Confusion on instance factroy method used in ch-03 listing 3-6

[AMIT TIWARI]

Hi Ashish,

I have one confusion regarding instance factory method. As per chapter 02 listing 2-6 - If a class defines an instance factory method, the class must define a public constructor.Now when I came to ch 03 listiing 3-5 the ContollerFactory class defines an instance factory method ,But why it does not defines a public constructor ?

Please let me know the reason.

Thanks,

Amit