91影视

What is a method's signature?

Look at the following class: public class CheckPoint { public void message(int x) { System.out.print(鈥淭his is the first version 鈥�); System.out.println(鈥渙f the method.鈥�); } public void message(String x) { System.out.print(鈥淭his is the second version 鈥�); System.out.println(鈥渙f the method.鈥�); } } What will the following code display? CheckPoint cp = new CheckPoint(); cp.message(鈥�1鈥�)

How many default constructors may a class have?

What is a problem domain?

When designing an object-oriented application, who should write a description of the problem domain?

How do you identify the potential classes in a problem domain description?

What two questions should you ask to determine a class's responsibilities?