Brief Overview of ByteBuffer - Java File Path IO

Introduction

A buffer is essentially an array that holds some data to be written or that was just read.

ByteBuffer Properties

The following are the essential properties of a buffer:

• Limit: When writing from a buffer, the limit specifies how much data remains to get. When you are reading into a buffer, the limit specifies how much room remains to put data into.
• Position: keeps track of how much data you have read or written.
• Capacity: specifies the maximum amount of data that can be stored in a buffer. The limit can never be larger than the capacity.

ByteBuffer provides a set of get() and put() methods for accessing data.

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Related Tutorials

• Creating a Stream from a Channel
• Writing to a file using the SeekableByteChannel interface
• Query the position using the SeekableByteChannel
• Decode and display the content of the destination ByteBuffer into the completed() method of CompletionHandler
• ByteBuffer Utilities for read and write