'Good Code Collector: What You Need to Know About the Java Collections Framework' java arrays
all collections subordinate to it are iterable regardless of their implementation type.
ArrayList contains an array whose length will increase automatically when new elements are added to it. As you can see, the main advantages of the LinkedList class are related to the operations and ListIterator.add. Their cyclomatic complexity will always be O. In case of add it is better to use LinkedList, but for get, ArrayList is better.
Set is a collection that contains no repeating elements. This interface is designed to model abstractions of a mathematical set. Structurally, Map does not inherit the Iterable collection and has several unique methods that are unique to it. WeakHashMap is a class that organizes weak object references with their keys. It is used for dynamic objects. For example, when building systems with garbage collection functions. It is not included in the list of objects to be deleted because it is ignored by the garbage collector when detecting objects it contains.
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