entries() The entries() method returns a new Iterator object that contains the [key, value] pairs for each element in the Map object in insertion order. In this particular case, this iterator object is also an iterable, so the for-of loop can be used.

What is the use of entry in Java?

Entry stores both the key and value together in one class, we get them both in a single operation. The same rules apply to using Java 8 stream operations. Streaming over the entrySet and working with Entry objects is more efficient and can require less code.

What is entry K V?

public static interface Map.Entry<K,V> A map entry (key-value pair). The Map. entrySet method returns a collection-view of the map, whose elements are of this class. The only way to obtain a reference to a map entry is from the iterator of this collection-view.