Description
Lab Objectives
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Be able to create complete Java programs with
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Simple arithmetic operations
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Conditional statements (if, if-else statements)
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Be able to use proper test data sets to thoroughly test and debug a program
Task: BMI (Body Mass Index) Calculation
Write a Java program to do:
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Ask user if he/she wants to your metric system or English system.
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Ask user to enter weight and height in corresponding units.
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Calculate the user’s BMI, and round the result to nearest integer.
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Issue a message based on user’s BMI (see the scale table below.)
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(Optional) design a fancy user interface (i.e. use nice greeting words, etc.)
BMI = (weight in kilograms) / (height in meters)2 or BMI = ( Weight in Pounds / ( Height in inches)2 x 703 (note: the result BMI is an integer.)
BMI scale table (simplified version)
|
BMI |
<=24 |
25-29 |
>30 |
|
Status |
normal |
overweight |
obese |
Testing requirements:
Document your test cases below to make sure all the possible scenarios are tested plus a few error/wrong cases.
|
Test |
Scenario |
Test data used |
output |
|
1 |
English system, normal BMI |
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2 |
English, overweight |
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3 |
English, obese |
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4 |
Metric, normal |
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5 |
Metric, overweight |
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6 |
Metric, obese |
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7 |
Error due to wrong date format such as enter “3a2” for weight |
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8 |
Error due to wrong data values such as enter 0.0 for height |
Submission
Create a script file showing your source program plus all 8 test runs. Submit two files, your Java source code (say yangBMI.java) and the script file on blackboard under Lab4.
