File Locking : File Reader « File Input Output « Java

File Locking

File Locking

// :
// {Clean: file.txt}
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// See copyright notice in CopyRight.txt.

import java.nio.channels.FileLock;

public class FileLocking {
  public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("file.txt");
    FileLock fl = fos.getChannel().tryLock();
    if (fl != null) {
      System.out.println("Locked File");
      System.out.println("Released Lock");
} ///:~

Related examples in the same category

1.Use a FileReader to display a text file.
2.Read the file one buffer at a time
3.Read file upside down
4.Loading text from a file
5.Reading Numbers from a Text File
6.Reading Numbers from a Text File, Line by Line
7.Indent - prepend leading spaces
8.Read a file and print, using BufferedReader and System.out
9.Open File By Name
10.Read a file containing an offset, and a String at that offset
11.Testing for end of file while reading a byte at a timeTesting for end of file while reading a byte at a time
12.Getting channels from streams
13.A word counting utility with FileReader.
14.Reads sequentially from multiple sources
15.Reader for UCS-2 and UCS-4 encodings. (i.e., encodings from ISO-10646-UCS-(2|4)).
16.Reader for the ISO-8859-1 encoding.
17.This class is an part implementation of DataInput. It wraps a Reader object.
18.A StraightStreamReader is a bridge from byte streams to character streams
19.Read and return the entire contents of the supplied Reader. This method always closes the reader when finished reading.
20.Compare the contents of two Readers to determine if they are equal or not.
21.Read from Reader and write to Writer until there is no more input from reader.