Absolute Java (6th Edition)
6th Edition
ISBN: 9780134041674
Author: Walter Savitch, Kenrick Mock
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4, Problem 4PP
Define a class called Journal that could be used to store an entry for a research paper that will be published. The class should have instance variables to store the author's name, title of the paper, and the date of submission using the Date class from this chapter. Add a constructor to the class that allows the user of the class to set all instance variables. Also add a method, displayDetails, that outputs all the instance variables, and another method called getSubmissionDetails that returns the title of the paper, with the first letter of each word capitalized. Test your class from the main method.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Modify the student class presented in this chapter as follows. Each student object should also contain the scores for three tests. Provide a constructor that sets all instance values based on parameter values. Overload the constructor such that each test score is assumed to be initially zero. Provide a method called setTestScore that accepts two parameters: the test number (1 through 3) and the score. Also provide a method called getTestScore that accepts the test number and returns the appropriate score Provide a method called average that computes and returns the average test score for this student. Modify the toString method such that the test scores and average are included in the description of the student. Modify the driver class main method to exercise the new Student methods. (Java)
Create a class Course to describe a course according to the following requirements: A course has three attributes: courseName, courseCode, fees.
Create a constructor without parameters to initialize all the instance variables to default values (0 for numbers and "" for a string).
Create a constructor to initialize all the attributes to specific values.
Add all setter and getter methods
Create a tester class with the main method. The tester class must be named using your first and last In this class performs the following:
Create a course object c1 using the default constructor.
Create a course object c2 with the following information: courseName =” object oriented programing”, courseCode = “CS230” , fees = a value from your choice.
Change the course fees of c2 to your age.
Print the course information of c2 using getter methods
I attached Typical run of the program
Creates a class Student with 3 attributes: name, id and level.
a. Add a constructor able to create a Student;
b. Add the methods getId and getName;
c. Add the method display able to display the attributes,
Chapter 4 Solutions
Absolute Java (6th Edition)
Ch. 4 - Write a method called makeItNewYears that could be...Ch. 4 - Write a method called yellIfNewYear that could be...Ch. 4 - Prob. 3STECh. 4 - Write a method called happyGreeting that could be...Ch. 4 - Prob. 5STECh. 4 - Write a method called advanceYear that could be...Ch. 4 - Prob. 7STECh. 4 - Prob. 8STECh. 4 - Consider the definition of the method monthString...Ch. 4 - The method writeOutput in Display 4.2 uses the...
Ch. 4 - Rewrite the definitions of the methods getDay and...Ch. 4 - Rewrite the method getMonth in Display 4.2 using...Ch. 4 - In the definition of precedes in Display 4.7, we...Ch. 4 - Prob. 14STECh. 4 - Following the style guidelines given in this book,...Ch. 4 - Prob. 16STECh. 4 - List all the accessor methods in the class...Ch. 4 - List all the mutator methods in the class...Ch. 4 - Write a better version of the method dateOK with...Ch. 4 - What is the signature of each of the following...Ch. 4 - Prob. 21STECh. 4 - Prob. 22STECh. 4 - Prob. 23STECh. 4 - If a class is named CoolClass, what names are...Ch. 4 - Suppose you have defined a class such as the...Ch. 4 - What is a no-argument constructor? Does every...Ch. 4 - What would be the last line in the dialogue in...Ch. 4 - What would be the last line in the dialogue in...Ch. 4 - Write a program that outputs a certain coded...Ch. 4 - Prob. 2PPCh. 4 - Define a class called Journal that could be used...Ch. 4 - Define a class called WordCount whose objects...Ch. 4 - Write a grading program for a class with the...Ch. 4 - Prob. 7PPCh. 4 - Redefine the class Date in Display 4.13 so that...Ch. 4 - Define a class whose objects are records on animal...Ch. 4 - Prob. 10PPCh. 4 - Prob. 11PPCh. 4 - This programming project extends Programming...Ch. 4 - Your Community Supported Agriculture (CSA) farm...Ch. 4 - A comma-separated values (CSV) file is a simple...Ch. 4 - Prob. 15PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Describe a method that can be used to gather a piece of data such as the users age.
Web Development and Design Foundations with HTML5 (8th Edition)
Practice Problem 7.2 (solution page 718) In this problem, let REF(x.i) DEF(x.k) denote that the linker will ass...
Computer Systems: A Programmer's Perspective (3rd Edition)
Describe the purpose of a database.
Database Concepts (7th Edition)
What information is contained in the state of a process?
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
The phrase "divide and conquer" means that all of the programmers on a team should be divided and work in isola...
Starting Out with Python (3rd Edition)
#inc1ude iostream #inc1ude string using namespace std; int main() { string s(5, 'a'); s.append(3, 'b'); s.inser...
