Sorting Java Map in Descending Order

Date: 2023-10-20

This article explains how to sort Java Maps in descending order. Java Maps, collections of key-value pairs, lack inherent order, but sorting is achieved using TreeMap (for key-based sorting) or by converting the Map to a list, sorting with Collections.sort(), and reconstructing the Map. A custom comparator can be used for value-based sorting, allowing for flexible ordering rules. TreeMap sorts keys in ascending order by default; a custom comparator provides descending or other custom orders. Mastering map sorting enhances code readability and application performance.

Read more: https://examples.javacodegeeks.com/java-map-sort-descending/