Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

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.

How to remove duplicates from a List in Java There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used ...

JEP 450 (Compact Object Headers) has been targeted for delivery in JDK 24. This currently experimental feature optimizes heap utilization by shrinking the size of the mandatory object header in ...

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 ...