDK
I have an interface which returns java.lang.Iterable<T>. I would like to manipulate that result using the Java 8 Stream API. However Iterable can’t … Read more
What exactly are iterator, iterable, and iteration?
What is the most basic definition of “iterable”, “iterator” and “iteration” in Python? I have read multiple definitions but I am unable to … Read more
In Python, how do I determine if an object is iterable?
Is there a method like isiterable? The only solution I have found so far is to call hasattr(myObj, ‘__iter__’) But I am not … Read more
