The Java language spec lists 10 Java constructor types, including default, no-args, canonical, private parameterized, generic, overloaded and anonymous.

What's the benefit of making a private constructor and a public getInstance method? I understand why you would make the constructor private: to keep someone from instantiating a class.

Java 7 introduced an alternative to listFiles () called DirectoryStream. It works well with the for-each construct, allowing us to iterate over the contents of the directory instead of reading ...

A preview feature in Java is one that is not yet added permanently even though its design, specification, and implementation are complete. Presently Java has quite a few preview features in the ...