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Starshine Moonbeam · Guest

I'm not seeing what I'm doing wrong (or multiple things, probably). You
should be able to call a method for an object by object.method(); but
it's not giving me that. I'm getting method(double) cannot be applied to
(). I'm missing something fundamental. I have examples and they work so
the problem's me. I need to know the why of what's going wrong. The book
and the class lectures on the topic are a little....thin.

Here's what I have so far. I got the PayCheck class to compile but
TestPayCheck won't. I keep running into the method error message or this
really cute one, non-static method display() cannot be referenced from a
static context. Huh? I haven't declared anything static. Great, except I
haven't declared anything static.

Here's the code, please keep the heckling to a minimum.

/**
* PayCheck.java Chapter 4.
*
*@author (Munged - I didn't write it. It's a class exercise)
*@since January 28, 2004
*@re-created September 17, 2004
*/
public class PayCheck {

public double workHours;
private double grossPay;
public double netPay;
public double withHoldingRate;
public double hourlyRate;

// instance variables

/**
* Constructor for the Pay object
*
*@param workHours
*@param hourlyRate
*@param withHoldingRate
*@since
*/
public PayCheck(double workHours,
double withHoldingRate,
double hourlyRate) {

//calls setWorkHours, setWithHoldingRate and setHourlyRate

setWorkHours(workHours);

//reserves the variable for whatever you use for the next class.

setWithHoldingRate(withHoldingRate);
setHourlyRate(hourlyRate);
netPay = (workHours * hourlyRate) - (workHours * hourlyRate *
withHoldingRate);

}

// needed to put netPay up here in addition to putting it in the
// constructor() obj

/** call Constructor for the PayCheck object using no arguments */

public PayCheck() {}

/**
* Sets the workHours attribute of the PayCheck object
*
*@param workHours The new workHours value
*/
public void setWorkHours(double workHours) {

this.workHours = workHours;

}

/**
* Sets the withHoldingRate attribute
*
*@param withHolding - the new withHoldingRate value
*/

public void setWithHoldingRate(double withHoldingRate) {
this.withHoldingRate = withHoldingRate;
}

/**
* Sets the hourlyRate attribute
*
* @param hourlyRate - the new hourlyRate value
*/

public void setHourlyRate(double hourlyRate) {
this.hourlyRate = hourlyRate;
}

/**
* Sets the netPay variable
*
*@since
*/
public void setNetPay(double workHours, double hourlyRate, double
withHoldingRate) {

netPay = (workHours * hourlyRate) - (workHours * hourlyRate *
withHoldingRate);

}
public double getNetPay(double netPay) {

return netPay;
}

/**
* Description of the Method
*
*@since
*/
public void display() {
System.out.println("The net pay " + "for " + workHours + " hours
worked " +
" at a rate of " + hourlyRate + " is " + netPay + ", assuming a
withholding rate of " +
withHoldingRate);

}
}

/**
* This class tests the Testpaycheck class
*
*@author (Munged)
*@since Sept 18, 2004
*@created
*/
public class TestPayCheck {

// Declare instance variables for the class TestPayCheck.

private double check1;
private double check2;

// construction method
public void processPayChecks() {

//instantiate objects
// Class (name) = new Class();

PayCheck check1 = new PayCheck(40.0, 4.65, .15);
//creates object by sending the three arguments.
//workHours, hourlyRate, withHoldingRate

PayCheck check2 = new PayCheck();
//creates object by sending NO arguments.

check2.setWorkHours(35);
check2.setHourlyRate(10.50);
check2.setWithHoldingRate(.17);

check1.getNetPay();

}

}

--
Starshine Moonbeam
mhm31x9 Smeeter#29 WSD#30

no spam@lloyd-duke.net · Guest

The problem is in PayCheck.java
the method getNetPay should not take an argument.

so change
public double getNetPay(double netPay) {
//You are simply returning the value passed in
// I assume you do not want to do this
return netPay;
}

to

public double getNetPay() {
return netPay;
}

that should solve your compiler problem..

Starshine Moonbeam wrote:

Starshine Moonbeam · Guest

In article <8Cs3d.40173$Ot3.11920 (AT) twister (DOT) nyc.rr.com>, "no spam"@lloyd-
duke.net ("no spam"@lloyd-duke.net) dropped a +5 bundle of words...

Andrew Thompson · Guest

On Sun, 19 Sep 2004 22:31:59 -0500, Starshine Moonbeam wrote:

Andrew Thompson · Guest

On Mon, 20 Sep 2004 04:34:09 GMT, Andrew Thompson wrote:

Starshine Moonbeam · Guest

In article <1w61ml8x3gvqo$.zsxzm60rb48d.dlg (AT) 40tude (DOT) net>, Andrew Thompson
(SeeMySites (AT) www (DOT) invalid) dropped a +5 bundle of words...