Thread: HW problem. Trying to finish up the coding for this assignment

Hi,
I have gotten all of the errors out of my coding as of now. The problem is, I am trying to figure out how to setup the very end of it to display the fees. Here is my code as of now as well as the question:

A bank charges a base fee of $10 per month, plus the following check fees for a commercial checking account:
$.10 each for less than 20 checks
$.08 each for 20-39 checks
$.06 each for 40-59 checks
$.04 each for 60 or more checks

Write a program that asks for the number of checks written for the month. The programs should then calculate and display the bank's service fees for the month.

import java.util.Scanner;  // scanner class
 
public class PROB3_CHAL15
{
public static void main(String[] args)
{
	String input;
    char pack;
	double checks =0,
		   totalfee =0,
		   fee = 10,
		   fee1 =.1,
		   fee2 = .08,
		   fee3 = .06,
		   fee4 = .04,
		   first =0,
		   second =0,
		   third =0,
		   fourth =0;
    Scanner keyboard = new Scanner(System.in);
 
	int number; 
	System.out.println("Please enter the number of checks you wrote for the past month");
    input = keyboard.nextLine();
    pack = input.charAt(0);
 
	if (checks < 0)  // negative is false
	{
	System.out.print("ERROR: You cannot enter a negative amount!");
	}
 
	if(checks <20)
		first = (checks * fee1);
	if(checks >= 20 && checks <= 39)
		second = (19*fee1) + ((checks-19) * fee2);
	if(checks >= 40 && checks <= 59)
		third = (19*fee1) + (20 * fee2)+((checks-39) * fee3);
	if(checks >= 60)
		fourth =(19*fee1) + (20 * fee2)+(20 * fee3)+((checks-59) * fee4);
 
	                 //adds all fees
	totalfee = (fee+first+second+third+fourth);
 
	                 //if closing true(because user didn't enter negative number, show total fees
	System.out.print("Your total monthly Bank Fees are $" + totalfee);
}
}

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OK. Thanks, and sorry about that.

Thanks for fixing.

Are you sure that the total fee is a sum of each block of checks times that block's fee? I interpret the fee as being $10 plus a single rate * the total number of checks written. For example, if 57 check were written, then the fee would be:

10 + 0.06 * 57

I could be wrong, but that's how I read it.

Yea your correct on that. The problem is I cannot figure how to transfer this into code

Set the checkFee based on the number of checks:

if ( checks >= 60 )
{
    checkFee = fee4;
}
else if ( checks >= 40 )
{
    checkFee =  fee3;
}
// etc. . .

Then compute the total fee as 10 + checkFee * checks

Yea I updated what I have to what you updated, but keep getting "error: variable checkFee might not have been initialized" on line 37. Heres where I am at now:

import java.util.Scanner;  // scanner class
 
public class PROB3_CHAL15
{
public static void main(String[] args)
{
	double checks =0,
		   totalfee =0,
		   fee = 10,
		   fee1 =.1,
		   fee2 = .08,
		   fee3 = .06,
		   fee4 = .04,
	       checkFee;
    String input;
    Scanner keyboard = new Scanner(System.in);
 
	int number; 
	System.out.println("Please enter the number of checks you wrote for the past month");
    input = keyboard.nextLine();
 
	if (checks < 0)  // negative is false
	{
	System.out.print("ERROR: You cannot enter a negative amount!");
	}
 
    if(checks >= 60)
		checkFee =(fee4);
	else if(checks >= 40)
		checkFee = (fee3);
	else if(checks >=20)
		checkFee = (fee2);
	else if(checks <20)
		checkFee = (fee1);
 
	                 //adds all fees
	totalfee = (fee + checkFee * checks);
 
	                 //if closing true(because user didn't enter negative number, show total fees
	System.out.print("Your total monthly Bank Fees are $" + totalfee);
}
}

Do you see that you initialized (set to an initial value) all of your other variables but not checkFee? Fix that.

OK! Thanks so much GregBrannon, your a godsend!!

You're welcome.

Keep coding.