Create a constructor for the Student class you created. The constructor should initialize each Student's ID number to 9999, his or her points earned to 15, and credit hours to 3 (resulting in a grade point average of 3.0). Write a program that demonstrates that the constructor works by instantiating an object and displaying the initial application values. the Save ShowStudent2.java. as
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- Using the dialog boxes in the JOptionPane class, write a program that calculates and prints themonthly paycheck for an employee. Use the class name “LastnameClasscodeFinal1”. The netpay is calculated after taking the following deductions:a) Federal Income Tax: 15%b) State Tax: 3.5%c) Social Security Tax: 5.75%d) Medicare/Medicaid Tax: 2.75%e) Pension Plan” 5%f) Health Insurance: $ 75.00Your program should prompt the user to input the gross amount and the employee name. Formatthe output to have two decimal places. A sample output follows: Juan Dela CruzGross Amount: $ 3575.00Federal Tax: $ 536.25State Tax: $ 125.13Social Security Tax: $ 205.56Medicare/Medicaid Tax: $ 98.31Pension Plan: $ 178.75Health Insurance: $ 75.00Net Pay: $ 2356.00Using the dialog boxes in the JOptionPane class, write a program that calculates and prints themonthly paycheck for an employee. Use the class name “LastnameClasscodeFinal1”. The netpay is calculated after taking the following deductions:a) Federal Income Tax: 15%b) State Tax: 3.5%c) Social Security Tax: 5.75%d) Medicare/Medicaid Tax: 2.75%e) Pension Plan” 5%f) Health Insurance: $ 75.00Your program should prompt the user to input the gross amount and the employee name. Formatthe output to have two decimal places. A sample output follows:Using the dialog boxes in the JOptionPane class, write a program that calculates and prints themonthly paycheck for an employee. Use the class name “LastnameClasscodeFinal1”. The netpay is calculated after taking the following deductions:a) Federal Income Tax: 15%b) State Tax: 3.5%c) Social Security Tax: 5.75%d) Medicare/Medicaid Tax: 2.75%e) Pension Plan” 5%f) Health Insurance: $ 75.00
- Java programming please Support computing sales tax in the CashRegister class. The tax rate should be supplied when constructing a CashRegister object. Add recordTaxablePurchase and getTotalTax methods. (Amounts added with recordPurchase are not taxable.) The giveChange method should correctly reflect the sales tax that is charged on taxable items. Please add the method to the CashRegisterTester. The input and output are also provided below. CashRegister class: import java.util.Scanner; public class CashRegister { private double purchase; private double payment; /** Constructs a cash register with no money in it. */ public CashRegister() { purchase = 0; payment = 0; } /** Records the sale of an item. @param amount the price of the item */ public void recordPurchase(double amount) { purchase = purchase + amount; } /** Processes a payment received from the customer. @param amount the amount of the payment */…Create a second test class called TicketTest to test that a Ticket object isconstructed correctly when provided reasonable input.a. Write a test method that calls the following constructor with valid arguments:Ticket(Passenger p, Seat s, double price)Before you create the Ticket object:i. Use the wizard to generate the TicketTest classii. Add a test method to the class.iii. In the test method, create a Passenger object. The default constructorof the Passenger class generates a valid name “T. B. A.”, so either ofthe following statements instantiate a Passenger:Passenger passenger = new Passenger();Or:Passenger passenger = new Passenger(new PassengerName(“Mary”, “I”, “Worth”));iv. Create a Seat object.The Seat class has no explicit constructor so you must use the implicitdefault constructor and then call seat.setRow(int i) andseat.setLetter(char c) to specify a specific seat.Unit Testing with JUnitv. Create the ticket object, providing the passenger object, seat object and the price as a…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! python program 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.
