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Utility Classes
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Formatter
8.25.Formatter
8.25.1.
%b Formats a boolean value (wrapper or primitive)
8.25.2.
%c Formats a character
8.25.3.
%d Formats an integer
8.25.4.
%f Formats a floating-point number
8.25.5.
%s Formats an object, generally by calling its toString() method
8.25.6.
By default, arguments are formatted in their order of appearance in Formatter.
8.25.7.
Stick a number and then a dollar sign ($) immediately after the % sign to set the order
8.25.8.
Justified a field with Formatter
8.25.9.
Control the number of characters that will appear to the right of the decimal point: %w.df
8.25.10.
Internationalization and Formatter
8.25.11.
Formatting Dates with java.text.DateFormat
8.25.12.
Prints out a date in each of the four formats. (The locale is the U.S.)
8.25.13.
DateFormat.getDateInstance() accepts a style and a locale.
8.25.14.
Formatting Numbers and Currency
8.25.15.
To format currency, call NumberFormat.getCurrencyInstance().
8.25.16.
The Locale Class
8.25.17.
Create Strings that represent a given locale's country and language in terms of both the default locale and any other locale:
8.25.18.
The NumberFormat Class
8.25.19.
Use getMaximumFractionDigits(), setMaximumFractionDigits(), parse(), and setParseIntegerOnly():
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