Grouping Anagrams Using Sorted Strings as HashMap Keys
---------------🎈🎈 LeetCode Problem 49: Group Anagrams 🎈🎈-------------------
In Java, arrays cannot be used directly as keys in a HashMap because their hashCode() method does not reflect the actual content. It is therefore recommended to use immutable objects such as strings as keys.
Approach 1: Use a Sorted String as the Key
⭐️ Since two ...
Posted on Fri, 18 Sep 2026 16:20:45 +0000 by ckwall