Web Reference: Dec 16, 2024 ยท In this tutorial, weโll look at the different ways of iterating through the entries of a Map in Java and write a benchmark test to determine the most efficient method. Note that you can use map.values() or map.keySet() if you want to loop through values or keys only. To summarize the other answers and combine them with what I know, I found 10 main ways to do this (see below). Also, I wrote some performance tests (see results below). Jul 23, 2025 ยท In Java, a Map is a data structure that is used to store key-value pairs. Understanding how to iterate over the elements of a map plays a very important role. There are 5 ways to iterate over the elements of a map, and in this article, we are going to discuss all of them.
YouTube Excerpt: Do you know there are 5 different ways you can use to write code that iterates a
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