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Week 3 Ilab cis 355




Question;iLAB OVERVIEW;Scenario and Summary;In this lab you will create two programs that use classes and methods.;Deliverables;Program files for each of the following two programs;Cylinder Date;At the beginning of ALL your programs, put a comment box that includes;the program name, your name, and a brief description of the program.;Example;/***********************************************************************;Program Name:;Programmer's Name: Student Name;Program Description: Describe here what this program will do;***********************************************************************/;How to submit your assignment;The programs MUST have the same names as the assignment title.;Each Java source file (*.java) must include a corresponding class file (*.class) program as evidence of success.;In addition to the program source code files and byte code;files, put all your program source code files and screen shots of your;program output files into a Word document.;You must use a zipped folder to send your weekly assignment to;the Dropbox. Do not send subfolders within your zipped folder. Place ALL;of and.class files for the week into the one zipped folder.;The zip folder should be named: CIS355A_YourLastName_iLab_Week3, and;this zip folder will contain all the weekly programming assignments.;iLAB STEPS;STEP 1: Cylinder (20 points);Back to Top;Create a class called Cylinder.javathat contains two double-precision instance variables named radius and height. The class should include a constructor that initializes the radius and height variables. Also, you need a class method named volume();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 called and 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.;Grading Rubric;Cylinder;Points;Description;Standard header included;1;Must contain program's name, student name, and description of the program;Program compiles;2;Program does not have any error;Program executes;2;Program runs without any error;Created Cylinder class;3;Program contains the Cylinder class;Constructor created that initializes variables;2;A constructor method exists in the Cylinder class and initializes radius and height;Contains a volume method;2;The volume method exists in the Cylinder class and it returns the volume of a Cylinder object;CylinderTest class, which drives the application, is created;4;A driver class with the main method;Correct output is displayed;4;Program displays the radius, height, and volume of three Cylinder objects;Subtotal;20;STEP 2: Date (20 points);Back to Top;Create a program called to 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 that 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;Incrementing into the next month, for example, use date: 02/28/2011;Incrementing into the next year, for example, use date: 11/27/2011;Incrementing into the next month in a leap year, for example, use date: 02/28/2012;Sample Program Output;Checking increment;Date object constructor for date 11/27/2011;Incremented Date:11/28/2011;Incremented Date:11/29/2011;Incremented Date:11/30/2011;Day 31 invalid. Set to day 1.;Incremented Date:12/1/2011;Incremented Date:12/2/2011...;Incremented Date:12/30/2011;Incremented Date:12/31/2011;Day 32 invalid. Set to day 1.;Incremented Date:1/1/2012;Incremented Date:1/2/2012;Incremented Date:1/3/2012;Incremented Date:1/4/2012;Incremented Date:1/5/2012;Incremented Date:1/6/2012;Grading Rubric;Date;Points;Description;Standard header included;1;Must contain program?s name, student name, and description of the program;Program compiles;2;Program does not have any error;Program executes;2;Program runs without any error;Created Date class;6;Date class has nextDay method and does not use any other predefined Java class for date;DateTest class, which drives the application, is created;4;User enters the values for month, day, and year in a numeric format and test the nextDay method;Correct output is displayed;5;The correct date increment is displayed;Subtotal;20


Paper#36676 | Written in 18-Jul-2015

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