There is a more recent offering of this course. This is an archive of the
course which was offered in Fall 2019.
CS1011
Class Exercises
Week 6 Lecture 2 Class Exercises
## UML Class Diagram
<pre>
+-----------------------------------------+
| Mouse | <== Class name
+-----------------------------------------+
| - daysOld: int |
| - weight: double | <== Attributes/object variables
| - growthRate: double |
+-----------------------------------------+
| + setGrowthRate(rate: double): void |
| + grow(): void | <== Behaviors/methods
| + display(): void |
+-----------------------------------------+
</pre>
## Exercise 1: Mouse Implementation
Implement the `Mouse` class shown in the UML class diagram above.
* The `grow()` method must increase the age of the mouse by one and adjust the weight of the mouse as dictated by the growth rate. Note: newWeight = oldWeight * growthRate
* The `display()` method prints to the console the information associated with the `Mouse` object using the following format: "8 day old mouse weighing 7.2 ounces"
## Exercise 2: Mouse Modifications
Modify the `Mouse` class as follows. Assume that a mouse object `mickey` exists:
1. Make it possible to say `mickey.setName("Mickey");` and have the name **Mickey** display when `mickey.display();` is called.
2. Make it possible to say `mickey.grow(3);` and have the mouse age by three days (instead of just one as is done with `mickey.grow();`).
3. Create an accessor that returns the mouse's current weight.
4. Create an accessor that returns the mouse's current age (in days).
5. Create an accessor that returns the mouse's current growth rate.
## Exercise 3: Using the Mouse class
* Create a driver program that asks the user to enter the name and growth rate for a mouse and displays characteristics for the mouse at the end of each week of growth for its first year of life.
* Create a driver program that asks the user to enter an integer, **desiredMice** and then does the same thing as above, except for **desiredMice** mouse objects.
