Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 6, Problem 2P
Program Plan Intro
Display the person details
Program plan:
Person.java:
- • Include necessary header files.
- • Define the class “Person”.
- ○ Declare the necessary variables.
- ○ Define the constructor “Person()” with two parameters.
- ○ Define the constructor “Person()” with a “newName” parameter.
- ○ Define the constructor “Person()” with a “newAge” parameter.
- ○ Define the default constructor.
- ○ Define the method “readInput()” to get the input from the keyboard.
- ○ Define the method “writeOutput()” to print the result on the screen.
- ○ Define the method “set()” to set the name and age of a person.
- ○ Define the method “setName()” to set the name of a person.
- ○ Define the method “setAge()” to set the age of a person.
- ○ Define the method “getName()” to get the name of a person.
- ○ Define the method “getAge()” to get the age of a person.
- ○ Define the necessary test methods to test the true and false cases.
PersonTest.java:
- • Define the class “PersonTest”.
- • Define the “main()” method.
- • Create necessary object for the class “Person”.
- • Use necessary test cases to test all methods and four constructors and at least one true and one false case for each of the test methods.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What two characteristics distinguish the constructor from the class's methods, in your opinion?
I need to override the toString() method with my own, however I am not sure how to reference back to the parameters for the constructor of the class. I've included my code below. I even tried giving the class instance variables of the same name, however the error said the code was "unreachable." What am I doing wrong?
/**
* Superclass for the different types of appointments.
* TODO: Appointments have a description & date MM/DD/YYYY
* TODO: method: occursOn(int year, int month, int day);
* 4 method constructor: year, month, day, description
*/
public class Appointment {
/**
* the constructor method for an Appointment.
*
* @param year - the year of the appointment.
* @param month - the month of the appointment.
* @param date - the day of the appointment.
* @param description - a short description of the appointment.
*/
publicAppointment(intyear, intmonth, intdate, Stringdescription){
}
/**
* Method to return a string representation of the appointment.
* Will be inherited by the…
Which two characteristics of the constructor set it out visually from the other methods of the class, and what are those characteristics?
Chapter 6 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 6.1 - If a class is named Student, what name can you use...Ch. 6.1 - When defining a constructor, what do you specify...Ch. 6.1 - What is a default constructor?Ch. 6.1 - Does every class in Java automatically have a...Ch. 6.1 - In the program PetDemo shown in Listing 6 2, you...Ch. 6.2 - Prob. 6STQCh. 6.2 - Can a class contain both instance variables and...Ch. 6.2 - Can you reference a static variable by name within...Ch. 6.2 - Can you reference an instance variable by name...Ch. 6.2 - Can you reference a static variable by name within...
Ch. 6.2 - Can you reference an instance variable by name...Ch. 6.2 - Is the following valid, given the class...Ch. 6.2 - Prob. 13STQCh. 6.2 - Prob. 14STQCh. 6.2 - Prob. 15STQCh. 6.2 - Is the following valid, given the class...Ch. 6.2 - What values are returned by each of the following?...Ch. 6.2 - Suppose that speed is a variable of type double...Ch. 6.2 - Repeat the previous question, but instead assign...Ch. 6.2 - Suppose that nl is of type int and n2 is of type...Ch. 6.2 - Define a class CircleCalculator that hat only two...Ch. 6.2 - Which of the following statements are legal?...Ch. 6.2 - Write a Java expression to convert the number in...Ch. 6.2 - Consider the variable 5 of type String that...Ch. 6.2 - Repeat the previous question, but accommodate a...Ch. 6.2 - Write Java code to display the largest and...Ch. 6.3 - Prob. 27STQCh. 6.3 - Consider the variable allCents in the method...Ch. 6.3 - What is wrong with a program that starts as...Ch. 6.3 - Prob. 30STQCh. 6.3 - In your definition of the class OutputFormat. In...Ch. 6.4 - Prob. 32STQCh. 6.4 - Prob. 33STQCh. 6.4 - Prob. 34STQCh. 6.4 - Consider the class Species in Listing 5.19 of...Ch. 6.4 - Repeat the previous question for a method...Ch. 6.4 - Still considering the class Species in Listing...Ch. 6.4 - Rewrite the method add in Listing 6.16 so that it...Ch. 6.4 - In Listing 6.16, the set method that has a String...Ch. 6.5 - Give the definitions of three accessor methods...Ch. 6.6 - If cardSuit is an instance of Suit and is assigned...Ch. 6.7 - Suppose you want to use classes in the package...Ch. 6.7 - Prob. 43STQCh. 6.7 - Can a package have any name you might want, or are...Ch. 6.7 - On your system, place the class Pet (Listing 6.1)...Ch. 6.8 - The previous section showed you how to change the...Ch. 6 - Prob. 1ECh. 6 - Prob. 2ECh. 6 - Write a default constructor and a second...Ch. 6 - Write a constructor for the class...Ch. 6 - Consider a class characteristic that will be used...Ch. 6 - Create a class RoomOccupancy that can be used to...Ch. 6 - Write a program that tests the class RoomOccupancy...Ch. 6 - Sometimes we would like a class that has just a...Ch. 6 - Create a program that tests the class Merlin...Ch. 6 - In the previous chapter, Self-Test Question 16...Ch. 6 - Create a class Android whose objects have unique...Ch. 6 - Prob. 12ECh. 6 - Modify the definition of the class Species in...Ch. 6 - Prob. 2PCh. 6 - Using the class Pet from Listing 6.1, write a...Ch. 6 - Do Practice Program 4 from Chapter 5 except define...Ch. 6 - The following class displays a disclaimer every...Ch. 6 - Do Practice Program 5 from Chapter 5 but add a...Ch. 6 - We can improve the Beer class from the previous...Ch. 6 - Define a utility class for displaying values of...Ch. 6 - Write a new class TruncatedDollarFormat that is...Ch. 6 - Complete and fully test the class Time that...Ch. 6 - Complete and fully test the class Characteristic...Ch. 6 - Write a Java enumeration LetterGrade that...Ch. 6 - Complete and fully test the class Per n that...Ch. 6 - Write a Temperature class that represents...Ch. 6 - Repeat Programming Project 8 of the previous...Ch. 6 - Write and fully test a class that represents...Ch. 6 - Write a program that will record the votes for one...Ch. 6 - Repeat Programming Project 10 from Chapter 5, but...Ch. 6 - Create a JavaFX application that displays a button...
