In response to my recent blog posting Immutable Java Objects, Matt brought up a good point of discussion related to making Java classes truly immutable by declaring them as final so that they ...

Since Java 21, wrapper classes have played an increasingly sophisticated role in Java’s type system. Here’s everything you ...

In contast, elements in a "mutable" class can be changed, and a mutable class can be a subclass of an immutable class. See class. Advertisement. THIS DEFINITION IS FOR PERSONAL USE ONLY.