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 ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Every Object in Java includes an equals() and a hashcode() method, but they must be overridden to work properly. To understand how overriding works with equals() and hashcode(), we can study their ...