Knowledge Booster
Similar questions
- can you help me how to test this Part 1: Test Program Write a program to test all test cases outlined in the test plan. For each method (unit) being tested, ensure your client program provides output clearly describing the method being tested along with the expected and actual result. When testing constructors, verify the results by calling an accessor method of the class. When testing mutators, use the accessor method to verify the state change. When a test fails (actual does not match the expected), correct the method code, then re-test. Keep in mind that a poorly written test can produce inaccurate test results. If a test fails, ensure you have written the test correctly before modifying your unit code. Output Requirement For each method (unit), output the method signature. For each test, output the following: Test number Outcome description Expected result Actual result Leave one blank line between each test. Sample StudentGrades(int) Test #1 - Initialize grades array…arrow_forwardPLEASE ENSURE TO USE THE FRAMEWORK PROVIDED IN THE IMAGES, AND THAT IT WORKS WITH THE TESTER CLASS. PLEASE EDIT BOTH THE TEST CLASS, DO NOT EDIT THE MAIN METHOD. Write a BankAccountTester class whose main method constructs a bank account, deposits $1,000, withdraws $500, withdraws another $400, and then prints the remaining balance. Also print the expected result.arrow_forwarda.) Write the definition of the default constructor of YClass so that the instance variables of YClasa are initialized to 0. b.) Write the definition of the default constructor of XClass so that the instance variable of XClass are initialized to 0. c.) Write the definition of the method two of YClass so that rhe instance variable a is initialized to the value of the first parameter of two, and the instance variable b is initialized to the value of the second parameter of two.arrow_forward
- Follow the usual approach: read the documentation carefully, read the first test class, write the method being tested.: JAVA public EmployeeUtilities() \\constructor\\ Constructor does nothing, i.e. public EmployeeUtilities() {} ------------------ getEmployeeWithMostHours public Employee getEmployeeWithMostHours(Employee[] emps) Returns the Employee object with the most hours worked in a week over all the Employees in an input array. You can assume the array is full, i.e. there are no null elements. Parameters: emps - An array of Employee objects Returns: The Employee object with the most hours worked in a week over all the Employees in an input array. ------------------------ getHoursArray public double[] getHoursArray(Employee[] emps) Returns an array of just the total hours for each Employee in the input array. For example, if the input array has three employees with total hours: 40, 50, 20, then a double array will be returned with these values: [40,50,20] Parameters: emps - An…arrow_forwardFirst, a quick definition of the method should be given before moving on to the three components that make it up.arrow_forwardQ# Which of the following might have only method signatures? Group of answer choices 1. An interface 2. An abstract class and a concrete class 3. An abstract class 4. An interface and an abstract class 5. None of these, they all require the implementation. 6. A concrete classarrow_forward
- Write a Java Program, Create a class with a method that prints "This is parent class" and its subclass with another method that prints "This is child class". Now, create an object for each of the class and call 1 - method of parent class by object of parent class 2 - method of child class by object of child class 3 - method of parent class by object of child class In the above example, declare the method of the parent class as private and then repeat the first two operations (You will get error in the third).arrow_forwardI am trying to make a J-Unit test for a class and constructor called GameInfo class.I want to make a TestConstructor class with a method named testNameShouldNotBeNullInside testNameShouldNotBeNull, I want to write an assertThrows. In the body of the () -> { } part, call the GameInfo constructor with null for the name.GameInfo.java:arrow_forwardIN C++ Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon or liters/km—pick one) and a certain amount of fuel in the gas tank. The efficiency is specified in the constructor, and the initial fuel level is 0. Provide another parameterized constructor which takes both efficiency and fuel as parameters. Also supply methods getGasInTank, returning the current amount of gasoline in the fuel tank. getEfficiency() return the efficiency of car. setGasInTank(double fuel), to add gasoline to the fuel tank. setEfficiency(double efficiency) Supply a method Drive () that simulates driving the car for a certain distance, reducing the amount of gasoline in the fuel tank according to its efficiency. Sample usage: Car myHybrid (50); // 50 miles per gallon myHybrid.addGas(20); // Tank 20 gallons myHybrid.Drive(100); // Drive 100 miles double gasLeft = myHybrid.getGasInTank(); // Get gas remaining in tank Supply a main method that tests…arrow_forward
- Find out the key distinctions between a constructor and a method.arrow_forwardWhat is not the use of “this” keyword in Java? a) Referring to the instance variable when a local variable has the same name b) Passing itself to the method of the same class c) Passing itself to another method d) Calling another constructor in constructor chainingarrow_forwardWhat are the two characteristics of the constructor that make it seem quite different from the class's methods?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education