TestScores Class
Design a TestScores class that has fields to hold three test scores. The class should have a constructor, accessor and mutator methods for the test score fields, and a method that returns the average of the test scores. Demonstrate the class by writing a separate
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- Design a LandTract class that has two fields (i.e. instance variables): one for the tract’s length(a double), and one for the width (a double). The class should have: a constructor that accepts arguments for the two fields a method that returns the tract’s area(i.e. length * width) an equals method that accepts a LandTract object as an argument. If the argument object holds the same data (i.e. length and width) as the calling object, this method should return true. Otherwise, it should return false. a toString method (that returns a String representation of the tract’s length, width, and area). Demonstrate the class in a program by creating an array of three LandTract objects initialized with user input. Then, print the info of the LandTract objects stored in the array by invoking the toString method (implicitly or explicity). Also, use the equals method to compare at least two LandTract objects and print wether they are of equal size or not. Sample Output:…arrow_forwardWrite a class named Employee that has the following fields:• name. The name field references a String object that holds the employee’s name.• idNumber. The idNumber is an int variable that holds the employee’s ID number.• department. The department field references a String object that holds the name ofthe department where the employee works.• position. The position field references a String object that holds the employee’sjob title.The class should have the following constructors:• A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name, employee’s ID number, department, andposition. • A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name and ID number. The department and positionfields should be assigned an empty string (""). • A no-arg constructor that assigns empty strings ("") to the name, department, andposition fields, and 0 to the idNumber field.…arrow_forwardDesign a class named MyInteger. The class contains:■■ An int data field named value that stores the int value represented bythis object.■■ A constructor that creates a MyInteger object for the specified int value.■■ A getter method that returns the int value.■■ The methods isEven(), isOdd(), and isPrime() that return true if thevalue in this object is even, odd, or prime, respectively.■■ The static methods isEven(int), isOdd(int), and isPrime(int) thatreturn true if the specified value is even, odd, or prime, respectively.■■ The static methods isEven(MyInteger), isOdd(MyInteger), andisPrime(MyInteger) that return true if the specified value is even, odd,or prime, respectively.■■ The methods equals(int) and equals(MyInteger) that return true ifthe value in this object is equal to the specified value.■■ A static method parseInt(char[]) that converts an array of numericcharactersto an int value.■■ A static method parseInt(String) that converts a string into an int value.Draw the UML…arrow_forward
- Instruction Write a class Car that contains fields “make”, “model” and “year.” The first two fields are Strings and the third one is an int. Define a constructor to accept and initialize instance data. Then define more methods(see code below). A toString method is included to print the description of the car. Then create a drive class called CarTest which has a main method. Portion of the program is given. You’ll complete the program. When you run CarTest the result should look like this: > run CarTest 2007 Ford Taurus 2011 Honda Odyssey 1999 Toyota Corolla 1966 Ford Mustang Update data! 2007 Ford Explorer 2010 Honda Odyssey 1999 Nissan Maxima 1966 Ford Mustang Student Here! Hi, I've tried typing the code (The screenshots attached) but kept getting errors. Im not sure what to do so I hope that you can help me! Thank You!arrow_forwardpublic Account (double initialBalance){balance = initialBalance;}public Account () {balance = 0;}public void deposit (double amount){balance += amount; // Balance = balance + amount}public void withdraw (double amount){balance -= amount; // balance = balance - amount}public void close (){balance = 0;}public String toString(){return "balance: " + balance;}} Modify the Account class by adding two instance variables containing the customer's name and the account number. Both will be String objects. Modify the primary constructor for the Account class so that it takes three parameters: the balance, the customer's name, and the account number. Add instance methods named getCustomerName and getAccountNumber that return the customer name and account number.arrow_forwardCreate 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.arrow_forward
