Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions.

Remove Java List duplicates through code The first two examples to solve this deduping problem use specialized Java components and APIs. However, it’s a fun exercise to just use the standard loop ...

A list is consist of a lot nodes Each node contain its own value and a reference to the next node There are two special nodes, head and tail: head this is first node of the list and tail is the last ...

Java 25 introduces Compact Object Headers (JEP 519), delivering up to 30% CPU savings and reduced memory usage for applications with small objects. This user-friendly feature compresses object headers ...

The use of the Java Streams API to find duplicates. The use of the frequency method in Java’s Collections class. Brute-force Java duplicate finder A brute-force approach to solve this problem involves ...