With missing arguments or arguments that are not of the right class for the specified format, a ParseException is thrown. First, format checks to see if a Format object has been specified for the argument with the setFormats method. If so, then format uses that Format object to format the argument. Otherwise, the argument is formatted based on the object's type. Otherwise, it uses the toString method.
Returns pattern with formatted objects.
Generates a hash code for the message format object. This locale is used for fetching default number or date format information. See the class description. See the class description. See the class description about format numbering.