1. Write a class named Car that has the following fields:
- year model: The yearModel field is an int that holds the car's year model.
- make: The made field is a String object that holds the make of the car.
- speed: The speed field is an int that holds the car's current speed.
In addition, the class should have the following methods :
- Constructor: The constructor should accept the car's year model and make as arguments.
These values should be assigned to the object 's yearModel and make fields. The constructor
should also assign 0 to the speed field.
- Accessor: The appropriate accessor methods should be implemented to access the values stored
in the object 's yearModel, make, and speed fields.
- accelerate: The accelerate method should add 5 to the speed field when it is called.
- brake: The braking method should subtract 5 from the speed field each time it is called.
Demonstrate the class in a program that contains a Car object, and then calls the
accelerate method five times. After each call to the accelerate method, get the current
the speed of the car and print it on a separate line. Then, call the brake method five times,
each time printing the current speed of the car on a separate line.
- name: a String containing the employee's name
- idNumber: an int representing the employee's ID number
- rate: a double containing the employee's hourly pay rate
- hours: an int representing the number of hours this employee has worked
- The class should also have the following methods :
- Constructor: takes the employee's name and ID number as arguments
- Accessors: allow access to all of the fields of the Payroll class
- Mutators: let the user assign values to the fields of the Payroll class
- grossPay: returns the employee's gross pay, which is calculated as the number of
hours worked times the hourly pay rate.
Write another program that demonstrates the class by creating a Payroll object, then
asking the user to enter the data for an employee in the order: name, ID number, rate, hours.
The program should then print out a statement in the following format (for example, if
you had an employee named Chris Jacobsen with ID number 11111, who works for 5 hours at
Chris Jacobsen, employee number 11111, made $50.00 in gross pay.
Using text forming so that the gross pay is rounded to two decimal places.
Write a class that has three overloaded static methods for calculating the areas of the
following geometric shapes:
Here are the formulas for calculating the area of the shapes.
Area of a circle: Area = π r2
where p is Math.PI and r is the circle's radius
Area of a rectangle: Area = Width x Length
Area of a cylinder: Area = π r2 h
where p is Math.PI, r is the radius of the cylinder's base, and
his the cylinder's height
Because the three methods are to be overloaded, they should each have the same name, but different
parameter lists. Demonstrate the class in a complete program .
- length - an int containing the tract's length
- width - an int containing the tract's width
The class should also have the following methods :
- area - returns an int representing the tract's area
- equals - takes another LandTract object as a parameter and returns a boolean saying
whether or not the two tracts have the same dimensions (This applies regardless of whether the dimensions match up. i.e., if the length of the first is the same as the width of the other and vice versa, that counts as having equal dimensions.)
- toString - returns a String with details about the LandTract object in the format:
A LandTract object with length 30 and width 40
(If, for example, the LandTract object had a length of 30 and a width of 40.)
Write a separate program that asks the user to enter the dimensions for the two tracts of
land (in the order length of the first, width of the first, length of the second, the width of the second). The program should print the output of two tracts' toString methods followed by a sentence stating whether or not the tracts have equal dimensions. (If the tracts have the same dimensions, print, "The two tracts have the same size." Otherwise, print, "The two tracts do not have the same size.") Print all three statements on separate lines.
2.Design a Payroll class with the following fields:
3. Area Class
4. Make a LandTract class with the following fields: