Java Programming/Basic IO
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This section covers the Java platform classes used for basic input and output. But before we begin we need to have a concrete understanding of what input and output means in programming. To grasp this concept, think of the Java platform as a system.
[edit] Understanding input and output
The Java platform is an isolated entity, a space on your OS in a way, where everything outside this system is its environment. The interaction between the system and its environment is a two-way dialogue of sorts. Either the system receives messages from its environment, or it conveys its messages to the same. When a message is received to the system, it is called an input, its opposite is an output. On a whole, this communication is termed input/output abbreviated as I/O.
The following chapters are designed to introduce basic input and output in Java, including reading text input from the keyboard, outputting text to the monitor, and reading/writing files from the file system. More advanced user interaction using Graphics and Graphical User Interface (GUI) programs is taken up in the later section on Swing.
