Create a class named Commission that includes three variables: a double sales figure, a double commission rate, and an int commission rate. Create two overloaded methods named computeCommission(). The first method takes two double parameters representing sales and rate, multiplies them, and then displays the results. The second method takes two parameters: a double sales figure and an integer commission rate. This method must divide the commission rate figure by 100.0 before multiplying by the sales figure and displaying the commission. Supply appropriate values for the variables, and write a main() method Save the file that tests each overloaded method. as Commission.java.
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- 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.Create a class with the name 'QuadraticSolver'.The two roots of a quadratic equation of the form ??2 + ?? + ? = 0 can be obtained using the quadratic equation formula ?2 − 4?? is called the discriminant of the quadratic equation. If it is positive, the equation has two real roots. If it is zero, the equation has one root. If it is negative, the equation has no real roots. In the QuadraticSolver main method, write a program that prompts the user to enter values for a, b, and c and displays the result based on the discriminant. If the discriminant is positive, display the two roots. If the discriminant is 0, display one root. Otherwise, display the imaginary roots. Note that you can use Math.pow(x, 0.5) to compute √?. Here are three separate sample runs: 1.0, 3, 1The equation has two roots: -0.38 and -2.62 1, 2.0, 1The equation has one root: -1.00 1, -4, 8The equation has two imaginary roots: 2.00 + 2.00i and 2.00 - 2.00iIn Public Class, create a static void method called Info_AHW that takes 3 parameters - an int and two double. When the method is called, we pass along the age (A), then the height (H), and then the weight (W), which is used inside the method to print the person's age, then the height and then the weight. NOTE: The Print out must follow the output below Afterward, in the main method, get the User input using the Scanner class to get the three input - the int age, the double height and the double weight. Then, call your Info_AHW method and pass your arguments (age, height, weight) into that method. Hint: When getting the int input, use -> sc.nextInt(); When getting the double input, use -> nextDouble(); Input: 5 65.5 70.2 Output: Your age is 5 ; your height is 65.5 ; and your weight is 70.2 Note: -There is a single space between every word and semicolon -There is no space at the end
- I need help! Modify the class named FormLetterWriter that includes two overloaded methods named displaySalutation(). The first method takes one String parameter that represents a customer’s last name, and it displays the salutation Dear Mr. or Ms. followed by the last name. The second method accepts two String parameters that represent a first and last name, and it displays the greeting Dear followed by the first name, a space, and the last name. After each salutation, display the rest of a short business letter using the displayLetter method: Thank you for your recent order. public class FormLetterWriter {public static void main(String[] args) {displaySalutation("Kelly");displayLetter();displaySalutation("Christy", "Johnson");displayLetter();} public static void displaySalutation(String lastName) {// Write your code here} public static void displaySalutation(String firstName, String lastName) {// Write your code here}public static void displayLetter() {// Write your code here}}Modify the program below and add a public method called isZero() to the Fraction class. This method will determine if a Fraction represents a zero fraction. A zero fraction has a numerator == 0, no matter what the denominator is. Your isZero() method should return a Boolean resultindicating a zero fraction or otherwise. The method will be used by the client class to test whether the ‘calling fraction’ is equal to the number zero. Modify the program so that it now loops until a fraction representing zero is entered. //Import the essential package import java.util.ArrayList; import java.util.Scanner; //Define the class Fraction class Fraction { private int n, d; public Fraction() { //Initialize the values this.n = this.d = 0; } public Fraction(int n, int d) { //Initialize the variables this.n = n; this.d = d; } //Define the getter function getNum() that returns the numerator public int getNum() {…I need to write a jave program to keep track of a team sport. Write a class, Team.java, that has the following: * two private instance variables: a String named color and an int named score. * a default constructor with no parameters that initializes color to "Red" and score to zero. * a constructor that takes two parameters (one for each instance variable) and sets the values of the instance variables. * a public getter and setter method for each instance variable. * a toString method that returns the color and score in the following format: "Red Team with 0 points."
- Create a class named Pay that includes five double variables that hold hours worked, rate of pay per hour, withholding rate, gross pay, and net pay. Create three overloaded computeNetPay() methods. When computeNetPay() receives values for hours, pay rate, and withholding rate, it computes the gross pay and reduces it by the appropriate withholding amount to produce the net pay. (Gross pay is computed as hours worked multiplied by pay per hour.) When computeNetPay() receives two parameters, they represent the hours and pay rate, and the withholding rate is assumed to be 15%. When computeNetPay() receives one parameter, it represents the number of hours worked, the withholding rate is assumed to be 15%, and the hourly rate is assumed to be 5.85. Write a main() method that tests all three overloaded methods. Save the application as Pay.java.Following the example of the Rectangle class of Chapter 9 Exercise 1, design a class named Cuboid to represent a cuboid. The class contains: Three data fields named length, width, and height. A constructor that creates a cuboid with the specified length, width, and height. A method named getVolume() that returns the volume of this cuboid. Then, please create an object mycuboid = Cuboid (2, 3, 4), and invoke getVolume to print the volume of mycuboid.in java, Write a class that represents a student. Every student has a name, an id number, a number of credits, and a number of grade points. Also, include in your class a default constructor, a second constructor with all parameters, an accessor method (getter) for the student name, and a method called gpa that will calculate and return the student’s grade point average. (Hint: gpa = points/credits) Using the class that you just wrote, answer the following questions. Write code that will declare and initialize an object using the default constructor. Write code that will declare and initialize an object using the overloaded constructor. Write code that will retrieve and print the student’s gpa from #2.
- 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 class called “Rectangle” with properties of length and width, andincludes method to calculate the area and perimeter of the rectangle. Create aDriver class and instantiate 2 Rectangle objects that return the area andperimeter for each. Please feel free to set the length and width to values ofyour choice. for JAVAIn Java, Use the Phone class as a baseline, and write a method isUSA. It should return true if the country code is 1 and false otherwise. Also expanding the Phone class, write a method that determines the location of an area code. It should return the name of the area code's city. For example, if cc = 1 and area code = 510 East Bay Area, 650 SF Peninsula, 415 San Francisco, 408 South Bay Area. For this assignment, use literal strings as return values.