In what scenarios would you use a private constructor

In what scenarios would you use a private constructor

In what scenarios would you use a private constructor?

A private constructor is used in scenarios where object creation should be controlled or restricted. This includes Singleton classes, where only one instance of the class can exist. It ensures that no other class can instantiate it, maintaining a single point of access. Another scenario is when a class contains only static members and methods. Here, a private constructor prevents instantiation as there’s no need for an object to call these static elements. Lastly, it’s used in Factory Method design pattern, where we want the factory method to control how and when objects are created.