Create a read-only memory-mapped file : FileChannel « File « Java Tutorial

1.	Language
2.	Data Type
3.	Operators
4.	Statement Control
5.	Class Definition
6.	Development
7.	Reflection
8.	Regular Expressions
9.	Collections
10.	Thread
11.	File
12.	Generics
13.	I18N
14.	Swing
15.	Swing Event
16.	2D Graphics
17.	SWT
18.	SWT 2D Graphics
19.	Network
20.	Database
21.	Hibernate
22.	JPA
23.	JSP
24.	JSTL
25.	Servlet
26.	Web Services SOA
27.	EJB3
28.	Spring
29.	PDF
30.	Email
31.	J2ME
32.	J2EE Application
33.	XML
34.	Design Pattern
35.	Log
36.	Security
37.	Apache Common
38.	Ant
39.	JUnit

Java Source Code / Java Documentation

Java Open Source

Jar File Download

Photoshop Tutorials

Flash Tutorials

3ds-Max Tutorials

Illustrator Tutorials

C# / CSharp Tutorial

C# / CSharp Open Source

ASP.NET Tutorial

JavaScript DHTML

JavaScript Tutorial

JavaScript Reference

HTML CSS Reference

Python Tutorial

Python Open Source

SQL Server / T-SQL

SQL Server / T-SQL Tutorial

Oracle PL / SQL

Oracle PL/SQL Tutorial

VB.Net Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Java Tutorial » File » FileChannel

11. 51. 23. Create a read-only memory-mapped file


import java.io.File;

import java.io.RandomAccessFile;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;



public class Main {

  public static void main(String[] argv) throws Exception {

    File file = new File("filename");



    FileChannel roChannel = new RandomAccessFile(file, "r").getChannel();

    ByteBuffer roBuf = roChannel.map(FileChannel.MapMode.READ_ONLY, 0, (int) roChannel.size());

  }

}

11. 51. FileChannel
	11. 51. 1.	Get FileChannel from FileInputStream
	11. 51. 2.	Using FileChannel to read text file
	11. 51. 3.	Using FileChannel to random access to a File
	11. 51. 4.	Writing and Appending a ByteBuffer to a File
	11. 51. 5.	A channel for a physical file
	11. 51. 6.	Using a Channel to Write a String to a File
	11. 51. 7.	Writing a String as Bytes
	11. 51. 8.	Writing Varying Length Strings to a File
	11. 51. 9.	Writing Numerical Data to a File
	11. 51. 10.	Writing Mixed Data to a File
	11. 51. 11.	The Gathering Write
	11. 51. 12.	Copying Files using FileChannel
	11. 51. 13.	New IO Copier
	11. 51. 14.	New IO Duplicator
	11. 51. 15.	Locking Copier
	11. 51. 16.	File concatenation based on new IO
	11. 51. 17.	New IO Transfer
	11. 51. 18.	Save and read text using FileChannel with UTF-16BE encoding
	11. 51. 19.	Save and read text using FileChannel without encoding
	11. 51. 20.	Using transferTo() between channels
	11. 51. 21.	Test overlapping locks on different file channels
	11. 51. 22.	Lock a FileChannel and release the lock
	11. 51. 23.	Create a read-only memory-mapped file
	11. 51. 24.	Create a read-write memory-mapped file
	11. 51. 25.	Copying a file using channels and buffers

www.java2java.com | Contact Us

Copyright 2009 - 12 Demo Source and Support. All rights reserved.

All other trademarks are property of their respective owners.