Creating a program should print equivalent amount

[A. Al Kaabi]

Hi everyone,
Actually I am a beginner in using Java program. And I would ask a question.
The user should input an amount of money and it should be double, the output should be : # tens bills, # five bills, # ones coins, # fifty (half a $)coins...
The Question is how could I creat this program that I should use the money entered by the user as an integer,, and after that use it as a double to imput the last value,, and all the output should be in the same dialog box???

[agent_x91]

I'm confused by your question... I understand you want the input for the amount of different bills, but what is it you plan to do with it exactly? :confused:

[A. Al Kaabi]

Thanks for replying,
Well, the question said that I should ask the user to enter a "DOUBLE" value representing this amount of money. If For example they entered $23.80 the output will be as the following:
2 ten bills
0 five bills
3 one (coins)

1 (half a dirham;UAE currency)
1(25 fils)
0 (ten fils)
1 (five fils)
--------

But if you recognize the last 4 output they should be double values,, and I used the value as an integer to output the first 3 outputs. My problem is if I put the "MONEY value" as an integer the last 4 output doesnt show, and if I put is as a double ,, all the value will be in the first output which is "The ten bills"

***THe Q is how could I used the money value that the user enterd to have the same out put as above in the java program.

Thanks,
Miss Al Kaabi

[sae]

Perhaps if would help if you post the code that you have already done?

Personally I would use charAt() and modulus (%) to split the number apart.

[A. Al Kaabi]

This is the code I have done!


import javax.swing.JOptionPane;
public class PartA {

public static void main(String[] args) {
String money_s;
double money, fifty_f, twenty_f, ten_f, five_f,one_f;
int money_int, tens, fives, ones;
String Message="";

money_s=JOptionPane.showInputDialog("Enter an amount of money : ");
money_int=Integer.parseInt(money_s);
tens=(money_int/ 10);

fives=(money_int-(tens*10))/5;
ones=(money_int-((tens*10)+(fives*5)))/1;
money=Double.parseDouble(money_s);
fifty_f=(money-((tens*10)+(fives*5)+(ones)));
Message+= tens+" ten dirham bills \n"+fives+" five dirham bills \n" +ones+" one dirham coins\n"+fifty_f+ " fifty fils (half a dirham) coins";

JOptionPane.showMessageDialog(null, Message, "Information", JOptionPane.INFORMATION_MESSAGE);

[sae]

Try this:


import javax.swing.JOptionPane;
public class partA {

public static void main(String[] args) {
String money_s;
int money_int, tens, fives, ones, stringLength, money;
int fifty_f;
String Message="";

money_s=JOptionPane.showInputDialog("Enter an amount of money: ");

//Find period as everything before is used to calculate 10s, 5s and 1s.
int firstPeriod = money_s.indexOf (".");
String dollar = money_s.substring (0,firstPeriod);
//assign number before period to money_int
money_int = Integer.parseInt(dollar);

tens=(money_int/ 10);
System.out.println("Tens: " + tens);

fives=(money_int-(tens*10))/5;
System.out.println("Fives: " + fives);

ones=(money_int-((tens*10)+(fives*5)))/1;
System.out.println("Ones: " + ones);

//As we know where the period occus (firstPeriod variable) we know that
//everything after this point is a portion of a dollar

//Get string length
stringLength = money_s.length();

//Create string for everything after period (+1 moves us 1 character back from the period)
String cents = money_s.substring(firstPeriod+1,stringLength);

//Assign cents to money variable
money=Integer.parseInt(cents);

fifty_f=(money/50);

System.out.println("Fifty: " + fifty_f);

Message+= "The amount of " + money_s + " contains:\n" +tens+" ten dirham bills \n"+fives+" five dirham bills \n" +ones+" one dirham coins\n"+fifty_f+ " fifty fils (half a dirham) coins";

JOptionPane.showMessageDialog(null, Message, "Information", JOptionPane.INFORMATION_MESSAGE);
}
}

[A. Al Kaabi]

Thanks "Sae".. But Unfortunately it contains the same mistake ,, than I can not input a double number as the question said ,, But thanks any way :)

Miss Al Kaabi

[sae]

What do you mean by input a double number? I can add many double numbers such as 123.45, etc.

What do you mean by this:

I should use the money entered by the user as an integer,, and after that use it as a double to imput the last value,,


What is the "last value"? :confused:

[A. Al Kaabi]

Hi,,

You know when I entered a double number , the program said "Process completed" but I cant see the Message Dialog box, that shows the output??? ANy Idea!!
and I was thinking that it wasn't working..

Miss Al Kaabi

[sae]

Sorry. I don't know what you mean. When I run the program I get a box asking to input my number and then another box that tells me the answers.

[A. Al Kaabi]

Sorry then ,, there is something wrong with my program..
Thanks any way for your help:)

[A. Al Kaabi]

Thanks Bro It just worked,, =),, I copy i t and used another project and it finally works,, Thank you so much..=)

Miss Al Kaabi

[sae]

no problem.

[agent_x91]

I think I've seen about 6 people ask for this same program over a couple of years. Maybe we should remember this thread if anyone wants help with this program in future :cool: