{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW 2 Class Implementation Solution

# HW 2 Class Implementation Solution - CS 302 Worksheet...

This preview shows pages 1–2. Sign up to view the full content.

CS 302 Worksheet 2 (Chapter 3): The Professor’s Dairy One of the professors in the CS department has decided to retire from the university and start her own dairy farm. She has already purchased some prime grazing land, restored an old barn, and acquired some cows. And, being a CS professor, she has decided to write a Java program to help. She has started to write Dairy.java , shown below. /** The Dairy class keeps track of a dairy herd and the profitability of producing * either milk or butter. */ public class Dairy { /** Instance data member to keep track of the number of cows */ private int numCows; //Identifier can vary, but should relate to cows or herd /** * Constructs a new dairy with initialCows cows * @param initialCows the initial number of cows in the herd */ public Dairy(int initialCows) { numCows = initialCows; } /** * Adds one to the number of cows in the herd */ public void addCow() { numCows++; //or numCows = numCows + 1; } /** * Returns the number of cows currently in the herd * @return the number of cows */ public int getNumCows() { return numCows; } /** * Returns the profit of selling the herd’s milk * (assuming each cow produces 10 gallons of milk) * @param pricePerGallon the price received for a gallon of milk * @return the total profit from selling milk */ public double calcMilkProfit(double pricePerGallon) { return 10.0 * pricePerGallon * getNumCows(); } /** * Returns the profit of selling butter made from the herd’s milk

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern