Constructor overloading in Java occurs when a class has multiple constructors, each with a separate and unique method signature. Overloading constructors in Java provides a variety of benefits to both ...

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.