Chapter 12
Answers to Chapter 12 Review Questions
| 1: | You are writing a Planet class for a solar system simulation program. You need to keep track of the number of instantiated Planet objects. If you were to store this data as a variable inside Planet, should it be an instance variable or a static variable? Why? |
| A1: | As a static variable, because the variable describes the Planet objects as a group. |
| 2: | Can you assign a value to a static variable even if no objects have been created? |
| A2: | Yes. |
| 3: | Can a static variable be accessed from within an object of the class in which it is declared? |
| A3: | Yes. |
| 4: | The following declaration was found inside a class:public static const double MassOfElectron = 9.0e-28; Is it correct? Why or why not? |
| A4: | No. A const is ... |
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