Write a program to enter employee data, including Social Security number and salary, into an array. The maximum number of employees is 50, but your program should also work for any number of employees less than 50. Your program should use two exception classes, one called SSNLengthException for when the Social Security number entered - without dashed or spaces - is not exactly nine characters. When an exception is thrown, the user should be reminded of what she or he entered, told why it is inappropriate, and asked to reenter the data. After all data has been entered, your program should display the records for all employees, with an annotation stating whether the employee's salary is above or below average. You will also need to define the classes Employee, SSNLengthExceptoin.