CSc 221: Software Design LaboratoryAssignment 1

Please note:

    • This is an individual assignment; please do your own work. Sharing and/or copying code in part or as a whole with/from others will result in a grade of 0 and disciplinary actions for all involved parties. If you run into problems and have done your best to solve them, please talk to me during office hours or by e-mail.

    • There is a 25% grade deduction for every day the assignment is late unless prior permission is granted.


Preamble

Body mass index (BMI) is a measure of the body’s fat based on height and weight. BMI applies to adult men and women and considered a convenient rule of thumb to broadly categorize a person as underweight, normal weight, overweight, or obese based on tissue mass (muscle, fat, and bone) and height. That categorization is the subject of some debate about where on the BMI scale the dividing lines between categories should be placed. Commonly accepted BMI ranges are underweight (under 18.5 kg/m2), normal weight (18.5 to 25), overweight (25 to 30), and obese (over 30)I. For more information, please visit https://en.wikipedia.org/wiki/Body_mass_index

In this assignment, you will develop a Java command-line program to compute a person’s BMI based on the criteria described earlier.

Requirements:

    1. Your program must compile, run, and conform to the Java conventional programming rules

    2. Comment your code:

        ◦ Place Javadoc comments for the class’ definition and for each of the class’ members (variables and methods)

        ◦ Place non-Javadoc comments for major steps in your code

    3. Submit a separate source file for each of the following two classes:

    1. – a container for the data and operations relating to a person’s weight.

    2. – a class which contains themethod and performs unit testing on the previous class.

3.  You must use

.  .…
.…
for printing. Your solution should
NOT contain






the methods

OR

.









    4. Class:

a.    Four variables for    ,            ℎ    , ℎ      ℎ      , and         ℎ      .
    b. Default constructor to initialize the four variables to their default values ("" for strings and 0 for numeric).

    c. Non-default constructor to initialize the four variables using 4 constructor parameters.

    d. Accessors (setters) and mutators (getters) methods for all four variables – 8 methods in total.

    e. to return the person’s age.

    • In order to compute the age, you will need to programmatically obtain the current year. DO NOT hard-code the current year as part of you class. Use the following Java statement to retrieve the current year:

..

f.to return the person’s BMI:

        ℎ  /ℎ      ℎ  
    5. Class:

Remember:


    I https://en.wikipedia.org/wiki/Body_mass_index
Assignment 1 – CSc 221 – CCNY    1
The City College of New York    Department of Compute Science

CSc 221: Software Design Laboratory


    • Show a message string before the prompt.

 Using    ONLY

    • Create a method called; the method returns one of the following strings:

        ◦ "Underweight": if BMI is under 18.5

        ◦ "Normal Weight": if BMI is between 18.5 and 25

        ◦ "Overweight": if BMI is between 25 and 30

        ◦ "Obese": if BMI is more than 30

    • Create an instance of class using the constructor. Use the mutator methods to assign values to the class’ 4 private members. The test values are shown in Figure 1.

    • Prompt the user to enter the person’s , , ℎ      ℎ  ,         ℎ  . These values will be used in the next step. Sample test values are shown in Figure 2.
    • Create an instance ofusing the non-default constructor. Use the values from the previous step.

    • Using print the information such that it is formatted as shown in the example in Figure 1 and Figure 2. All leading labels should have column widths of 16 characters.

Grading:




Item
Points
Comments (Javadoc and major steps)
10

class (Compiles and runs)





4 variables

2
Accessor and mutator methods
8
Constructors

10


10


10




class (Compiles and runs)
3



using the default constructor

Instance of


Prompt




and capture of input
4
Setters
using the non-default constructor
4
Instance of

10
Prompt




and capture of input
4
Printing person’s info to command prompt from both instances
15
Correct output

10




50





















Assignment 1 – CSc 221 – CCNY    2
The City College of New York    Department of Compute Science

CSc 221: Software Design Laboratory


Figures:








Figure 1: Sample Run 1








Figure 2: Sample Run 2






        ℎ

      ℎ    16
  ℎ                









Figure 3: output of program























Assignment 1 – CSc 221 – CCNY    3