Marcus Green Constructor Q doubt?

[Vishy Karl]

Hi All,
Following Q appears in Marcus Green Exam,

 
Which of the following statements are true?  
1   A constructor may not be declared as private 
2   A Constructor with no arguments will be the default constructor 
3   Constructors cannot be overloaded 
4   A call to a constructor in a parent class can only be made from within a constructor. 
  

The Correct Answer is
4) A call to a constructor in a parent class can only be made from within a constructor.
A constructor can be declared as private. Although the default constructor takes no arguments, creating a no args constructor does not make it the default constructor. Overloading constructors is a very common programming technique.
I cannot understand why B is false ?? Why does creating a no args constructor does not make it the default constructor ???

Thanks in Advance,

[Vicken Karaoghlanian]

Hi Vishy,
The default constructor is created implicitly by the compiler. When you create any constructor (with or without arguments), you are actually telling the compiler not to create the default constructor. Creating a constructor with no args DOES NOT make that constructor the default.
The default is only created by the compiler and not by the programmer.
Hope this helps.

[Vishy Karl]

Thanks Vicken,
Got it ,
bye,