MutableIterable extends Iterable and provides the MutableIterator for mutable collections.
It provides the iterator that gives you the possibility to iterate your collection. The first interface in the collections hierarchy is Iterable. Here is a general scheme of a Kotlin collection framework:Īs you can see, the immutability principle was implemented, which means that you cannot perform modifications on collections. Let’s look at what Kotlin collections actually are. Of course, you still have Java to Kotlin compatibility, so all Java collections are available for Kotlin applications as well. It’s the developer’s task to choose the right implementation for the given purpose.
At the same time, we have a lot of different collection interface implementations. Java collections are quite straightforward and an easy component for simple use cases.
Software Engineer Android use collection every day in Java/Android development for different purposes: modifying data collections and displaying a UI with a list of items as well as business logic-related processes.
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