Error

[Holly Leery]

Ok I have a question about the following code. I keep getting errors about the "static double findCharge(int Kwh)" line. Does something need to be before that to make it compile like public static int( ) ??? Help anyone?

 
// 
// This program prompts a user to enter a customer no. and the usage
// of electric in Kwh and totals each with JTextArea box at the end
 
import javax.swing.*;
 
public class ElectricBill
{
    
    public static void main( String[] args )
    {
 
// declare variables
        int customernumber, usage, kwh;
customercount = 0;
usagecount = 0;
        totalcharges = 0;
 

//prompt user for customer number and usage amount
customernumber = Integer.parseInt( JOptionPane.showInputDiaolg(
"Please enter a customer number or -999 to quit:" ) );
 
customercount = customercount + 1;
 
//prompt user for customer number and usage amount
usage = Integer.parseInt( JOptionPane.showInputDiaolg(
"Please enter the usage in KWH:" ) );
 
usagecount = usagecount + usage;
 
while (customernumber != -999 )
{
 
//takes kwh and calculates the total charge for that customer.
static double findCharge(int Kwh)
{
if (usage <= 300)
usage * .9;

 
else if (usage = 600)
( 300 * .9 ) + ( 300 * .8 );
else
( 300 * .9 ) + ( ( 300 - ( usage/2 ) ) * .8 );
 

else if (usage = 1000)
( 300 * .9 ) + ( 300 * .8 ) + ( 400 * .6 );
 else
( 300 * .9 ) + ( 300 * .8 ) + ( ( 400 - ( usage/2 ) ) * .6 );
 

else if (usage > 1000)
( 300 * .9 ) + ( 300 * .8 ) + ( 400 * .6 ) + ( ( usage - 1000 ) * .5 );
 
}

totalcharges = totalcharges + kwhe;
 

JTextArea outputarea = new JTextArea();
{
outputArea.setText( "Customer No\t Uasge in Kwh\t Total Charges" + "\n"
    "------------------------------------------" + "\n"
    "customernumber\t" + "usage\t" + "kwh" + "\n"
    "------------------------------------------" + "\n"
    "customercount\t" + "usagecount\t" + "totalcharges");
}
}
  
}
 

 

[Ernest Friedman-Hill]

Hi Holly,

You've "nested" the definition of findCharge() inside your main() method, and that's not allowed. Method definitions all have to be at the "top level" of a class, enclosed only by the class X {...} set of braces.

[Holly Leery]

So do I just move the static double part of the code or the whole while loop? Sorry I am sure that is a dumb question

[Carol Enderlin]

You need to move the method "static double part of the code" out of the while loop. In the while loop it looks like you'll need to call that method.

[Holly Leery]

Ok I understand..but I am still a little sketchy as to how to write that...any more help? I know it is probably hard to help with this problem. I don't quiet understand yet. Thanks again I really appreciate it.