Write an Java employee class with age, firstName, lastName, and pay characteristics. This class must implement Comparable interface and define compareTo method. Compare the employees according to their ages. Make sure that the following code proints the employess based on their age (smallest age to largest):

public static void main(String[] args){

Employee[] e = {new Employee(50), new Employee(25), new Employee(66)};

Arrays.sort(e);

for(Employee a: e)

System.out.println(a);

}