A class can define as many constructors as you need. Each of these must differ in number or types of parameters.
This isn't quite as clear as I'd have liked, and on Discord, I suggested this alternative:
A class can define as many constructors as you need. However, you must be able to tell them apart from their parameter list. They either need different numbers of parameters or at least some of the parameters must differ in type.
This isn't quite as clear as I'd have liked, and on Discord, I suggested this alternative: