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

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

In the Second Edition of Effective Java, Josh Bloch introduces use of the builder pattern in Item #2 for dealing with constructors that require too many parameters.