driver.java

关于多态方面练习的编程

/*
 * Driver.java
 *
 * Created on February 28, 2001, 1:29 PM
 */


/**
 *
 * @author  
 * @version 
 */
package Employee;

public final class Driver extends Hourly {
    
    double onCall;
    
    /** Creates new Driver */
    public Driver(String name, String taxID, double wage, double hours, double oncall) {
        super(DRIVER,name, taxID, wage, hours);
        setOnCall(oncall);
    }

    public double earnings() {
        return onCall*2*super.getWage()+super.earnings();
    }
    
    public void setOnCall( double h ){
        if (h>=0 && h+getHours()<=24*7)
            onCall = h;
        else
            onCall = 0;
    }
    
    public double getOnCall( ){
       return this.onCall;
    }
    
    public void setHours( double hrs ){
        if (hrs>=0 && onCall+hrs <= 24*7)
            super.setHours(hrs);
        else
            super.setHours(0);
    }
    
    
    //Testing
    public static void main (String args[])
		{
    }
}