In the example code HashMap is used to demonstrate traversal of a Map. HashMap iteration using for-each and iterator Java example Different ways to iterate over HashMap of ArrayList We will limit our code to 3 demo examples i.e., Using keySet () and enhanced for-each loop Using entrySet () and Iterator interface Using forEach in Java 1. Please refer to a couple of our other articles to learn more about the class itself and the differences between HashMap and Hashtable. A class very similar to HashMap is Hashtable.
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