# StdExtension extension

Extension to simulate Java's `System.out` and `System.err` utilities in Dart.

Adds helper methods to Stdout for convenient output printing, such as:

- `println()`
- `printf()`
- `printErr()`

Example usage:

    stdout.println("Hello, world!");
    stdout.printf('Welcome, %s. You have %d messages.\n', ['John', 5]);
    stdout.printErr("Something went wrong.");

on
  - Stdout

## Methods

print(String message) → void

  Available on Stdout, provided by the StdExtension extension

  Prints a string without a newline (like `System.out.print`)
printErr(Object? message) → void

  Available on Stdout, provided by the StdExtension extension

  Prints to `stderr` with a newline.
printf(String format, List<Object?> args) → void

  Available on Stdout, provided by the StdExtension extension

  Prints a formatted string using Dart's string interpolation. Simulates Java-style `printf`.
println([Object? message = '']) → void

  Available on Stdout, provided by the StdExtension extension

  Prints a string followed by a newline (like `System.out.println`)