- 1- Write a Java class that models a Vehicle. There are three types of vehicles (Sedan, SUV, Truck). Every vehicle object should also contain an instance variable that can be used to store the time at which the vehicle has entered the car parking building (Hint: use the java.util.Date class to represent the time). In addition to the constructors, you should provide the following methods: public double getDuration(Date exitTime) this method will return the duration (in minutes) from the time the vehicle entered the parking until the given exitTime. public String getType() this method will return either Sedan or SUV or Truck based on the vehicle type. public void setType(String type) this method will set the type of the vehicle to either Sedan or SUV or Truck. public void setEntryTime(Date entryTime) this method will set the time at which the vehicle has entered the parking.Code In Java NetBeans Q: Create an Inventory system program which has the following classes: A) . A Date class that includes three instance variables, a month, a day, and an year. Provide a constructor that initializes the three instance variables, validating the values. Provide a toString method that displays the day, month, year separated by the forward slash(/).Write code for an Invoice class for a car sale. Printing an object of the Invoice should print thedetails about the seller, the buyer, the dealer, the date of transaction, the car being sold, the purchase andselling price, the commission earned by the dealer, sales tax, and the total price of the car (calculated giventhe details in Question 3 part 3). A generation of the invoice object should set the isSold variable of the car class to true. You do not need to write code for any other classes import java.io.File;import java.io.FileWriter;import java.io.IOException; abstract class Car { // class car String[] name; int reg_number, eng_number, chassis_num, status; String[] city, model, color, date_reg, date_arr, type; float price; abstract float calculate(float price);} class Dealer extends Car { // inherits from Car String[] deal_name, deal_id, deal_add, deal_pno; float dealer_com; float calculate(float price) { dealer_com = (float) (0.01 * price + 0.01 * price); // adding extra 2%…
- Write code for an Invoice class for a car sale. Printing an object of the Invoice should print thedetails about the seller, the buyer, the dealer, the date of transaction, the car being sold, the purchase andselling price, the commission earned by the dealer, sales tax, and the total price of the car (calculated giventhe details in Question 3 part 3). A generation of the invoice object should set the isSold variable of the carclass to true. You do not need to write code for any other classesQuestion 3 part 3 is given Below[Question 3:1. Explain the importance of method signature in method overriding. 2. The system might want to use an overridden method (function) with a common signature across the relevant classes Seller, Dealer, Buyer, and distinct classes Car and Invoice for maintaining the finances. Details of the classes can be seen in Table 1. Explain with proper syntax as to how this can be achieved using object-oriented programming.3. Write Java code (for the methods only) that…Create a constructor for the Student class you created. The constructor should initialize each Student’s ID number to 9999, his or her points earned to 12, and credit hours to 3 (resulting in a grade point average of 4.0). Write a program that demonstrates that the constructor works by instantiating an object and displaying the initial values. Save the application as ShowStudent2.java.a. Write a FractionDemo program that instantiates several Fraction objects and demonstrates that their methods work correctly. Create a Fraction class with fields that hold a whole number, a numerator, and a denominator. In addition: Create properties for each field. The set access or for the denominator should not allow a 0 value; the value defaults to 1. Add three constructors. One takes three parameters for a whole number, numerator, and denominator. Another accepts two parameters for the numerator and denominator; when this constructor is used, the whole number value is 0. The last constructor is parameterless; it sets the whole number and numerator to 0 and the denominator to 1. (After construction, Fractions do not have to be reduced to proper form. For example, even though 3/9 could be reduced to 1/3, your constructors do not have to perform this task.) Add a Reduce() method that reduces a Fraction if it is in improper form. For example, 2/4 should be reduced to 1/2. Add an operator+() method that adds two Fractions. To add two fractions, first eliminate any whole number part of the value. For example, 2 1/4 becomes 9/4 and 1 3/5 becomes 8/5. Find a common denominator and convert the fractions to it. For example, when adding 9/4 and 8/5, you can convert them to 45/20 and 32/20. Then you can add the numerators, giving 77/20. Finally, call the Reduce() method to reduce the result, restoring any whole number value so the fractional part of the number is less than 1. For example, 77/20 becomes 3 17/20. Include a function that returns a string that contains a Fraction in the usual display format—the whole number, a space, the numerator, a slash (D, and a denominator. When the whole number is 0, just the Fraction part of the value should be displayed (for example, 1/2 instead of 0 1/2). If the numerator is 0, just the whole number should be displayed (for example, 2 instead of 2 0/3). b. Add an operator*() method to the Fraction class created in Exercise 11a so that it correctly multiplies two Fractions. The result should be in proper, reduced format. Demonstrate that the method works correctly in a program named FractionDemo2. c. Write a program named FractionDem03 that includes an array of four Fractions. Prompt the user for values for each. Display every possible combination of addition results and every possible combination of multiplication results for each Fraction pair (that is, each type will have 16 results).