The Format Specifiers : Formatter Specifiers « Development « Java Tutorial

Format SpecifierConversion Applied
%a and %AFloating-point hexadecimal
%dDecimal integer
%hHash code of the argument
%eScientific notation
%fDecimal floating point
%gUses %e or %f, whichever is shorter
%oOctal integer
%nInserts a newline character
%tTime and date
%xInteger hexadecimal
%%Inserts a % sign

6.5.Formatter Specifiers
6.5.1.Formatting Output with Formatter
6.5.2.The Format Specifiers
6.5.3.The %g format specifier causes Formatter to use either %f or %e, whichever is shorter
6.5.4.Hex: %x, Octal: %o: Integer hexadecimal, Octal integer
6.5.5.%h: Hash code of the argument
6.5.6.%a: Floating-point hexadecimal
6.5.7.Unknown Format Conversion Exception
6.5.8.Formatter with different data types
6.5.9.using the %t specifier with Formatter.
6.5.10.Use Formatter to vertically align numeric values.
6.5.11.Use Formatter to left-justify strings within a table.
6.5.12.Using group separators.
6.5.13.The # symbol shows a digit or nothing if no digit present