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

As the above screen snapshot indicates, the class dustin.examples.Person exists in both the src2 directory and (not shown here) in the src directory (“duplicate class: dustin.examples.Person”).

I'm making a game for Android using Java and the Libgdx engine. However, I want the code to be independent of the engine, and so am wrapping any references to Libgdx in its own class. For example ...

Note that an instance of the Long wrapper class is different from the lower-case long primitive type. Fortunately, Java’s autoboxing feature typically hides the differences between them, although the ...