Object Oriented Programming Through Java by Pearson

5.6 Class Objects and Methods

Line No. 16:   declares a default constructor with nill arguments. However, it calls Set

methods to set initial values of 0.0 for a, b, r, t at Line No. 18. Note that these

Set methods are defined at Line Nos. 10–13.

Overloading of constructors means the same name but different signatures (number and

type of parameters). In the above example, we have overloaded the constructors as shown

below:

Line No. 16:  

Polar() { ………………………….) Nil arguments. This type of construc-

tor is called NIL arguments constructor and also as default constructor.

Line No. 20:   Polar2(double ad, double bd){…………………………………….}

2 arguments

Line No. ...