Printline

Printline is a term used in certain programming languages and educational environments to denote a function or procedure that outputs a line of text or other data to standard output, automatically appending a newline at the end. It is not universal; not all languages provide a function by this exact name, and some languages use different conventions (for example, println, print with an explicit newline, or formatted output functions).

Semantics vary by implementation: a printline may accept a single value, multiple values, or a formatted string; it may perform implicit type conversion to a string before printing; it often returns no meaningful value (void) or, in some languages, the printed string itself. In many contexts, printline is used for simple display, debugging, and console-based user interaction.

In practice, printline is most common in teaching languages or lightweight libraries that aim to keep I/O straightforward. Some domains provide a similar function under a capitalized name like PrintLine or as a method on an output object. It contrasts with print (which may not add a newline) and with formatting functions that require explicit newline characters.

See also: print, println, printf, echo, write, stdout.