In Java, Implement and test a class Employee. An employee has a first name (String), a last name (String) and a salary (double). A method raiseSalary and a method printEmployee will be implemented. The method raiseSalary will raise an employee salary by the amount passed to the method as an argument value. assume that instance variables are public.. Sample usage of the class Employee:

Employee john = new Employee(); //initial salary = 30,000 for example

john.raiseSalary(2000); //new value of salary will be 32,000