CSC 121: Computer Science I, Spring 2005

Lab 10

Laboratory 10 - Pattern Recognition: 2-D Arrays, Project 4

Goals:

To prepare for project 4: Working with 2-D arrays.

Getting started:

• Copy the folder Lab10 from the public folder on the I: drive to your class folder on the I: drive.
• Start up BlueJ

The Steps of the Lab:

1. Open the rainfall project.

   Do

   This project has one class, Rain. When you open the class in the class editor, you will see that a 2-D array called rainData has been defined and initialized. Each entry in the array contains a double that represents the amount of rain in inches that fell on that day. Flex your 2-D array muscles by writing the following methods: Write a method called totalRainfall that returns the total amount of rainfall (in inches) for the entire time period. Write a method called dryDays that returns the number of dry days (days with no rain). Write a method called averageRainfall that returns the average rainfall over all days. Write a method called weekendRain that returns the number of weekend days which had some rain. Write a method called washouts that returns the number of "washout weekends" - this is the number of weekends in which it rained on both Saturday and Sunday. Write a method called dryWeeks that returns the number of dry weeks - this is the number of weeks in which there was no rain all week.

DePauw University , Computer Science Department , Spring 2005
Maintained by Brian Howard ( bhoward@depauw.edu ). Last updated