Thread: Formating integers into money

having the following fields for my money class.

import java.text.DecimalFormat;
public class Money 
{
		//Fields for money will hold dollars and cents
	private long dollars;
	private long cents;

My task is to use those fields and make a toString method that returns them like a dollars sign. For instance, if there are 32 dollars and 40 cents, then in my String method I have to return something similar to this "$32.40."

I have already tried some of the methods, but they don't seem to work fine.

public String toString()
	{
		DecimalFormat formatter=new DecimalFormat("$#0");
		DecimalFormat formatCents=new DecimalFormat(".00");
		return formatter.format(dollars)+ formatCents.format(cents);
	}

Anyone willing to lend an idea?

--- Update ---

 import java.text.DecimalFormat;
public class Money 
{
		//Fields for money will hold dollars and cents
	private long dollars;
	private long cents;
 
	//Create a constructor initlizing the fields
	public Money(double money)
	{
		if(money<0)
			System.out.print("Negative Amount cannot be accepted");
		else
		{
		long total_cents=(long)money*100;
		dollars=total_cents/100;
		cents=total_cents%100;
		}
	}
	//Return a toString method that returns a string
	public String toString()
	{
		DecimalFormat formatter=new DecimalFormat("$#00.00");
		long total_Cents=(dollars*100)+cents;
		return formatter.format(total_Cents);
	}

Actually changed a little on my code and I believe strongly this should work; however, doesn't seem to. In my demo,

public class Dem
{
 
 
	public static void main(String[] args) 
	{
		Money myMoney=new Money(7.10);
		System.out.print(myMoney.toString());
 
	}
 
}

I pass this, but I get "$700.00" as the answer... confused...

--- Update ---

nevermind, my calculation is wrong in the toString method, but still the cents do not appear to be showing.

you have a little problem with this statement in your constructor
long total_cents=(long)money*100;
dollars=total_cents/100;
cents=total_cents%100;

Here's another way.
let say I'll pass 7.45 (as double primitive type)
First, I'll get the dollar which is 7
I'll just equate it to int or long primitive type. that way, I'll get rid of .45
ex:
int dollar = (int) 7.45; or
long dollar = (long) 7.45;
that way, variable dollar is equal to 7

next I'll get the modulo of 7.45 in 1. that way, I can get the decimal place of the number
int cent = 7.45 % 1; or
long cent = 7.45 % 1;
that way, the value of cent equal to 45. you just need to format it in some case, in this case the modulo is 4500...02.

then return it
return "$" + dollar + " cent" + cent;

of course there is still another way of doing that.

--- Update ---

long total_cents=(long)money*100; -- casting it to long first (7.10 becomes 7) then multiply it to 100 (becomes 700)
dollars=total_cents/100; -- 700 divided by 100 is 7 (just getting the dollar value).
cents=total_cents%100; -- you are just getting the remainder of the dollar when divided by 100.

you can do this
long total_cents=(long) (money*100); -- as you noticed, I put parenthesis in the multiplication so it means to multiply first before casting to long