Class CompositeFormat


  • public final class CompositeFormat
    extends Object
    Base class for formatters of composite objects (complex numbers, vectors ...).
    • Method Detail

      • getDefaultNumberFormat

        public static NumberFormat getDefaultNumberFormat​(Locale locale)
        Create a default number format. The default number format is based on NumberFormat.getInstance(java.util.Locale) with the only customizing that the maximum number of fraction digits is set to 10.
        Parameters:
        locale - the specific locale used by the format.
        Returns:
        the default number format specific to the given locale.
      • parseAndIgnoreWhitespace

        public static void parseAndIgnoreWhitespace​(String source,
                                                    ParsePosition pos)
        Parses source until a non-whitespace character is found.
        Parameters:
        source - the string to parse
        pos - input/output parsing parameter. On output, pos holds the index of the next non-whitespace character.
      • parseNextCharacter

        public static char parseNextCharacter​(String source,
                                              ParsePosition pos)
        Parses source until a non-whitespace character is found.
        Parameters:
        source - the string to parse
        pos - input/output parsing parameter.
        Returns:
        the first non-whitespace character.
      • parseNumber

        public static Number parseNumber​(String source,
                                         NumberFormat format,
                                         ParsePosition pos)
        Parses source for a number. This method can parse normal, numeric values as well as special values. These special values include Double.NaN, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY.
        Parameters:
        source - the string to parse
        format - the number format used to parse normal, numeric values.
        pos - input/output parsing parameter.
        Returns:
        the parsed number.
      • parseFixedstring

        public static boolean parseFixedstring​(String source,
                                               String expected,
                                               ParsePosition pos)
        Parse source for an expected fixed string.
        Parameters:
        source - the string to parse
        expected - expected string
        pos - input/output parsing parameter.
        Returns:
        true if the expected string was there
      • formatDouble

        public static StringBuffer formatDouble​(double value,
                                                NumberFormat format,
                                                StringBuffer toAppendTo,
                                                FieldPosition pos)
        Formats a double value to produce a string. In general, the value is formatted using the formatting rules of format. There are three exceptions to this:
        1. NaN is formatted as '(NaN)'
        2. Positive infinity is formatted as '(Infinity)'
        3. Negative infinity is formatted as '(-Infinity)'
        Parameters:
        value - the double to format.
        format - the format used.
        toAppendTo - where the text is to be appended
        pos - On input: an alignment field, if desired. On output: the offsets of the alignment field
        Returns:
        the value passed in as toAppendTo.