To have a program respond to a mouse click, you should a. write a class called ActionListener with a main() method b. write any actionListener method c. write a class that extends ActionListener d. write a class that implements ActionListener
Create a class complex that contains two double data members. Overload +, -, and * arithmetic operators, so that they can operate on the object of complex. Then find the expression a-b*c + d (where a, b, c, and d are complex objects).