1 create classes triangle rectangle shapedemo a triangle class instance variables wi 5346478

1. Create classes: Triangle, Rectangle, ShapeDemo

a. Triangle class

– instance variables: width, height

– instance methods: setWidth(double w), setHeight(double h), double getWidth(), double getHeight() and double getArea()

* A triangle's area is calculated by width*height*0.5

* all variables are private and methods public.

b. Rectangle class

– instance variables: width, height

– instance methods: setWidth(double w), setHeight(double h), double getWidth(), double getHeight() and double getArea()

* A rectangle's area is calculated by width*height

* all variables are private and methods public.

c. ShapeDemo

Create the main method in which you:

– create objects of Triangle and Rectangle that were defined in a and b.

– assign values for these objects using set methods.

– display areas of the objects you created.

2. Create classes: HourlyEmployee and HourlyEmployeeDemo

a. HourlyEmployee

– instance variables: employeeNumber, employeeName, hoursWorked, hourlyRate.

* employeeNumber and employeeName must be declared as String. hoursWorked is int, and hourlyRate is double.

– instance methods: set and get methods for each instance variable

– addtional instance method: calcMonthlyPay() that calculates a monthly payment.

* calcMonthlyPay() method must return an double value. A monthly payment can be calculated as: hoursWorked* hourlyRate

* all variables are private and methods public.

b. HourlyEmployeeDemo.

– Create the main method. You should include the following code block:

HourlyEmployee he1 = new HourlyEmployee(); //create a new HourlyEmployee object

he1.setEmployeeNumber(“000-00-0000”); // enter your student id here.

he1.setEmployeeName(“John Doe”); // enter your name

he1.setHourlyRate(10.25); he1.setHoursWorked(80);

System.out.println(he1.getEmployeeName() + “'s payment for this month is: $” + he1.calcMonthlyPay() );

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