![]() All maps in Java implements Map interface. Remember that we cannot iterate over map directly using iterators, because Map interface is not the part of Collection. In the example code HashMap is used to demonstrate traversal of a Map. In Java, iteration over Map can be done in various ways. The forEach method performs the given action for each. HashMap iteration using for-each and iterator Java example In the first example, we use Java 8 forEach method to iterate over the key-value pairs of the HashMap. HashMap ( HashSet uses HashMap ) isnt designed for iterating all items, the fastest way to iterate over HashMap is a combination of.
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