(Target-Heart-Rate Calculator) While exercising, you can use a heart-rate monito
ID: 3672132 • Letter: #
Question
(Target-Heart-Rate Calculator) While exercising, you can use a heart-rate monitor to see that your heart rate stays within a safe range suggested by your trainers and doctors. According to the American Heart Association (AHA) (www.americanheart.org/presenter.jhtml?identifier=4736), the formula for calculating your maximum heart rate in beats per minute is 220 minus your age in years. Your target heart rate is a range that is 5085% of your maximum heart rate. [Note: These formulas are estimates provided by the AHA. Maximum and target heart rates may vary based on the health, fitness and gender of the individual. Always consult a physician or qualified health care professional before beginning or modifying an exercise program.] Create a class called HeartRates. The class attributes should include the person's first name, last name, year of birth and the current year. Your class should have a constructor that receives this data as parameters. For each attribute provide a property with set and get accessors. The class also should include a property that calculates and returns the person's age (in years), a property that calculates and returns the person's maximum heart rate and properties that calculate and return the person's minimum and maximim target heart rates. Write an application that prompts for the person's information, instantiates an object of class Heart-Rates and prints the information from that objectincluding the person's first name, last name and year of birththen calculates and prints the person's age in (years), maximum heart rate and targetheart-rate range.
Explanation / Answer
public class HeartRates {
private String firstname;
private String secondname;
private String DOB;
private int day;
private int month;
private int year;
public HeartRates(String firstname,String secondname,int day,int month,int year){
this.setFirstname(firstname);
this.setSecondname(secondname);
this.setDOB(day,month,year);
}
public String getDOB() {
return DOB;
}
public void setDOB(int day,int month,int year) {
this.day=day;
this.month=month;
this.year=year;
DOB = this.day+" "+this.month+" "+this.year;
}
public String getSecondname() {
return secondname;
}
public void setSecondname(String secondname) {
this.secondname = secondname;
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public int age(){
int age=2013-this.year;
return age;
}
public double MaxHeartRate(){
int range=age()-220;
return range;
}
public double TargetHeartRate(){
int range=(50/100)-(80/100);
double target=range*MaxHeartRate();
return target;
}
}
///////////////////////////DRIVER CLASSS
/**
*
*/
package Target_Heart_Rate_Calculator;
/**
* @author BigFire
*
*/
import java.util.Scanner;
public class HeartRatesTest {
/**
* @param args
*/
/*
* private String firstname;
private String secondname;
private String DOB;
private int day;
private int month;
private int year;
* */
public static void main(String[] args) {
// TODO Auto-generated method stub
@SuppressWarnings("resource")
Scanner input=new Scanner(System.in);
HeartRates target=new HeartRates("Amina","Abomi",12,12,1988);
System.out.println("Target-Heart-Rate Calculator)");
System.out.println("Enter Your First and Last name with spaces ");
String fn=input.nextLine();
target.setFirstname(fn);
String ln=input.nextLine();
target.setSecondname(ln);
System.out.println("Enter Date of Birth with Spaces eg 12 01 1988 : ");
int day=input.nextInt();
int month=input.nextInt();
int year=input.nextInt();
target.setDOB(day,month,year);
System.out.println("Target-Heart-Rate Calculator)");
System.out.println();
System.out.printf("%s %s",target.getFirstname(),target.getSecondname());
System.out.printf(" %s %s","DOB",target.getDOB());
System.out.println();
System.out.println("Age "+target.age());
System.out.println();
System.out.println("MaxHeartRate : "+target.MaxHeartRate());
System.out.println();
System.out.println("TargetHeartRate: "+target.TargetHeartRate());
}
}
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