A health care issue that has been in the news lately is the computerization of h

Question

A health care issue that has been in the news lately is the computerization of health records. This probability is being approached cautiously because of sensitive privacy and security concerns, among others. [We address such concerns in later excercises.] Computerizing health records could make it easier for patients to share their health profiles and histories among their various health care professionals. This could improve the quality of health care, help avoid drug conflicts and erroneous drug prescriptions, reduce costs and in emergencies, could save lives. In this excercise, you'll design a "starter" HealthProfile class for a person. The class attributes should include ther person's first name, last name, gender, date of birth (consisting of seperate attributes for month, day, and year of birth), height (in inches) and weight (in pounds). Your class should have a constructor that recieves this data. For each attribute, provide set and get functions. The class also should include functions that calculate and return the user's age in years, maximum heart rate and target heat rate range, and body mass index (BMI). BMI is calculated by (weight in pounds * 703)/(height in inches * height in inches). Write an application that prompts for the person's information, instantiates an object of class HealthProfile for that person and prints the information from that object - including the person's first name, last name, gender, date of birth, height, and weight - then calculates and prints the person's age in years, BMI, maximum heart rate and target-heart-rate range. It should also display the "BMI values" chart. And calculate the person's age.

Explanation / Answer

Well firstly you need to make a class for the HealthProfile

public class HealthProfile

Then you would need to make the attributes for the class as specified.


String firstName
String lastName
char gender
int dayOfBirth
int monthOfBirth
int yearOfBirth
int height
int weight

Then make a constructor that allows you to put in this information/

public HealthProfile(String fName, String lName, ....) etc for all of the attributes.

You will need to set the attributes put in to the attributes in the class. You may also want to do some error checking, like a day, month, and year can't be 0 or less. The day should not be more than 28, 29, 30, or 31 depending on the month and year. The month should not be more than 12, etc. The easiest way to do this is to do the set method for each attribute and put the checks in there.

Then call the set method to set each attribute in the constructor.

Then you need to make the get and set methods. One example of each would be.

public String getFirstName()
{
return firstName;
}
public void setFirstName(String fName)
{
firstName = fName;
}

You will have to find out how to do the calculations for the heart rate and bmi yourself.

To get the age in years, use the Calendar class. The API is here, you will need to know how to get the current day, month, year from this Calendar. It is not too hard.
http://docs.oracle.com/javase/6/docs/api/java/util/Calendar.html

Then write another class that has a main method and use this to create a HealthProfile class and do what you need.

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