Question

a. Create a FitnessTracker class that includes data fields for a fitness activity, the number of minutes spent participating, and the date. The class includes methods to get each field. In addition, create a default constructor that automatically sets the activity to "running", the minutes to 0, and the date to January 1 of the current year. Create an application that demonstrates each method works correctly.

b. Create an additional overloaded constructor for the FitnessTracker class you created in Exercise 3a. This constructor receives parameters for each of the data fields and assigns them appropriately. Add any needed statements to the TestFitnessTrackerapplication to ensure that the overloaded constructor works correctly, save it, and then test it.

FitnessTrackers.java

import java.time.*;
public class FitnessTracker {
String activity;
int minutes;
LocalDate date;
public FitnessTracker() {
}
public FitnessTracker(String a, int m, LocalDate d) {
}
public String getActivity() {
}
public int getMinutes() {
}
public LocalDate getDate() {
}
}

TestFitnessTracker.java

import java.time.*;
public class TestFitnessTracker
{
public static void main(String[] args)
{
FitnessTracker exercise = new FitnessTracker();

System.out.println(exercise.getActivity() + " " + exercise.getMinutes() +
" minutes on " + exercise.getDate());

// code to test constructor added for exercise 3b

LocalDate date = LocalDate.of(2020, 8, 20);
FitnessTracker exercise2 = new FitnessTracker("bicycling", 35, date);

System.out.println(exercise2.getActivity() + " " + exercise2.getMinutes() +
" minutes on " + exercise2.getDate());
}
}

Answer 1

Hi,

Here is the code for your assignment. I have added comments in the code for your reference.

The output and screenshot are at the end of this answer.

If you have any questions or need clarifications, leave me a comment.

If this answer helps you with your assignment, spare a moment and upvote this answer.

//File: FitnessTracker.java

import java.time.*;
public class FitnessTracker {
String activity;
int minutes;
LocalDate date;
public FitnessTracker() {
//3a
//set defaults
activity = "running";
minutes = 0;
date = LocalDate.ofYearDay( LocalDate.now().getYear(), 1); //1st Jan of the year
}
//Parameterized constructor //3b
public FitnessTracker(String a, int m, LocalDate d) {
activity = a;
minutes = m;
date = d;
}
public String getActivity() {
return activity;
}
public int getMinutes() {
return minutes;
}
public LocalDate getDate() {
return date;
}
}

//File: TestFitnessTracker.java

import java.time.*;
public class TestFitnessTracker
{
public static void main(String[] args)
{
FitnessTracker exercise = new FitnessTracker();
System.out.println(exercise.getActivity() + " " + exercise.getMinutes() +
" minutes on " + exercise.getDate());
// code to test constructor added for exercise 3b
LocalDate date = LocalDate.of(2020, 8, 20);
FitnessTracker exercise2 = new FitnessTracker("bicycling", 35, date);
System.out.println(exercise2.getActivity() + " " + exercise2.getMinutes() +
" minutes on " + exercise2.getDate());
}
}

//Output