/**
 * Representation of a generic employee.
 * This class needs to be extended to create specific employee classes
 * @author Hal Perkins
 * @version CSE143 lecture example, sp03, sp06
 */
public abstract class Employee {
  
  // instance variables
  private String name;            // employee name
  private int    id;              // employee id number
  
  /**
   * Construct a new employee with the give name and id number
   * @param name Employee's name
   * @param id   Employee's id number
   */
  public Employee(String name, int id) {
    this.name = name;
    this.id   = id;
  }
  
  /**
   * Return the name of this employee
   * @return Employee name
   */
  public String getName() {
    return name;
  }
  
  /**
   * Return the id number of this employee
   * @return Employee id number
   */
  public int getId() {
    return id;
  }
  
  /**
   * Return whether this employee is happy
   * @return true if employee is happy, false if not
   */
  public boolean isHappy() {
    // we have happy employees
    return true;
  }
  
  /**
   * Return this employee's attitude
   * @return a string with employee name and whether he/she is happy
   */
  public String getAttitude() {
    String result = getName() + " is ";
    if (!isHappy()) {
      result = result + "not ";
    }
    result = result + "happy";
    return result;
  }
  
  /**
   * Return the pay earned by this employee
   * @return Employee's pay for the current pay period
   */
  public abstract double getPay();
  
}