Lava extensions to standard C printf are indicated in blue font. Lava's printf classes faithfully reproduce all of the formatting features available in the C version of printf, but also provide additional functionality not available in the C version. It is the versatility of these parameters that make printf formatting so powerful. whether to pad short numbers with spaces or zeros, etc.the left- or right-alignment of text within a field,.the number of digits beyond the decimal point (for real numbers),.The conversion of argument list elements into strings is governed by parameters embedded in the format specifiers. When output is produced, literal substrings are copied verbatim, but format specifiers are replaced with string representations of elements in the argument list. The format string is composed of literal substrings and format specifiers. Where the first parameter defines the format (as before), and the second parameter is a vector of elements, specified as an arbitrary length Object array. Instead, the Lava's printf classes simply accept a pair of arguments, Unfortunately, Java does not directly support variable argument lists.

Where the first parameter defines the format, and all additional parameters are the objects to be formatted. In C, printf output is specified using a 'tuple' of arbitrary length, an argument list, or a vector of data to be formatted according to the template.

Printf allows the programmer to specify textual representations of data using two parameters: Lava's printf classes have been designed to offer Java programmers the same text- and data-formatting features that C programmers have enjoyed. Complete Printf for Java Format String Specification Complete Printf for Java Format String Specification

Java string format