Iterable vs Iterator interface in Java | Java Beginners Tutorial
In Java, Iterable is an interface from the java.lang package. An object that implements the Iterable interface can be iterated over using a "for-each" loop. The Iterable interface has one method: iterator(), which returns an instance of an iterator. Examples of classes that implement Iterable include ArrayList, HashSet, LinkedList, and others.
Iterator is an interface from the java.util package. An object that implements the Iterator interface is used to iterate through elements of a collection. The Iterator interface has three main methods: hasNext(), which returns true if there is a next element in the iteration; next(), which returns the next element in the iteration; and remove(), which removes the last element returned by the next() call. Iterator is commonly used to iterate through collections such as ArrayList, HashSet, LinkedList, and others.
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