// Kyle Thayer, CSE 142
// Shows an example of Polymorphism
public class EmployeeMain {
   public static void main(String[] args) {
      LegalSecretary liz = new LegalSecretary();
      Employee ed = new Employee();
      Secretary sally = new Secretary();
      Lawyer lisa = new Lawyer();
      
      //Since Liz is a legal secretary, this calls the specific
      // legal secretary getSalary() method
      System.out.println("Liz's salary: " + liz.getSalary());
      // Since Ed is a normal employee, it calls the normal
      // employee getSalary() method
      System.out.println("Ed's salary: " + ed.getSalary());
      
      //Since Lisa is a Lawyer, we can ask her to sue
      lisa.sue();
      // Sally is not a Lawyer, so we can't ask her to sue
      //sally.sue();
      
      
      // We Can also create different types of employees and store these in variables of
      // type Employee.
      Employee sasha = new Secretary();
      Employee lucas = new Lawyer();
      Employee linda = new LegalSecretary();
      
      // Linda is a legal secretary so it calls the specific
      // legal secretary getSalary() method
      System.out.println("linda's salary: " + linda.getSalary());
      // Sasha is a secretary which inherits the normal employee
      // getSalary() method
      System.out.println("sasha's salary: " + sasha.getSalary());
      
      //Even though Lucas is a Lawyer, he is saved in an Employee
      // variable, and Java doesn't know if any given Employee can sue
      //lucas.sue();
      // Knowing that lucas is a lawyer, I can tell Java to consider
      // him a lawyer by casting and then ask him to sue
      ((Lawyer) lucas).sue();
      
      //If I try to cast a non-lawer as a lawyer, Java will compile
      // but it will break when I try to run it:
      //((Lawyer) sasha).sue();
      
      
      
      // Because Secretary, Lawyer and LegalSecretary are all Employees, we can store these
      // objects in an array of Employees
      Employee[] employees = {liz, ed, sally, lisa, sasha, lucas, linda};
      for (int i = 0; i < employees.length; i++) {
         printInfo(employees[i]);
      }
   }
   
   // Prints the info for an Employee.
   // Note: Any object that is an Employee (extends Employee) can be passed to
   // printInfo since they all have the methods called in printInfo
   public static void printInfo(Employee e) {
      System.out.println(e.getSalary());
      System.out.println(e.getVacationDays());
      System.out.println(e.getHours());
      System.out.println(e.getVacationForm());
      System.out.println();
   }
}