//This uses int casting. Casting is a way of getting the value of an expression and allowing it to be stored in another variable type without directly effecting the math that it does.
 
public class currencyConverter
{
	public static void main( String[] args ){
		double totalAmount = Double.valueOf( args[ 0 ] ); //takes any arguments from the commandline as uses them as input. Since commandline arguments are strings, you have to convert to int to preserve the cents
		int totalHundredDollars = (int)totalAmount / 100;  //divides the total amount of money you have by 100 to determine the amount of 100 dollar bills you can use
		totalAmount = totalAmount % 100;                   //replaces the current amount with the amount remaining after the calculation from the previous line
		int totalFiftyDollars = (int)totalAmount / 50;
		totalAmount = totalAmount % 50;
		int totalTwentyDollars = (int)totalAmount / 20;
		totalAmount = totalAmount % 20;
		int totalTenDollars = (int)totalAmount / 10;
		totalAmount = totalAmount % 10;
		int totalFiveDollars = (int)totalAmount / 5;
		totalAmount = totalAmount % 5;
		int totalTwoDollars = (int)totalAmount / 2;
		totalAmount = totalAmount % 2;
		int totalDollars = (int)totalAmount / 1;
		totalAmount = totalAmount % 1;
		int totalFiftyCents = (int)( totalAmount / .5 );
		totalAmount = totalAmount % .5;
		int totalTwentyCents = (int)( totalAmount / .2 );
		totalAmount = totalAmount % .2;
		int totalTenCents = (int)( totalAmount / .1 );
		totalAmount =  Math.round( ( totalAmount % .1 ) * 100 ); //determines how many cents are left over after performing all previous calculations, then multiplies by 100 since the round method only rounds for one decimal place
		int totalFiveCents = (int)( totalAmount / 5 );
 
		System.out.println( "100 dollars: " + totalHundredDollars );
		System.out.println( "50 dollars: " + totalFiftyDollars );
		System.out.println( "20 dollars: " + totalTwentyDollars );
		System.out.println( "10 dollars: " + totalTenDollars );
		System.out.println( "5 dollars: " + totalFiveDollars );
		System.out.println( "2 dollars: " + totalTwoDollars );
		System.out.println( "1 dollars: " + totalDollars );
		System.out.println( "50 cents: " + totalFiftyCents );
		System.out.println( "20 cents: " + totalTwentyCents );
		System.out.println( "10 cents: " + totalTenCents );
		System.out.println( "5 cents: " + totalFiveCents );
	}
}