
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question

Transcribed Image Text:For the Employee class, create the following:
A private String instance variable m name.
A private string instance variable m department.
A constructor that takes two parameters (in the order of name, department) and sets the
instance variables.
A getter method for m name and a getter method for m department.
An abstract string method named getPaycheck that does not take any parameter.
Expert Solution

arrow_forward
Step 1
Screenshots of the code:
1.
Trending nowThis is a popular solution!
Step by stepSolved in 10 steps with 9 images

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
- int x //x coord of the center -int y // y coord of the center -int radius -static int count // static variable to keep count of number of circles created + Circle() //default constructor that sets origin to (0,0) and radius to 1 +Circle(int x, int y, int radius) // regular constructor +getX(): int +getY(): int +getRadius(): int +setX(int newX: void +setY(int newY): void +setRadius(int newRadius):void +getArea(): double // returns the area using formula pi*r^2 +getCircumference // returns the circumference using the formula 2*pi*r +toString(): String // return the circle as a string in the form (x,y) : radius +getDistance(Circle other): double // *** returns the distance between the center of this circle and the other circle +moveTo(int newX,int newY):void // *** move the center of the circle to the new coordinates +intersects(Circle other): bool //*** returns true if the center of the other circle lies inside this circle else returns false +resize(double…arrow_forwardConstruct a Time class containing integer data members seconds, minutes, and hours. Have the class contain two constructors: The first should be a default constructor having the prototype Time(int, int, int), which uses default values of 0 for each data member. The second constructor should accept a long integer representing a total number of seconds and disassemble the long integer into hours, minutes, and seconds. The final member method should display the class data members.arrow_forwardpublic class Cat { private int age; public Cat (int a) { age = а; } public int getAge() { return a; } } Which of the following best explains why the getAge method will NOT work as intended? The instance variable age should be returned instead of a, which is local to the constructor. The variable age is not declared inside the getAge method. The getAge method should be declared as private. The getAge method should have at least one parameter.arrow_forward
- 1. Write a class named Coin. The Coin class should have the following field: • A String named sideUp. The sideUp field will hold either "heads" or "tails" indicating the side of the coin that is facing up. The Coin class should have the following methods: • A no-arg constructor that randomly determines the side of the coin that is facing up ("heads" or "tails") and initializes the sideUp field accordingly. • A void method named toss that simulates the tossing of the coin. When the toss method is called, it randomly determines the side of the coin that is facing up ("heads" or "tails") and sets the sideUp field accordingly. • A method named getSide Up that returns the value of the side Up field. Write a program that demonstrates the Coin class. The program should create an instance of the class and display the side that is initially facing up. Then, use a loop to toss the coin 20 times. Each time the coin is tossed, display the side that is facing up. The program should keep count of…arrow_forwardIn C++ create a program that acts like a bank account. It asks the user whether to deposit or withdraw. That has 3 classes. The first class must be a generic class that holds basic info deposit, withdraw, calculate monthly interest rate, and a monthly service fee.The second class must be a savings account class that if the savings account falls below $25 it becomes inactive. The final class must be a checking account if someone withdraws more than what they have a service charge of $15 is added and go into a negative balance. The output should display the basic information how much someone deposited or withdrew and their monthly interest rate.arrow_forwardThe Essay class has a default constructor, a constructor with two parameters, and a constructor with three parameters. Declare the following objects: essay1 with no arguments essay2 with essayTitle and essayAuthor as arguments essay3 with essayTitle, essayAuthor, and essayYear as arguments Ex: If the input is Painting Cole 1919, then the output is: Essay: Undefined, Unspecified, 0 Essay: Painting, Cole, 0 Essay: Painting, Cole, 1919 Archive.java public class Archive { publicstaticvoidmain(String[] args) { Scannerscnr=newScanner(System.in); StringessayTitle; StringessayAuthor; intessayYear; essayTitle=scnr.next(); essayAuthor=scnr.next(); essayYear=scnr.nextInt(); /* Your code goes here */ essay1.print(); essay2.print(); essay3.print(); } } Essay.java public class Essay { private String title; private String author; private int year; public Essay() { // Default constructor title = "Undefined"; author = "Unspecified"; year = 0; }…arrow_forward
- Given a class Circle as below: class Circle{ private int radius; double center_x; double center_y; Circle(){ .//some code here } Circle(double x, double y, int radius){ .//some code here } int getRadius(){ return radius; } }; Which of the following line is incorrect? Circle myCircle = new Circle(10,20, 5); I/~~~~~line A System.out.println("radius is: "+myCircle.radius); //--~~~line B Circle yourCircle = new Circle(); //-~~~~line C System.out.println("radius is: "+yourCircle.getRadius()); //---~~line Darrow_forward1. Create a properly encapsulated class named Person that has the following: A String instance variable called name. A constructor that takes a String parameter and sets the instance variable. A properly named getter for the instance variable. A correctly overrided equals method which returns true if the name instance variable of the parameter and the reference variable calling the method are equal. (Do not forget the null and class type checks!) Compile your Person class. 2. Create a properly encapsulated class named Employee that inherits from Person and has the following: ● ● ● A String instance variable called office (e.g. "LWH 2222"). A String instance variable called hourlywage (e.g. "$45.15"). A constructor that takes three Strings as parameters for name, office, and hourlyWage and sets the instance variables of both the parent class and the Employee class. An overridden toString method that returns the concatenation of name and hourlyWage instance variables (separated by a…arrow_forward1. Design a new Triangle class that extends the abstract GeometricObject class. Write a test program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the color and filled properties using the input. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not.arrow_forward
- Write a class definition line and a one line docstring for the class Dog. Write an __init__ method for the class Dog that gives each dog its own name and breed. Test this on a successful creation of a Dog object.>>> import dog>>> sugar = dog.Dog('Sugar', 'border collie')>>> sugar.name'Sugar'>>> sugar.breed'border collie' Add a data attribute tricks of type list to each Dog instance and initialize it in __init__ to the empty list. The user does not have to supply a list of tricks when constructing a Dog instance. Make sure that you test this successfully.>>> sugar.tricks[] Write a method teach as part of the class Dog. The method teach should add a passed string parameter to tricks and print a message that the dog knows the trick.>>> sugar.teach('frisbee')Sugar knows frisbeearrow_forwardThe class provided represents a item. Information about a item includes the name of the item and the count of items in inventory (inventory count). When ordering items they are ordered in descending order by the inventory count. If items have the same inventory count then they are ordered in ascending alphabetical order by their name (a-z). Here is an example set of items: 7 Camera 5 Bicycle 5 Lego 5 Robot 3 Tricycle The Item class is missing a required method. Write the missing method in the space provided below. public class Item implements Comparable { private String name; private int count; public Item (String nameIn, int count In) { name name In; count countIn; }arrow_forward
arrow_back_ios
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