Starting Out with C++: Early Objects
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Creates a class Student with 3 attributes: name, id and level. a. Add a constructor able to create a Student; b. Add the methods getId and getLevel; c. Add the method display able to display the attributes,arrow_forwardCreate a class called Date that includes three instance variables-a month (type int), a day (type int) and a year (type int). Provide a constructor that initializes the three instance variables and assumes that the values provided are correct. Provide a set and a get method for each instance variable. Provide a method displayDate that displays the month, day and year separated by forward slashes (/). Add a main method to the class that demonstrates class Date's capabilities.arrow_forwardFinish the TestPlane class that contains a main method that instantiates at least two Planes. Add instructions to instantiate your favorite plane and invoke each of the methods with a variety of parameter values to test each option within each method. To be able to test the functionality of each phase, you will add instructions to the main method in each phase.arrow_forward
- P1. In this question, you are provided a completed superclass – Shape (Do not make any changes to this class!). This class represents generic shapes and has several methods that you will have to override in the Circle and Rectangle subclasses, whose code skeletons are provided as well. You are required to complete these two classes so that they can correctly describe and calculate their attributes. For the Circle class, create the following: A private double instance variable m radius. A constructor that takes two parameters (in the order of color, radius). It should use the parameter for radius to set the m_radius instance variable and then explicitly call the parent class constructor using the super keyword and pass in the color parameter. A method that overrides the calcArea method of the superclass and calculates the area of the circle. The area of a circle can be calculated as 3.14 x r² (where r is the radius). A method that overrides the calcPerimeter method of the superclass and…arrow_forwardCreate a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four information as instance variables: a part number (type String), a part description (type String), a quantity of the item being purchased (type int) and a price per item (double). Your class should have a constructor that initializes the four instance variables. Provide a set and a get method for each instance variable. In addition, provide a method named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0.0. Write a tester class named InvoiceTest that demonstrates class Invoice’s capabilities by creating two invoices then changing and printing their characteristics.arrow_forwardAn artist's discography includes several albums. Each album includes several songs. We want to model the Discography, Album and Song classes as follows • a discography has a single artist attribute and a total_time method that returns the total minutes corresponding to the artist's entire discography • an album has a single name attribute and a total_time method that returns the total minutes for the songs on the album a song has two attributes: title and duration and a duration method that returns the duration in minutes of the song • we want to take advantage of the composite pattern so that the duration method delivers the total number of minutes of a song, album or the entire discography of the artist depending on the object in question a) Draw a UML class diagram showing the solution b) Write the Ruby code that implements itarrow_forward
- Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variable Part number(type String) Part description(type String) Quantity of the item being purchased (type int) Price per item (double). Your class should have a constructor that initializes the four instance variables. Provide a set and a get method for each instance variable. In addition, provide a method named getInvoice Amount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0.0. Write a test application named InvoiceTest that demonstrates class Invoice’s capabilities.arrow_forwardCreate an Object class and a test class to accomplish the following: Write a convertToMetric class that has the following field: standard - holds a double, standard length value in feet. The class should have the following methods: Constructor - that accepts a length in feet (as a double) and stores it in the standard field. setStandard - accepts a standard length in feet and stores it in standard. getStandard - returns the value of the standard field, as a length in feet, no conversion required. getMeters - returns the value of the standard field converted to meters. getCentimeters - returns the value of the standard field converted to centimeters A second class will be created and used to test the new object class. This, executable class, is to instantiate an object of 'convertToMetric' type. Then it will allow the user to use keyboard input to input a value for standard. That value will then be converted to meters and centimeters, and displayed. Make sure that your output (or…arrow_forwardIn this exercise, you are going to be working with 4 classes, a Book superclass with TextBook and Novel subclasses, and a BookTester class to run your program. For the Book, TextBook, and Novel class, you will create a constructor and all getters and setters. Be sure to follow standard naming conventions for your getters and setters! Additional information for each class is below. Book Class The Book class will have a title and author as instance variables and the constructor should follow this format: public Book(String title, String author) TextBook Class The TextBook class will have a subject and edition as instance variables and the constructor should follow this format: public TextBook(String title, String author, String subject, String edition) Novel Class The Novel class will have a genre and pages as instance variables and the constructor should follow this format: public Novel(String title, String author, String genre, int pages) BookTester In the tester class, you should…arrow_forward
- Create an Object class and a test class to accomplish the following: Write a convertToMetric class that has the following field: standard - holds a double, standard length value in feet. The class should have the following methods: Constructor - that accepts a length in feet (as a double) and stores it in the standard field. setStandard - accepts a standard length in feet and stores it in standard. getStandard - returns the value of the standard field, as a length in feet, no conversion required. getMeters - returns the value of the standard field converted to meters. getCentimeters - returns the value of the standard field converted to centimeters A second class will be created and used to test the new object class. This, executable class, is to instantiate an object of 'convertToMetric' type. Then it will allow the user to use keyboard input to input a value for standard. That value will then be converted to meters and centimeters, and displayed. Make sure that your output (or…arrow_forwardCreate a class Animal with a constructor that takes no parameters and has an instance variable: private int energy; When an animal is "born," it has one unit of energy. It has the methods: public void eat(int amountToEat) - which increases the amount of energy the animal has by amountToEat public void move(int amountToMove) - which decreases the energy the animal has by amountToMove. public int getEnergy() - which returns the amount of energy left Notice there is no setEnergy method. Energy is only changed by eating or moving. You should also create a subclass BetterAnimal which has a cap on the amount of energy an animal can have. The constructor takes a parameter that specifies a maximum for energy. You will need to save this in another instance variable. Override the eat and move methods In the eat method: If the amount the BetterAnimal eats would set its energy above the max, the energy level is only increased to the max. Also energy is only changed if the amount > 0 In…arrow_forwardCreate one more method in the Starship class: encounter(self, enemy_ship) This method takes in self, along with another Starship object. The method should simulate a battle between the two ships. How the method is implemented is almost entirely up to you. You could take in user input for each crew member, or have them each act randomly from the available options, or specify exactly what a given crew member of each type should do. The only requirements are as follows: Each crew member on each ship should get at least one “turn” before the battle is complete. If the crew member is Injured on their turn, they should do nothing. You may assume that each ship will have at least one crew member uninjured when the encounter begins. You shouldn’t make any assumptions about how many crew members there will be on a given ship, where they will start, or about which subclasses will be present - it’s possible that you’ll have test cases including a ship with no captain, or no doctor.…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 Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable 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
6 Stages of UI Design; Author: DesignerUp;https://www.youtube.com/watch?v=_6Tl2_eM0DE;License: Standard Youtube License