March 2005
Beginner to intermediate
1254 pages
104h 21m
English
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Name
Formattable
Synopsis
This
interface should be implemented by
classes that want to interact with the Formatter
class more intimately than is possible with the
toString method. When a
Formattable object is the argument for a
%s or %S conversion, its
formatTo( ) method is invoked rather than its
toString( ) method. formatTo( )
is responsible for formatting a textual representation of the object
to the specified formatter, subject to the
constraints imposed by the flags,
width, and
precision arguments.
The flags argument is a bitmask of zero or
more FormattableFlags constants. Each flag
provides information about the format specification that resulted in
the invocation of formatTo( ).
FormattableFlags.ALTERNATE indicates that the
# flag was used and that the
Formattable should format itself using some
alternate form. The interpretation of the alternate form is entirely
up to the Formattable implementation.
LEFT_JUSTIFY means that the -
flag was used and that the Formattable should pad
its output on the right, instead of on the left.
UPPERCASE indicates that the %S
conversion was used instead of %s and the
Formattable should output uppercase characters
instead of lowercase.
The width and
precision arguments specify the width and
precision specified along with the %s format
specifier, or -1 if no width and precision are specified. The
Formattable object should treat these values the
same way that Formatter does. The text to be
output should first be truncated to fit within
precision ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.