Java TreeMap: Descending Order for Employee IDs (Comparator) | Java Collection Framework

Sometimes, you might need to view your employee data in reverse order based on their IDs. This video explores using a custom Comparator to achieve **descending order for Employee IDs** within your Java TreeMap, a powerful sorting tool from the Java Collection Framework.

**In this video, you'll discover:**

* The power of a Comparator: How it allows you to define custom sorting logic for your TreeMap keys (like Employee IDs).
* Step-by-step explanation of creating a Comparator for descending Employee ID order.
* Code examples and demonstrations for clear understanding.
* Practical applications of sorting employees by ID in descending order within TreeMap for specific use cases.

**Whether you're a Java beginner or an experienced programmer, this video will equip you with the skills to effectively manage and sort employee data in reverse order using TreeMap and Comparators.**

**Bonus Tip:** We'll also explore some best practices for using Comparators with TreeMap for various sorting needs within your Java applications.

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TreeMap (Comparator - Descending Order EmployeeId) | Java Collection Framework

Java Source Code here:

To Download TreeMapDemoDescOrderEmpId Project Click the below link

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[swietanasyczewska]

Hi, how to change Comparator to sort TreeMap by value?