/* Pay.java
 * May 3, 2003
 */
 
/** Create a class name Pay hat includes five double 
 *  variables that hold hours worked, rate of pay per
 *  hour, withholding rate, gross pay,and net pay. 
 *  Create three overloaded computeNetPay() methods.
 *  Gross pay is computed as hours worked,multiplied 
 *  by pay per hour.
 *  When computeNetPay receives values for hours, pay 
 *  rate,and withholding rate,it computes he gross 
 *  pay and reduces it by the appropriate withholding 
 *  amount to produce the net pay.
 *  When computeNetPay() receives two arguments, the 
 *  withholing 
 *  rate is assumed to be 15 percent. 
 *  When computeNetPay() receives one argument, 
 *  the withholding rate is assumed to be 15 percent,
 *  and the hourly rate is assumed to be 4.65.
*/
public class Pay{
 
    /** Number of hours worked inpay period. */
    private double hoursWorked;
        
    /** Rate of pay per hour. */
    private double payRate;
        
    /** Rate of withholding in per cent. */
    private double withholdingRate;
        
    /** hoursWorked * payRate .*/
    private double grossPay;
        
    /** grossPay - withholding .*/
    private double netPay;
    
    /** The main() method tests all 
     *  three overloaded methods.
     */
    public static void main(String[] args){
        Pay pay = new Pay();
        double pay1 = pay.computeNetPay(40.00d,5.50d,10.0d); 
        System.out.println("NetPay (Method 1) = " + String.valueOf(pay1));
        double pay2 = pay.computeNetPay(40.00d,10.0d); 
        System.out.println("NetPay (Method 2) = " + String.valueOf(pay2));
        double pay3 = pay.computeNetPay(40.00d); 
        System.out.println("NetPay (Method 3) = " + String.valueOf(pay3));
    
    }
    
    /** Computes net pay from three inputs hoursWorked, 
     *  payRate, and withholdingRate.
     */
    public double computeNetPay(
        double hoursWorked, 
        double payRate,
        double withholdingRate){
            
        this.hoursWorked = hoursWorked;
        this.payRate = payRate;
        this.withholdingRate = withholdingRate;
            
        grossPay = hoursWorked * payRate;
        double withholding = grossPay * withholdingRate / 100;
        netPay = grossPay - withholding;
        return netPay;
    }
 
    /** Computes net pay from two inputs hoursWorked, 
     *  and payRate. withholdingRate = 15%.
     */
    public double computeNetPay(
        double hoursWorked, 
        double payRate){
            
        this.hoursWorked = hoursWorked;
        this.payRate = payRate;
        withholdingRate = 15;
            
        grossPay = hoursWorked * payRate;
        double withholding = grossPay * withholdingRate /100;
        netPay = grossPay - withholding;
        return netPay;
    }
    
    /** Computes net pay from one inputs hoursWorked, 
     *  payRate = 4.65, and withholdingRate = 15%.
     */
    public double computeNetPay(double hoursWorked){
            
        this.hoursWorked = hoursWorked;
        payRate = 4.65;
        this.withholdingRate = 15;
        grossPay = hoursWorked * payRate;
        double withholding = grossPay * withholdingRate /100;
        netPay = grossPay - withholding;
        return netPay;    
    }
    
}