Say goodbye to the public static void main method in Java 21 with the unnamed classes and instance main methods preview features.

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.

Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof() .

A vender I'm working with provided a static library (.a) and two header files. I'm purely a Java guy, and we'll eventually get to a pure Java library, but in the meantime I'd like to test using ...