Java HashMap hashItOut

Published: 14 March 2025
on channel: Cody Henrichsen

Review of the Java implementation of the HashMap data structure. Includes using a for-each with a Map.Entry and a while loop with an Iterator. It also demonstrates how to use a for loop with an Iterator.

Table of contents:

00:20 - Declare and initialize the HashMap
01:23 - Using a for-each with a HashMap
01:35 - Using the Map.Entry with the Key and Value
02:16 - Create an Iterator for the HashMap
03:08 - Extract the values from the HashMap to an ArrayList
03:36 - Using an Iterator in a for loop
04:11 - Demo of the hashItOut method
04:17 - Process the HashMap via the for-each loop
04:49 - Processing the HashMap via a while loop
05:15 - Process the HashMap with the Iterator

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