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- a. Write a class that declares a user’s hourly rate of pay and the number of hours worked. Display the user’s gross pay, the withholding tax (15% of gross pay), and the net pay (gross pay – withholding). Save the class as Payroll.java. JAVA write grading program for a class with the following grading policies. thers a total of 2 quizzes, each graded on the basis of 10 points. theeres is 1 midterm exam and one final exam, each graded on the basis of 100 points. final exam counts for 50% of the grade, the midterm counts for 25%, and the 2 quizzes together count for a total of 25%. (Do not forget to normalize the quiz scores.) letter grade will be given based on the following criterion: 90 – 100 A 80 – 89 B 70 – 79 C 60 – 69 D 0 – 59 E program will read student’s scores from a txf file, save them in an arrayor arrays), process the arrays), print the student’s record, which consists of the name, 2 quiz and 2 exam scores as well along with students avg numscore for the course and final letter rade. please noteAll the scores are integers and a student name consists of no more than 10 characters. justify output fileGiven the code below, which of the following C++ statements is a valid way to instantiate a new instance of the Motor class? class Motor { public: int cams; double ccu; Motor() { ccu = 350.05; } Motor(int a, double b) { } } Motor hemi; Motor Motor; {Motor hemi(455, 203.25, 0); Motor hemi(0);
- Consider the code and output below. Is Car more likely to be a struct or a class? func test(prototype: Car) -> String { prototype.speed = 100 // Assume that speed is an Int variable prototype.saveDiagnostics() // Assume saveDiagnostics stores information about changes to the car state prototype.speed = 120 prototype.saveDiagnostics() prototype.speed = 200 prototype.saveDiagnostics()return prototype.GetDiagnostics() // Assume GetDiagnostics returns a diagnostics report}var myCar = Car(speed: 0)print("Speed before testing: \(myCar.speed)")var result = test(prototype: myCar)print("Speed after testing: \(myCar.speed)") Screen output: Speed before testing: 0Speed after testing: 0 1. Car is a class 2. Car is a struct 3. Car is neither a class nor a structGiven a public class named DryEraseMarker which contains: • two private data member variables named inkColor which is of type Color and length which of type int.• a constructor that does not take any parameter but it initializes the member variable inkColor to Color.BLACK and the member variable length to 8.• five public methods: two mutators (both void type) named setInkColor and setLength, two accessors named getInkColor which is of type Color and getLength which is of type int, and a write method which is of type void.• the mutator method setInkColor which is type void accepts one parameter named anotherColor which is of type Color and assigns the member variable inkColor to anotherColor.• The mutator method setLength which is of type void accepts one parameter named anotherLength which is of type int and assigns the member variable length to anotherLength.• the accessor method getInkColor which is of type Color does not accepts any parameter but it returns the member…in C# i need to Create a program named PaintingDemo that instantiates an array of eight Room objects and demonstrates the Room methods. The Room constructor requires parameters for length, width, and height fields (all of type int); use a variety of values when constructing the objects. The Room class also contains the following fields: Area - The wall area of the Room (as an int) Gallons - The number of gallons of paint needed to paint the room (as an int) Both of these values are computed by calling private methods. Include read-only properties to get a Room’s values. A room is assumed to have four walls, and you do not need to allow for windows and doors, and you do not need to allow for painting the ceiling. A room requires one gallon of paint for every 350 square feet (plus an extra gallon for any square feet greater than 350). In other words, a 12 x 3 x 10 room with 9-foot ceilings has 396 square feet of wall space, and so requires two gallons of paint. the errors are Room…
- In C# i need to Create a program named PaintingDemo that instantiates an array of eight Room objects and demonstrates the Room methods. The Room constructor requires parameters for length, width, and height fields (all of type int); use a variety of values when constructing the objects. The Room class also contains the following fields: Area - The wall area of the Room (as an int) Gallons - The number of gallons of paint needed to paint the room (as an int) Both of these values are computed by calling private methods. Include read-only properties to get a Room’s values. A room is assumed to have four walls, and you do not need to allow for windows and doors, and you do not need to allow for painting the ceiling. A room requires one gallon of paint for every 350 square feet (plus an extra gallon for any square feet greater than 350). In other words, a 12 x 3 x 10 room with 9-foot ceilings has 396 square feet of wall space, and so requires two gallons of paint. using static…The question #1 should be read as: hasValidPassword method that checks and return true if the password is not the same as username and it does not contains the user id Question #2 should accept only 3 parameters instead of 4. But it will have the 4th parameter for output. 3 input parameters + 1 output parameter + integer return code. IN C++ • All data members must be declared as “private” • No global variable is allowed to be declared and used • Methods within the class and the requested functions cannot have “cin” or “cout” but it should make use of parameters and return value instead. • “cin” and “cout” should be done in main() or any testing functions • Make sure that you clearly show how the C++ class, its methods and all the functions are being called at least twice and print out its return value and its results properly.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.
- WRITE PLEASEJAVA write grading program for a class with the following grading policies. thers a total of 2 quizzes, each graded on the basis of 10 points. theeres is 1 midterm exam and one final exam, each graded on the basis of 100 points. final exam counts for 50% of the grade, the midterm counts for 25%, and the 2 quizzes together count for a total of 25%. (Do not forget to normalize the quiz scores.) letter grade will be given based on the following criterion: 90 – 100 A 80 – 89 B 70 – 79 C 60 – 69 D 0 – 59 E program will read student’s scores from a txf file, save them in an arrayor arrays), process the arrays), print the student’s record, which consists of the name, 2 quiz and 2 exam scores as well along with students avg numscore for the course and final letter rade. please noteAll the scores are integers and a student name consists of no more than 10 characters. justify output fileWhich of the statements are true about the class Magazine? 01: class Magazine { 02: public: 03: Magazine (int maxSize = 100); 04: void add (Article a); 05: int numArticles() const; 06: Article getArticle (int i); 07: private: 08: Article* array; 09: int numberOfArticles; 10: }; The compiler will provide a destructor for this class. It has a default constructor It is const-correct. It has a copy constructor The programmer should provide an assignment operatorIn this exercise, you have to create a class called Point which can calculate distance between two points in the x-y plane. Problem Statement# You have to implement a class called Point that represents a specific point in the x-y plane. It should contain the following: ● fields: ○ x( integer type) ○ y( integer type) ● methods: ○ default constructor that initializes the point at (0,0)(0, 0)(0,0) ○ parameterized constructor that takes input x and y and initializes the point to the respective coordinates. ○ float distance(), a method which calculates the distance of the point (represented by the object) from the origin, i.e. (0,0)(0, 0)(0,0) ○ float distance(x1, y1), a method which calculates the distance between the point represented by the class object and (x1,y1)(x1, y1)(x1,y1) Sample Input# Point p1 = new Point(5, 5); Sample Output# distance() => 7.071 distance(2, 1) => 5.0 Part of the solution import java.lang.Math; class Point { // Private fields private int x;…