Java.io.FileOutputStream.getChannel() Method


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Description

The java.io.FileOutputStream.getChannel() method returns the unique FileChannel object associated with this file output stream.

Declaration

Following is the declaration for java.io.FileOutputStream.getChannel() method −

public FileChannel getChannel()

Parameters

NA

Return Value

This method returns the file channel associated with this file output stream.

Exception

NA

Example

The following example shows the usage of java.io.FileOutputStream.getChannel() method.

package com.tutorialspoint;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class FileOutputStreamDemo {

   public static void main(String[] args) throws IOException {
      FileOutputStream fos = null;
      FileChannel fc = null;
      long pos;
      byte b[] = {65, 66, 67, 68, 69};
      
      try {
      
         // create new file output stream
         fos = new FileOutputStream("C://test.txt");
         
         // write buffer to the output stream
         fos.write(b);
         
         // pushes stream content to the underlying file
         fos.flush();
         
         // returns file channel associated with this stream
         fc = fos.getChannel();
         
         // returns the number of bytes written
         pos = fc.position();
         
         // prints
         System.out.print(pos);
         
      } catch(Exception ex) {
      
         // if an error occurs
         ex.printStackTrace();
      } finally {
      
         if(fos!=null)
            fos.close();
         if(fc!=null)
            fc.close();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Position: 5

java_io_fileoutputstream.htm

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