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The Java™ Tutorials
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Basic I/O
I/O Streams
Byte Streams
Character Streams
Buffered Streams
Scanning and Formatting
Scanning
Formatting
I/O from the Command Line
Data Streams
Object Streams
File I/O (Featuring NIO.2)
What Is a Path? (And Other File System Facts)
The Path Class
Path Operations
File Operations
Checking a File or Directory
Deleting a File or Directory
Copying a File or Directory
Moving a File or Directory
Managing Metadata (File and File Store Attributes)
Reading, Writing, and Creating Files
Random Access Files
Creating and Reading Directories
Links, Symbolic or Otherwise
Walking the File Tree
Finding Files
Watching a Directory for Changes
Other Useful Methods
Legacy File I/O Code
Summary
Questions and Exercises
Trail: Essential Classes
Lesson: Basic I/O
Section: I/O Streams
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# Scanning and Formatting

Programming I/O often involves translating to and from the neatly formatted data humans like to work with. To assist you with these chores, the Java platform provides two APIs. The scanner API breaks input into individual tokens associated with bits of data. The formatting API assembles data into nicely formatted, human-readable form.

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