Java IO Tutorial - Java FileChannel.position(long newPosition)

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Syntax

FileChannel.position(long newPosition) has the following syntax.

public abstract FileChannel position(long newPosition)    throws IOException

Example

In the following code shows how to use FileChannel.position(long newPosition) method.

import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.channels.FileChannel;
//from   ww  w. ja  v  a2s  .c  om
public class Main {
  public static void main(String[] argv) throws IOException {
    RandomAccessFile randomAccessFile = new RandomAccessFile("test.dat", "r");

    randomAccessFile.seek(1000);

    FileChannel fileChannel = randomAccessFile.getChannel();

    // This will print "1000"
    System.out.println("file pos: " + fileChannel.position());

    randomAccessFile.seek(500);

    // This will print "500"
    System.out.println("file pos: " + fileChannel.position());

    fileChannel.position(200);

    // This will print "200"
    System.out.println("file pos: " + randomAccessFile.getFilePointer());
  }
}

The code above generates the following result.

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