Command-Line I/O Objects (The Java™ Tutorials > Essential Classes

Trail: Essential Classes
Lesson: The Platform Environment
Section: System Utilities

Command-Line I/O Objects

System Properties

The Security Manager

Miscellaneous Methods in System

PATH and CLASSPATH

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Command-Line I/O Objects

System provides several predefined I/O objects that are useful in a Java application that is meant to be launched from the command line. These implement the Standard I/O streams provided by most operating systems, and also a console object that is useful for entering passwords. For more information, refer to I/O from the Command Line in the Basic I/O lesson.

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