write java codes Create a class named Calculate.Add 2 instance variables, Quantity and UnitPrice. UnitPrice can includeRupees and Cents.Add a no-argument constructor.Add getters and setters for the 2 instance variables.Add a user defined method named Total with no arguments. Total willcalculate and return Quantity*UnitPrice. If Quantity is greater than 10, give5% discount.Add a user defined method to display the total amount to the user.Create a Java Main application to create 2 objects based on the Calculateclass to test the program.

Name: write java codes Create a class named Calculate.Add 2 instance variabl
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Description: write java codes Create a class named Calculate.Add 2 instance variables, Quantity and UnitPrice. UnitPrice can includeRupees and Cents.Add a no-argument constructor.Add getters and setters for the 2 instance variables.Add a user defined method named

class Calculate{ private int quantity; private double unitprice; public Calculate(){} public int…

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Engineering

Computer Science

write java codes

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 2PE

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Create a class named Calculate2. Add 2 instance variables, Quantity and UnitPrice. UnitPrice can include Rupees andCents.3. Add a no-argument constructor and a parameterized constructor.4. Add getters and setters for the 2 instance variables5. Add a user defined method named Total with no arguments. Total will calculate andreturn Quantity*UnitPrice. If Quantity is greater than 10, give 5% discount.6. Add a user defined method to display the total amount to the user.7. Create a Java Main application to create 2 objects using both constructors based onthe Calculate class to test the program.
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); }
(The Rectangle class) Following the example of the Circle class in Section 8.2,design a class named Rectangle to represent a rectangle. The class contains:■ Two double data fields named width and height that specify the width andheight of the rectangle. The default values are 1 for both width and height.■ A no-arg constructor that creates a default rectangle.■ A constructor that creates a rectangle with the specified width and height.■ A method named getArea() that returns the area of this rectangle.■ A method named getPerimeter() that returns the perimeter.Draw the UML diagram for the class and then implement the class. Write a testprogram that creates two Rectangle objects—one with width 4 and height 40and the other with width 3.5 and height 35.9. Display the width, height, area,and perimeter of each rectangle in this order.
Create a PhoneListing class that uses the Name class for one of its instance variables. Remember the instance data in the Name class is private to the class and must be accessed through its methods.Add additional instance variables to the PhoneListing class for the phone number. The phone number should be broken down into three parts, area code, city code, and local code.Create all appropriate methods for the new class, including the following three methods: equals(PhoneListing):boolean, an equality of state method that returns true if the objects contain the same name and phone number. compareTo(PhoneListing):int, a comparison method that returns -1 if the calling PhoneListing object should precede the argument PhoneListing object, 1 if the calling PhoneListing object should come after the argument PhoneListing object, and a 0 if they are equal. Use last, first, middle, phone number as the ordering values. example:Adams, Alex, Henry, (609)473-2101 Adams, George, Henry, (509)373-1101…
Create a class named Lease with fields that hold an apartment tenant’s name, apartmentnumber, monthly rent amount, and term of the lease in months. Include a constructor thatinitializes the name to “XXX”, the apartment number to 0, the rent to 1000, and the term to12. Also include methods to get and set each of the fields. Include a nonstatic methodnamed addPetFee() that adds $10 to the monthly rent value and calls a static methodnamed explainPetPolicy() that explains the pet fee. Save the class asLeaseYourlastname.java. Replace ‘Yourlastname’ with your real last name.b) Create a class named TestLease whose main() method declares four Lease objects. Call agetData() method three times. Within the method, prompt a user for values for each fieldfor a Lease, and return a Lease object to the main() method where it is assigned to one ofmain()’s Lease objects. Do not prompt the user for values for the fourth Lease object, but letit continue to hold the default values. Then, in main(), pass…
The Rectangle class) Following the example of the Circle class in Section 9.2, design a class named Rectangle to represent a rectangle. The class contains: ■ Two double data fields named width and height that specify the width and height of the rectangle. The default values are 1 for both width and height. ■ A no-arg constructor that creates a default rectangle. ■ A constructor that creates a rectangle with the specified width and height. ■ A method named getArea() that returns the area of this rectangle. ■ A method named getPerimeter() that returns the perimeter.Draw the UML diagram for the class and then implement the class. Write a test program that creates two Rectangle objects—one with width 4 and height 40and the other with width 3.5 and height 35.9. Display the width, height, area, and perimeter of each rectangle in this order.
Create a class named Checkup with fields that hold a patient number, two blood pressure figures (systolic and diastolic), and two cholesterol figures (LDL and HDL). Include methods to get and set each of the fields. Include a method named computeRatio() that divides LDL cholesterol by HDL cholesterol and displays the result. Include an additional method named explainRatio() that explains that HDL is known as “good cholesterol” and that a ratio of 3.5 or lower is considered optimum. Save the class as CheckupType.cpp. Create a tester program named TestCheckup whose main() method declares four Checkup objects. Call a getData() method four times. Within the method, prompt a user for values for each field for a Checkup, and return a Checkup object to the main() method where it is assigned to one of main()’s Checkup objects. Then, in main(), pass each Checkup object in turn to a showValues()method that displays the data. Blood pressure values are usually displayed with a slash between the…
Create a class named Student that has fields for an ID number, numberof credit hours earned, and number of points earned. (For example,many schools compute grade point averages based on a scale of 4, so athree-credit-hour class in which a student earns an A is worth 12 points.)Include methods to assign values to all fields. A Student also has a field forgrade point average. Include a method to compute the grade point averagefield by dividing points by credit hours earned. Write methods to display thevalues in each Student field. Save this class as Student.java.b. Write a class named ShowStudent that instantiates a Student object from theclass you created and assign values to its fields. Compute the Student gradepoint average, and then display all the values associated with the Student.Save the application as ShowStudent.java.c. Create a constructor for the Student class you created. The constructor shouldinitialize each Student’s ID number to 9999, his or her points earned to 12,…
can you please answer number 4 for me 1. Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are Computer Science…
Create a method named getCircleDiameter that takes a radius of double type as the parameter. The method should return the diameter of a circle. To compute the diameter of a circle, multiply the radius by 2.Create a struct named Product where its fields are code, description, and price. Create a class named Person with an instance variable named full_name. Declare one (1) constructor without a parameter and initialize the variable with a default value.Create a class named Account with an instance variable named account_number. Make this class a member of the Accounts namespace.
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.
Create a class named Billing that includes three overloaded computeBill()methods for a photo book store.•• When computeBill() receives a single parameter, it represents the price ofone photo book ordered. Add 8% tax, and return the total due.•• When computeBill() receives two parameters, they represent the price ofa photo book and the quantity ordered. Multiply the two values, add 8% tax,and return the total due.•• When computeBill() receives three parameters, they represent the price of aphoto book, the quantity ordered, and a coupon value. Multiply the quantityand price, reduce the result by the coupon value, and then add 8% tax andreturn the total due.Write a main() method that tests all three overloaded methods. Save theapplication as Billing.java.