EBK JAVA PROGRAMMING
9th Edition
ISBN: 9781337671385
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 4, Problem 3PE
Program Plan Intro
a.
Construct the default constructor
Filename: “FitnessTracker.java”
- Import the header files in the program.
- Define the “FitnessTracker” class.
- Declare the required variables.
- Define of constructor
- Set the default values
- Get the local date
- Define “getActivity” method
- Return the activity
- Define “getMinutes” method
- Return the minutes.
- Define “getDate” method
- Return the date.
Filename: “TestFitnessTracker.java”
- Define the “TestFitnessTracker” class.
- Define the main method.
- Create an object for “FitnessTracker” class.
- Display the result for exercise (a).
- Create an object for “LocalDate” class
- Define the main method.
Program Plan Intro
b.
Construct the parameterized constructor
Program plan:
Filename: “FitnessTracker.java”
- Import the header files in the program.
- Define the “FitnessTracker” class.
- Declare the required variables.
- Define of constructor
- Set the default values
- Get the local date
- Define of parameterized constructor
- Set the values.
- Define “getActivity” method
- Return the activity
- Define “getMinutes” method
- Return the minutes.
- Define “getDate” method
- Return the date.
Filename: “TestFitnessTracker.java”
- Define the “TestFitnessTracker” class.
- Define the main method.
- Create an object for “FitnessTracker” class.
- Display the result for exercise (a).
- Create an object for “LocalDate” class
- Create an object for “FitnessTracker” class.
- Display the result for exercise (b).
- Define the main method.
Program Plan Intro
c.
Call the three parameter constructor
Program plan:
Filename: “FitnessTracker2.java”
- Import the header files in the program.
- Define the “FitnessTracker2” class.
- Declare the required variables.
- Define of constructor
- Set the default values using “this” method.
- Define of parameterized constructor
- Set the values.
- Define “getActivity” method
- Return the activity
- Define “getMinutes” method
- Return the minutes.
- Define “getDate” method
- Return the date.
Filename: “TestFitnessTracker2.java”
- Define the “TestFitnessTracker2” class.
- Define the main method.
- Create an object for “FitnessTracker2” class.
- Display the result for exercise (c).
- Create an object for “LocalDate” class
- Create an object for “FitnessTracker2” class.
- Display the result for exercise (b).
- Define the main method.
Expert Solution & Answer
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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. Save the file as FitnessTracker.java. Create an application that demonstrates each method works correctly, and save it as TestFitnessTracker.java.
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 TestFitnessTracker application to ensure that the overloaded constructor works correctly, save it, and then test it.
c - Modify the FitnessTracker class so that the default constructor calls the three-parameter constructor. Save the class as FitnessTracker2.java. Create an…
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Chapter 4 Solutions
EBK JAVA PROGRAMMING
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - Prob. 17RQCh. 4 - Prob. 18RQCh. 4 - Prob. 19RQCh. 4 - Prob. 20RQCh. 4 - Prob. 1PECh. 4 - Prob. 2PECh. 4 - Prob. 3PECh. 4 - Prob. 4PECh. 4 - Prob. 5PECh. 4 - Prob. 6PECh. 4 - Prob. 7PECh. 4 - Prob. 8PECh. 4 - Prob. 9PECh. 4 - Prob. 10PECh. 4 - Prob. 11PECh. 4 - Prob. 1GZCh. 4 - Prob. 2GZ
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