Validating Swedish Currency

Question

Hello,
The problem I have is that I'm unable to validate Swedish Currency from input field.
Knowing that the correct Swedish currency format is (1 234,45) which is equivalent to (1,234.45) in USD.
Assume the following;
String S = "1 234,56";
java.text.NumberFormat currency = java.text.NumberFormat.getCurrencyInstance(new java.util.Locale("sv", "SE" ) );
String S1= (String)currency.format( 1234.56 );
the issue here when I do
System.out.println(S1.compareTo(S));
I always get (128)which means both Strings are not equal, while I'm expecting (0) as indication that both strings are equal.
When I print S , and S1, both shows the correct format of "1 234,56"
Can someone explain why these Strings (S,S1)are not equal, and what is the best way to validate Swedish currency?

Answer 1

When I run this class:
import java.text.NumberFormat;
import java.util.Locale;
public class CurrencyLocaleTester
    public static void main(String [] args)
        String swedish          = "1 234,56";
        String americanAsStr    = "1234.56";
        NumberFormat formatter  = NumberFormat.getCurrencyInstance(new Locale("sv", "SE"));
        double american         = new Double(americanAsStr).doubleValue();
        String formatted        = formatter.format(american);
        System.out.println("swedish  : " + swedish);
        System.out.println("american : " + american);
        System.out.println("formatted: " + formatted);
        System.out.println("compareTo: " + formatted.compareTo(swedish));
}I get this result:
C:\Edu\Java\Forum>java CurrencyLocaleTester
swedish  : 1 234,56
american : 1234.56
formatted: 1�234,56 kr
compareTo: 128I suspect that the difference is in that character between "1" and "2" in the formatted String. Also note the "kr" at the end.
Check your assumptions.
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