// Boss.java
// Boss 類是Employee繼承

public final class Boss extends Employee {
   private double weeklySalary; 

   // 經理Boss類的構造函數
   public Boss( String first, String last, double s)
   {
      super( first, last );  // call superclass constructor
      setWeeklySalary( s );
   }
   
   // 經理Boss類的工資
   public void setWeeklySalary( double s )
      { weeklySalary = ( s > 0 ? s : 0 ); }
   
   // 確定Boss的薪水
   public double earnings() { return weeklySalary; }
   
   // 打印姓名
   public String toString() 
   {
      return "經理: " + super.toString();
   }
}