package cnp.ew.converter;

public class CpIntegerFromStringConverter implements CpFromStringConverter
{
    public Object convert(String s) throws NumberFormatException
    {
        if (s.length() == 0) {
            return new Integer(0);
        }
        return new Integer(s);
    }

    public boolean isValidCharacter(char ch)
    {
        return Character.isDigit(ch) || ch == '-';
    }
}