Description: Create a class (without main) and a demo program which uses the class on a topic of your choice. Class: • Create a class which has at least 1 static variable and 3 instance variables. • All variables in this class should be private. • Overload the constructor. • Public gets and sets for each variable. • Create a print method that accepts an object parameter and simply prints out all items in the object. • Create a private method that is called by a public method. Demonstration/Main File: • Create a demo program that uses the sets and gets. (Create an object from your class. Then use sets/gets.) • Use each of the overloaded methods or constructors. • Call the print method sending it an object argument. • Call the public method that calls a private method show it going into the private via public.

Description: Create a class (without main) and a demo program which uses the class on a topic of your choice. Class: • Create a class which has at least 1 static variable and 3 instance variables. • All variables in this class should be private. • Overload the constructor. • Public gets and sets for each variable. • Create a print method that accepts an object parameter and simply prints out all items in the object. • Create a private method that is called by a public method. Demonstration/Main File: • Create a demo program that uses the sets and gets. (Create an object from your class. Then use sets/gets.) • Use each of the overloaded methods or constructors. • Call the print method sending it an object argument. • Call the public method that calls a private method show it going into the private via public.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 11PE

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Write a program named SalespersonDemo that instantiates objects using classes named Real EstateSalesperson and GirlScout. Demonstrate that each object can use a SalesSpeech() method appropriately. Also, use a MakeSale() method two or three times with each object, and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salespersons full nameâ€”the first and last names separated by a space. Then perform the following Create two child classes of Salesperson: Real EstateSalesperson and Girl Scout. The Real EstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The Girl Scout class includes a field to hold the number of boxes of cookies sold, which is initialized to 0. Include properties for every field. Create an interface named ISell able that contains two methods: SalesSpeech() and MakeSale(). In each Real EstateSalesperson and Girl Scout class, implement SalesSpeech() to display an appropriate one- or two-sentence sales speech that the objects of the class could use. In the Real Estatesalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the Real EstateSalespersons total value sold, and compute the total commission earned. In the Girl Scout class, implement the MakeSale() method to accept an integer representing the number of boxes of cookies sold and add it to the total field.
Create a class called Employee that contains two attributes: name and number. Next, write a class named Production Worker that is a subclass of the Employee class. The Production Worker class should add extra attributes called shift_number (an integer, either 1 or 2) and pay_rate. Write the appropriate accessor and mutator methods for each class. Once you have written the classes, write a program that creates an object of the Employee class and an object of the Production Worker class and prompts the user to enter data for each of the object's data attributes. Store the data in the object, then use the object's accessor methods to retrieve it and display it on the screen.
3- Create a class named Player with a default name as "player", a default level as 0, and a default class type of "fighter". Feel free to add any other attributes you wish! Create an instance method in the Player class called attack that takes another player as a parameter. This function should compare the level of the two players, and return whether the player won, lost, or tied. Finally create a loop that allows the user to input a name and a class type for two players; the level of both players should be determined at random (between 1 and 99). Print out the name and attributes of each player, and have the first player attack the second. Print whether the player won, lost, or tied. Ask if the user wants to try again. (Python code)
Urgent Quick Question Write an equals method for the StepsFitnessTracker class that tests whether the one object is equal to another object that is passed as an argument (Object otherObject). The Object superclass provides an equals method that tests if two object references are equal. Your new equals method should override the Object equals method, and should test the following: • Return true if the current (this) object, and otherObject are identical references (hint: you can use the == operator for this). • Returns false if otherObject is null. • Returns false if the current (this) object and otherObject have different classes (hint: you can use the getClass() method provided by the Object superclass, see the Java 8 API documentation for details). • Casts otherObject to a StepsFitnessTracker, and tests for equality of each instance variable1 , if the instance variables are the same the method should return true. Now write an equals method for the DistanceFitnessTracker and…
Urgent Quick Question Write an equals method for the StepsFitnessTracker class that tests whether the one object is equal to another object that is passed as an argument (Object otherObject). The Object superclass provides an equals method that tests if two object references are equal. Your new equals method should override the Object equals method, and should test the following: • Return true if the current (this) object, and otherObject are identical references (hint: you can use the == operator for this). • Returns false if otherObject is null. • Returns false if the current (this) object and otherObject have different classes (hint: you can use the getClass() method provided by the Object superclass, see the Java 8 API documentation for details). • Casts otherObject to a StepsFitnessTracker, and tests for equality of each instance variable1 , if the instance variables are the same the method should return true. 1 To test for equality of each instance variable, you might want to…
Define a new "Exam" class that manages the exam name (string) and its score (integer). For example, an exam can have - "Midterm Exam", 100 - "Final Exam", 50 The class must not provide the default constructor. It must require the exam name and score in order to initialize the Exam object. The class must provide only the following methods (no more and no less): - isPerfect method that returns true if the score is exactly 100 and false otherwise. - isPassing method that returns true if the score is equal or greater than 70 and false otherwise. - toString method must return all the exam information including the result of the exam as a string in the following format: EXAM(<name>) SCORE(<score>) RESULT(Pass/Fail) such asEXAM(Midterm Exam) SCORE(100) RESULT(Pass) EXAM(Final Exam) SCORE(50) RESULT(Fail) "Pass" means the score is greater or equal 70. "Fail" is whenever the score is below 70. - isGreater method that compares with another Exam object and return true if the score…
Create a class Course, which has one field: String courseName Create the constructor, accessor, and mutator for the class. Then, in the main method of this class, create an instance of the class with the name "CST1201". Write an equivalent while statement to replace the following for statement for (int i=2; i<100; i=i+2) { System.out.println(i); }
Create 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.
Part (1) Create a class called HOUSE that has these private instance variables: an owner “string”, an area “double” and a pricePerMeter “double”. The class has the following methods: - A constructor that takes owner, price and area. Theconstructor sets the class variables to these values and in case the owner is empty string, set its instance variable to “unknown”. - A mutator method (set) and an accessor method (get) for the owner variable. - A method getPrice that returns the total price of the house. The total price of the house is computed by multiplying the area by the price per meter. - A method print that prints the owner, area and price per meter. Part (2)Write a Java application that asks the user to enter the owner, area and price per meter of the house. Create an object from House class you defined in Part (1) and use it to display the house information and the total price of the house.
In Java Programming, 2 class needs a no-arg constructor and a constructor that initializes all fields with data (The ProductionWorker class constructor should receive data for the Employee class fields as well). I need help to create a method within the Employee and ProductionWorker classes called displayInfo. (displayInfo accepts no arguments and returns void). To display the data for each constructor, the demonstration class will call the subclass displayInfo method and it will call the superclass displayInfo method. User input is not required for the demonstration class. Have a class named "Employee" with the following fields: - Employee Name - Employee Number in format XXX-L, X = digit w/ range 0-9 & L = letter w/ range A-M. - Hire Date Then one or more constructors and the appropriate accessor and mutator methods for the class. Also, another class named "ProductionWorker" that extends "Employee" class. The "ProductionWorker" class should have the following fields to hold…
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. (c++ language)
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