Design a class named Employee (

Employee.java

) to represent an employee. The class

contains:

?

Two private String data fields named

firstName

and

lastName

for the first name and

last name of the employee.

?

A private double data field named

monthlySalary

for the monthly salary of the

employee.

?

A public no-argument constructor that creates a default employee.

?

A public constructor that creates an employee with the specified

firstName

,

lastName

, and

monthlySalary

.

?

The public accessor and mutator methods for

firstName

,

lastName

, and

monthlySalary

.

Draw the UML diagram (

EmployeeUML.docx

) for the class and then implement the

class. Write a test program (

EmployeeTest.java

) that creates two Employee objects and

display each employees monthly salary and yearly salary. Then give each employee a

10% salary increase by invoking the

setMonthSalary()

method for each Employee

object and finally display each employees monthly salary and yearly salary again. The

output should look exactly like the following:

Before the 10% salary increase:

John Does monthly salary is $3,000 and his yearly salary is $36,000.

Jane Does monthly salary is $4,000 and her yearly salary is $48,000.

After the 10% salary increase:

John Does monthly salary is $3,300 and his yearly salary is $39,600.

Jane Does monthly salary is $4,400 and her yearly salary is $52,800.