Calculating Payroll

Question

I have written the code as best that I know how but I am unsure that the questions asked are being fulfilled. Any advice to improve this code would really help me.

Question asked:

1. Create a new project in NetBeans called Payrollimplement
2. Create a new class in the same project called PayrollCal

3. In this class you will have four methods:

   • The first method will set pay
   • The second method will return the pay
   • The third method will calculate take home pay (pay-tax which will be passed onto the method)
   • The fourth method will calculate a bonus which is 10% int this case.

4. In your main class create a PayrollCal object and invoke your methods to ensure they work.

---

package payrollcal;

/**
 *
 * @author ace
 */
public class PayrollCal {

    public static void setPay()
    {
        double setPay = 400;
        double tax1Pay = setPay;
        System.out.println("Wages are:\t"+setPay);
        System.out.println("Wages + Bonus are:\t"+(returnPay(setPay)+setPay));
        System.out.println("Tax Payed on salary:\t"+(TaxPay(tax1Pay)));
        System.out.println("Total salary :\t"+((returnPay(setPay))+setPay+-(TaxPay(tax1Pay))));
    }

    public static double returnPay(double setPay)
    {
        return (setPay *.1);
    }

    public static double TaxPay(double tax1Pay)
    {
        double netPay = 400*.1;
        double tax = netPay/.24;
        double taxPay;
        tax1Pay = netPay - (netPay/tax);
        return (tax1Pay);
    }
    public static void main(String[] args) 
    {
        setPay();


    }

}

Answer 1

Let's take this step-by-step

• The first method will set pay
• The second method will return the pay
• The third method will calculate take home pay (pay-tax which will be passed onto the method)
• The fourth method will calculate a bonus which is 10% int this case.

First we choose names for the four methods. I'm going to go with

• setPay
• getPay
• getTakeHomePay, and
• getBonus

Now we need to decide the return type and parameters for these methods.

• setPay should have one parameter, pay, which is a double. It does not return a value, so it has type void.
• getPay should return a double and has no parameters:.
• getTakeHomePay returns a double and has one parameter, a double named tax.
• getBonus returns a double and has no parameters.

Now we have the skeleton of our class

class PayrollCal {
  public void setPay(double pay) {
  }

  public double getPay() {
  }

  public double getTakeHomePay(double tax) {
  }

  public double getBonus() {
  }
}

Let's start at the top, with setPay. We need an instance variable pay of type double.

class PayrollCal {
  private double pay;

  public void setPay(double pay) {
    this.pay = pay;
  }

  ...

The other methods I will leave up to you.