- Design a class named MyInteger. The class contains: ■ An int data field named value that stores the int value represented by this object. ■ A constructor that creates a MyInteger object for the specified int value. ■ A get method that returns the int value. ■ The methods isEven(), isOdd(), and isPrime() that return true if the value in this object is even, odd, or prime, respectively. ■ The static methods isEven(int), isOdd(int), and isPrime(int) that return true if the specified value is even, odd, or prime, respectively. ■ The static methods isEven(MyInteger), isOdd(MyInteger), and isPrime(MyInteger) that return true if the specified value is even, odd, or prime, respectively. ■ The methods equals(int) and equals(MyInteger) that return true if the value in this object is equal to the specified value. ■ A static method parseInt(char[]) that converts an array of numeric characters to an int value. ■ A static method parseInt(String) that converts a string into an int value. Draw the UML…arrow_forward7)Circle Class Write a Circle class that has the following fields: radius: a double PI:a final double initialized with the value 3.14159 The class should have the following methods: Constructor. Accepts the radius of the circles as an argument. Constructor. A no-arg constructor that sets the radius field to 0.0. setRadius. A mutator method for the radius field. getRadius.An accessor method for the radius field. area. Returns the area of the circle, which is calculated as area. Returns the area of the circles, which is calculated as area= PI * radius * radius diameter. Returns the diameter of the cirlce, which is calculated as diameter = radius * 2 circumference. Returns the circumference of the circle, which is calculated as circumference = 2 * PI * radius Write a program that demonstrates the Circle class by asking the user for the circles's radius, creating a Circle object, and then reporting the cirlce's area, diameter, and circumference.arrow_forwardTemp Class - Create Temp class whos job is to hold a temp in degrees F and gives methods to get the temp in F, Celsius, and Kelvin. The class should follow the instance variable (field): ftemp (double type that holds F temp)Follow these methods with the class.. Constructor --Will accept Fahrenheit temperature as a double to store it in the ftemp field. setFahrenheit - The setFahrenheit method accepts a Ftemperature as a doubleto stores it in the ftemp field. getFahrenheit - Returns the value of the ftemp field, as a Fahrenheit temperature (no conversion required). getCelsius - Returns the value of the ftemp field converted to Celsius. [C e l s i u s = ( 5.0 / 9.0 ) × ( F a h r e n h e i t − 32 )] getKelvin - Returns the value of the ftemp field converted to Kelvin. [K e l v i n = ( ( 5.0 / 9.0 ) × ( F a h r e n h e i t − 32 ) ) + 273] Exemplify the temp class by writing a (test) program that is separate and promotes users for an F Fahrenheit temp. The program must create an…arrow_forward
- console application named SalesTransactionDemo that declares several SalesTransaction objects and dispplays their values and their sum. The SalesTransaction class contains fields for a salesperson name, sales amount, and comission rate. Include three constructors for the class. Once constructor accepts values for the name, sales amount, and rate, and when the sales value is set, the constructor computes the commission as sales value time commission rate. The second constructor accepts a name and sales amount, but sets the commission rate to 0. The third constructor accepts a name and sets all other fields to 0. An overloaded + operator add the sales values for two SalesTransaction objects.arrow_forwardCircle ClassWrite a Circle class that has the following fields:• radius: a double• PI: a final double initialized with the value 3.14159The class should have the following methods:• Constructor. Accepts the radius of the circle as an argument.• Constructor. A no-arg constructor that sets the radius field to 0.0.• setRadius. A mutator method for the radius field.• getRadius. An accessor method for the radius field.• area. Returns the area of the circle, which is calculated asarea = PI * radius * radius• diameter. Returns the diameter of the circle, which is calculated asdiameter = radius * 2• circumference. Returns the circumference of the circle, which is calculated ascircumference = 2 * PI * radiusWrite a program that demonstrates the Circle class by asking the user for the circle’s radius, creating a Circle object, and then reporting the circle’s area, diameter, and circumference.arrow_forwardDesign a class called Date that has integer data members to store month , day, and year. The class should have two constructors; a default constructor that accepts no parameters, and a three-parameter constructor that allows the date to be set by the programmer. If the user creates a Date object without passing any arguments, or if any of the values passed are invalid, the default values of 1, 1, 2001 (i.e., January 1, 2001) should be used. The class should have three (3) member functions to print the date in the following formats: 3/15/16 March 15, 2016 15 March 2016 Demonstrate the class by writing a program that uses it. Be sure your program only accepts reasonable values for month and day. The month should be between 1 and 12. The day should be between 1 and the number of days in the selected month. I expect to see all uses of the constructors that you made, including the error checking. I also expect to see all uses of the 3 output functions in your program. You are responsible…arrow_forward
- Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,