7/22/2019 CIS 355 Lab 3 Arrays, Classes, And Objects

1/1

CIS 355 Lab 3: Arrays, Classes, and Objects

downloadCIS 355 Lab 3: Arrays, Classes, and Objects

Program files for each of the following two programs

1. Cylinder & Cylinder test

2. Date & Date test

Step 1: CylinderCreate a class called Cylinder.java that contains two double-precision instance variables named radiusand height. The

class should include a constructor that initializes the radius and height variables. Also, you need a class method

namedvolume()that returns the volume of a Cylinder object. The volume of a cylinder is given by its radius squared

times its height times Pi (radius * radius * height * Math.PI). You can either use the value 3.1416 for Pi or use the Java

provided value named Math.PI.

Write a class calledCylinderTest.javaand declare an array of three Cylinder objects to call the methods you declared

in the Cylinder class. Make sure that all class methods are called from main(). Have main() display the value returned by

volume() and verify the returned value by hand calculations (paper/pencil). Prompt the user to enter the values for the

radius and height of each Cylinder object in the array.

Step 2: Date

Create a program called Date.javato perform error-checking on the initial values, for instance: fields month, day, and

year. Also, provide a method nextDay() to increment the day by one. The Date object should always remain in a

consistent state.Write a program called DateTest.javathat prompts the user to enter the month, day, and year as numeric values. This

program then creates a Date object using the Date class you just created and tests the nextDay() method. This can be

done in a loop of 40 iterations: the Date object calls the nextDay() method and prints the date during each iteration of

the loop. This loop is to illustrate that the nextDay() method works correctly. Test the following cases:

http://kipqstheyeary1.blogspot.com/2013/11/cis-355-lab-3-arrays-classes-and-objects.htmlhttp://homeworkdaddy.com/DEVRY/CIS/CIS355/CIS-355-Lab-3-Arrays-Classes-and-Objects.htmlhttp://homeworkdaddy.com/DEVRY/CIS/CIS355/CIS-355-Lab-3-Arrays-Classes-and-Objects.htmlhttp://homeworkdaddy.com/DEVRY/CIS/CIS355/CIS-355-Lab-3-Arrays-Classes-and-Objects.htmlhttp://kipqstheyeary1.blogspot.com/2013/11/cis-355-lab-3-arrays-classes-and-objects.html